All Stories

  1. Progress in Multimodal En Face Imaging: feature introduction
  2. Noise of supercontinuum sources in spectral domain optical coherence tomography
  3. Down-conversion en-face optical coherence tomography
  4. Development of Gold-PAGE: towards the electrophoretic analysis of sulphurous biopolymers
  5. Complex master-slave for long axial range swept-source optical coherence tomography
  6. Group refractive index and group velocity dispersion measurement by complex master slave interferometry
  7. The value of ultrahigh resolution OCT in dermatology - delineating the dermo-epidermal junction, capillaries in the dermal papillae and vellus hairs
  8. An overview of methods to mitigate artifacts in optical coherence tomography imaging of the skin
  9. Q-switch-pumped supercontinuum for ultra-high resolution optical coherence tomography
  10. Speckle variance OCT for depth resolved assessment of the viability of bovine embryos
  11. Passive optical module for polarization-sensitive optical coherence tomography systems
  12. En-face time-domain optical coherence tomography with dynamic focus for high-resolution imaging
  13. Optimization of excitation of fiber Fabry–Perot tunable filters used in swept lasers using a phase-correction method
  14. Gabor fusion master slave optical coherence tomography
  15. Master/slave optical coherence tomography imaging of eyelid basal cell carcinoma
  16. Acousto-optic tunable filter for dispersion characterization of time-domain optical coherence tomography systems
  17. Single all-fiber-based nanosecond-pulsed supercontinuum source for multispectral photoacoustic microscopy and optical coherence tomography
  18. Master/slave interferometry – ideal tool for coherence revival swept source optical coherence tomography
  19. Optical module to extend any Fourier-domain optical coherence tomography system into a polarisation-sensitive system
  20. Dentistry investigations of teeth and dental prostheses using OCT
  21. Handheld scanning probes for optical coherence tomography: developments, applications, and perspectives
  22. En-face optical coherence tomography revival
  23. Assessment of dental plaque by optoelectronic methods
  24. Evaluation of Tizian overlays by means of a swept source optical coherence tomography system
  25. OCT evaluation of single ceramic crowns: comparison between conventional and chair-side CAD/CAM technologies
  26. All ceramic table tops analyzed using swept source optical coherence tomography
  27. Marginal integrity evaluation of dental composite using optical coherence tomography
  28. OCT and shear-force evaluations of zirconia Fixed Partial Prosthesis processed with a conventional CAD/CAM technology
  29. Broadband master-slave interferometry using a super-continuum source
  30. Coarse-grained and fine-grained parallel optimization for real-time en-face OCT imaging
  31. Dual mode-locked swept sources for SS-OCT
  32. Spectral-domain, polarization-sensitive optical coherence tomography system insensitive to fiber disturbances
  33. In-vivo, real-time cross-sectional images of retina using a GPU enhanced master slave optical coherence tomography system
  34. Spectroscopic low coherence interferometry using a supercontinuum source and an ultra broadband spectrometer
  35. Raman spectroscopic identification of size-selected airborne particles for quantitative exposure assessment
  36. Complex master slave interferometry
  37. High energy supercontinuum sources using tapered photonic crystal fibers for multispectral photoacoustic microscopy
  38. GPU implementation of cross-correlation for image generation in real time
  39. Constructive solutions of handheld probes with galvanometer scanners for biomedical and industrial imaging: applications in OCT
  40. Handheld probes and galvanometer scanning for optical coherence tomography
  41. 70 kHz full 4x4 Mueller polarimeter and simultaneous fiber calibration for endoscopic applications
  42. Master slave en-face OCT/SLO
  43. Two-grating Talbot bands spectral-domain interferometer
  44. Polarization-sensitive optical coherence tomography system tolerant to fiber disturbances using a line camera
  45. Full-Field Swept Source Master-Slave Optical Coherence Tomography
  46. On the possibility of producing true real-time retinal cross-sectional images using a graphics processing unit enhanced master-slave optical coherence tomography system
  47. Short ring cavity swept source based on a highly reflective chirped FBG
  48. Novel dispersion tolerant interferometry method for accurate measurements of displacement
  49. Simultaneous Measurement of Flow at Several Depths Using Multiple Active Paths in a Low-Coherence Interferometer
  50. Demonstration of tolerance to dispersion of master/slave interferometry
  51. Closed loop tracked Doppler optical coherence tomography based heart monitor for the Drosophila melanogaster larvae
  52. Dual-mode-locking mechanism for an akinetic dispersive ring cavity swept source
  53. Real-time calibration-free C-scan images of the eye fundus using Master Slave swept source optical coherence tomography
  54. MicroCT and optical coherence tomography imagistic assessment of the dental roots adhesive
  55. Direct composite fillings: an optical coherence tomography and microCT investigation
  56. Akinetic swept source with adjustable coherence length for SS-OCT
  57. Master-Slave optical coherence tomography for parallel processing, calibration free and dispersion tolerance operation
  58. Demonstration of depth-resolved wavefront sensing using a swept-source coherence-gated Shack-Hartmann wavefront sensor
  59. Optical Coherence Tomography for Non-Invasive ex vivo Investigations in Dental Medicine — a Joint Group Experience (Review)
  60. Spectral delay line for display control in swept source OCT
  61. Swept source optical coherence tomography Gabor fusion splicing technique for microscopy of thick samples using a deformable mirror
  62. Noninvasive Quantitative Evaluation of the Dentin Layer during Dental Procedures Using Optical Coherence Tomography
  63. An FPGA Architecture for Extracting Real-Time Zernike Coefficients from Measured Phase Gradients
  64. OCT Imaging in Glaucoma
  65. Assessment of the sealant/tooth interface using optical coherence tomography
  66. Surface imaging of metallic material fractures using optical coherence tomography
  67. Versatile Swept Source With Adjustable Coherence Length
  68. Design and testing of prototype handheld scanning probes for optical coherence tomography
  69. Towards a research pole in photonics in Western Romania
  70. Towards simultaneous Talbot bands based optical coherence tomography and scanning laser ophthalmoscopy imaging
  71. Zirconia enriched dental adhesive: A solution for OCT contrast enhancement. Demonstrative study by synchrotron radiation microtomography
  72. Imaging the eye fundus with real-time en-face spectral domain optical coherence tomography
  73. Towards using spectral domain optical coherence tomography for dental wear monitoring
  74. Frequency multiplexed long range swept source optical coherence tomography
  75. A new algorithm for speckle reduction of optical coherence tomography images
  76. Imaging of neuronal tissue using a prism adjunct
  77. Integral ceramic superstructure evaluation using time domain optical coherence tomography
  78. Calibration-free B-scan images produced by master/slave optical coherence tomography
  79. Front Matter: Volume 8925
  80. Imaging of oral pathological tissue using optical coherence tomography
  81. The advantages of a swept source optical coherence tomography system in the evaluation of occlusal disorders
  82. Imaging of noncarious cervical lesions by means of a fast swept source optical coherence tomography system
  83. Trends in optical coherence tomography applied to medical imaging
  84. Imagistic evaluation of matrix bone interface
  85. Temperature variation in metal ceramic technology analyzed using time domain optical coherence tomography
  86. Different matrix evaluation for the bone regeneration of rats' femours using time domain optical coherence tomography
  87. Optical Coherence Tomography and Scanning Laser Ophthalmoscopy: approaches to dual-channel retinal tissue imaging
  88. Tuning a fast linear camera used within a Talbot bands spectrometer-based optical coherence tomography set-up
  89. Artifacts cancellation in Fourier domain optical coherence tomography using balance detection
  90. Evaluation of metal-polymeric fixed partial prosthesis using optical coherence tomography
  91. Optical Imaging of Oral Squamous Cell Carcinoma Using Optical Coherence Tomography and Micro CT
  92. Multiplexing-based polarization sensitive en-face optical coherence tomography
  93. Fast algorithm for blind optimisation of optical systems; statistics and methodology
  94. Research Lead Student Projects on Multi-Disciplinary Optomechatronics with Applications in Biomedical Imaging
  95. Two applications of solid phantoms in performance assessment of optical coherence tomography systems
  96. Approaches to General Purpose GPU Acceleration of Digital Signal Processing in Optical Coherence Tomography Systems
  97. Quantitative evaluation of dental abfraction and attrition using a swept-source optical coherence tomography system
  98. A versatile frequency domain multiplexer for optical coherence tomography
  99. Effects of fiber bundle on the performance of full-field swept source OCT
  100. Tuning parameters and performance of a real-time depth-resolved wavefront sensor
  101. Time domain optical coherence tomography investigation of bone matrix interface in rat femurs
  102. Master–slave interferometry for parallel spectral domain interferometry sensing and versatile 3D optical coherence tomography
  103. Image quality improvement in optical coherence tomography using Lucy–Richardson deconvolution algorithm
  104. Spatial Compounding Algorithm for Speckle Reduction of Dynamic Focus OCT Images
  105. Speckle reduction using an artificial neural network algorithm
  106. Optical imaging of oral pathological tissue using optical coherence tomography and synchrotron radiation computed microtomography
  107. Evaluating the benefits of using balance detection in Fourier domain optical coherence tomography
  108. Real-time depth-resolved Shack-Hartmann measurements
  109. Control of focusing in high resolution eye imaging and microscopy using a deformable mirror
  110. Bone regeneration assessment by optical coherence tomography and MicroCT synchrotron radiation
  111. Full-Field Thickness Distribution of Human Tympanic Membrane Obtained with Optical Coherence Tomography
  112. Frequency multiplexed long range swept source optical coherence tomography
  113. Investigation of basal cell carcinoma using dynamic focus optical coherence tomography
  114. Real-time correction of geometric distortion artefacts in large-volume optical coherence tomography
  115. Combining Gabor and Talbot bands techniques to enhance the sensitivity with depth in Fourier domain optical coherence tomography
  116. Polarization sensitive en face optical coherence tomography using multichannel acousto-optic deflectors
  117. Direct electronic linearization for camera based spectral domain optical coherence tomography
  118. Polygon mirror scanners in biomedical imaging: a review
  119. Quantitative evaluation of scattering in optical coherence tomography skin images using the extended Huygens–Fresnel theorem
  120. Algorithm for Excitation Optimization of Fabry–Pérot Filters Used in Swept Sources
  121. Simultaneous multiple-depths en-face optical coherence tomography using multiple signal excitation of acousto-optic deflectors
  122. Optical sources for optical coherence tomography (OCT)
  123. Polarization maintaining multiple-depth en face optical coherence tomography system using active re-circulation loops in the non-stationary state
  124. Phantom testing of a novel endoscopic OCT probe: a prelude to clinical in-vivo laryngeal use
  125. Ex-vivo endoscopic laryngeal cancer imaging using two forward-looking fiber optic scanning endoscope probes
  126. Dual instrument for in vivo and ex vivo OCT imaging in an ENT department
  127. Optical coherence tomography with real time, direct en-face views (coronal, or C-scans)
  128. Demonstration of real-time depth-resolved Shack–Hartmann measurements
  129. A common path fibre optic based interferometric displacement sensor with enhanced range
  130. Morphological operation-based bi-dimensional empirical mode decomposition for automatic background removal of fringe patterns
  131. Fourier domain optical coherence tomography system with balance detection
  132. Optical coherence tomography
  133. Direct electronic linearization for camera-based spectral domain optical coherence tomography
  134. Gabor fusion technique in a Talbot bands optical coherence tomography system
  135. Swept-source coherence-gated Shack-Hartmann wavefront sensor
  136. Multiple-depth en face optical coherence tomography using active recirculation loops in the non-stationary state
  137. Ex vivo optical coherence tomography imaging of larynx tissues using a forward-viewing resonant fiber-optic scanning endoscope
  138. Enhancement of the signal-to-noise ratio at depths in Fourier domain optical coherence tomography
  139. Dynamic focus optical coherence tomography: feasibility for improved basal cell carcinoma investigation
  140. Phantoms for performance assessment of optical coherence tomography systems
  141. Sensor-less aberration correction in optical imaging systems using blind optimization
  142. The assessment of orthodontic bonding defects: optical coherence tomography followed by three-dimensional reconstruction
  143. Optical investigations of various polymeric materials used in dental technology
  144. OCT and RX validation of metal-ceramic crowns repaired with ceramic material
  145. Ceramic and polymeric dental onlays evaluated by photo-elasticity, optical coherence tomography, and micro-computed tomography
  146. Biomedical implications of dental-ceramic defects investigated by numerical simulation, radiographic, microcomputer tomography, and time-domain optical coherence tomography
  147. Time-domain coherence-gated Shack-Hartmann wavefront sensor
  148. Imagistic evaluation of direct dental restoration: en face OCT versus SEM and microCT
  149. Early characterization of occlusal overloaded cervical dental hard tissues by en face optical coherence tomography
  150. Dual excitation waveform Fabry-Perot tunable filters used in swept sources
  151. Experimental Method to Find the Optimum Excitation Waveform to Quench Mechanical Resonances of Fabry–Pérot Tunable Filters Used in Swept Sources
  152. Trends in optical coherence tomography
  153. Route to OCT from OFS at University of Kent
  154. SEM and microCT validation for en face OCT imagistic evaluation of endodontically treated human teeth
  155. High-speed (92 kHz) Fourier domain optical coherence tomography system in the 1 μm band with real-time data re-sampling
  156. Generating multiple depth en-face images in optical coherence tomography
  157. Comparative assessment of three algorithms to control a deformable mirror for an adaptive optics system with no wavefront sensor
  158. Characterization of a fibre optic swept laser source at 1 μm for optical coherence tomography imaging systems
  159. Adaptive optics assisted Fourier domain OCT with balanced detection
  160. Combined Neodymium–Ytterbium-Doped ASE Fiber-Optic Source for Optical Coherence Tomography Applications
  161. Attenuation of mirror image and enhancement of the signal-to-noise ratio in a Talbot bands optical coherence tomography system
  162. Arrhythmia Caused by a Drosophila Tropomyosin Mutation Is Revealed Using a Novel Optical Coherence Tomography Instrument
  163. Extra long imaging range swept source optical coherence tomography using re-circulation loops
  164. Control of an electromagnetic deformable mirror using high speed dynamics characterization and identification
  165. Multiple-depth en face optical coherence tomography using active recirculation loops
  166. Imaging of periocular basal cell carcinoma using en face optical coherence tomography: a pilot study
  167. Genetic algorithm for optimization of optical systems
  168. Root canal filling evaluation using optical coherence tomography
  169. Morphological characterization of dental prostheses interfaces using optical coherence tomography
  170. Adhesive improvement in optical coherence tomography combined with confocal microscopy for class V cavities investigations
  171. Variable lateral size imaging of the human retina in vivo by combined confocal/en face optical coherence tomography with closed loop OPD-locked low coherence interferometry based active axial eye motion tracking
  172. Preliminary optical coherence tomography investigation of the temporo-mandibular joint disc
  173. Perspectives of optical scanning in OCT
  174. From controlling the shape of Talbot bands' visibility to improving the sensitivity decay with depth in FD-OCT
  175. Analysis of dental abfractions by optical coherence tomography
  176. 20-mW 70-nm bandwidth ASE fibre optic source at 1060-nm wavelength region for optical coherence tomography
  177. Depth-resolved wavefront aberrations using a coherence-gated Shack-Hartmann wavefront sensor
  178. Real-time resampling in Fourier domain optical coherence tomography using a graphics processing unit
  179. Real-Time Resampling in FD-OCT Using a Graphics Processing Unit
  180. Coherence-gated Shack-Hartmann Wavefront Sensor
  181. Speckle noise reduction in optical coherence tomography of paint layers
  182. A rapid method of measuring dispersion in low coherence interferometry and optical coherence tomography systems
  183. Modeling a Galvoscanner with an Optimized Scanning Function
  184. Investigation of computer-based skin cancer detection using optical coherence tomography
  185. Optical coherence tomography combined with confocal microscopy for investigation of interfaces in class V cavities
  186. Occlusal overload investigations by noninvasive technology: fluorescence microscopy and en-face optical coherence tomography
  187. Line-field spectral domain optical coherence tomography using a 2D camera
  188. Investigation of Er:YAG laser root canal irradiation using en face OCT
  189. En face optical coherence tomography investigation of interface fiber posts/adhesive cement/root canal wall
  190. Active axial eye motion tracking by extended range, closed loop OPD-locked white light interferometer for combined confocal/en face optical coherence tomography imaging of the human eye fundus in vivo
  191. In vivo in situ en face optical coherence tomography imaging of chick embryos
  192. Marginal adaptation of ceramic veneers investigated with en face optical coherence tomography
  193. Dual optical coherence tomography/fluorescence microscopy for monitoring ofDrosophila melanogasterlarval heart
  194. En face optical coherence tomography investigation of apical microleakage after laser-assisted endodontic treatment
  195. The importance of holograms in dentistry
  196. Evaluation of effective noise bandwidth for broadband optical coherence tomography operation
  197. Multidimensional en-Face OCT imaging of the retina
  198. Optical coherence tomography and confocal microscopy investigations of dental structures and restoration materials
  199. Sequential en-face optical coherence tomography imaging and monitoring of Drosophila Melanogaster larval heart
  200. From Talbot bands to no mirror terms in Fourier domain OCT: a quest on the fundamental origin of the sensitivity decay with depth
  201. Early detection of tooth wear by en-face optical coherence tomography
  202. Simultaneous OCT/SLO/ICG Imaging
  203. Simplified dynamic focus method for time domain OCT
  204. Control of visibility profile in spectral low-coherence interferometry
  205. Combinations of techniques in imaging the retina with high resolution
  206. Controlling the shape of Talbot bands' visibility
  207. Root canal filling evaluation using optical coherence tomography
  208. Quasi-simultaneous OCT/confocal imaging
  209. Investigation of bracket bonding for orthodontic treatments using en-face optical coherence tomography
  210. Implant bone interface investigated with a non-invasive method: optical coherence tomography
  211. Fibres reinforced dentures investigated with en-face optical coherence tomography
  212. Combining confocal microscopy and optical coherence tomography for imaging in developmental biology
  213. An optical coherence tomography investigation of materials defects in ceramic fixed partial dental prostheses
  214. Versatile confocal/optical coherence tomography system for embryonic developmental imaging
  215. Keratometry and corneal topography using multiple delay element OCT
  216. Investigations of OCT imaging performance using a unique source providing several spectral wavebands
  217. Fixed partial dentures investigated by optical coherent tomography
  218. Complete denture analyzed by optical coherence tomography
  219. Quasi-simultaneous optical coherence tomography and confocal imaging
  220. Quality assessment of dental treatments using en-face optical coherence tomography
  221. Direct corneal elevation measurements using multiple delay en face optical coherence tomography
  222. Quasi-Simultaneous OCT/SLO Imaging
  223. Statistics of the depth-scan photocurrent in time-domain optical coherence tomography
  224. Characterization and modelling of an improved method of phase detection scheme for displacement optic sensors
  225. Optical-coherence tomography, extension to imaging of low coherence interferometry
  226. Power-efficient Fourier domain optical coherence tomography setup for selection in the optical path difference sign using Talbot bands
  227. Optical coherence tomography for art conservation and archaeology
  228. Progress in the en-face optical coherence tomography applied to eye imaging
  229. Multiscan time-domain optical coherence tomography for retina imaging
  230. Ultrahigh-Resolution Combined Coronal Optical Coherence Tomography Confocal Scanning Ophthalmoscope (OCT/SLO): A pilot study
  231. Experimental investigation of circular light depolarization using polarization sensitive OCT
  232. Cornea curvature measurement using single shot C-scan OCT
  233. Combined confocal/ en face optical coherence tomography imaging of the human eye fundus in vivo in the 1050 nm spectral region
  234. Unique interpretation of Talbot Bands and Fourier domain white light interferometry
  235. Investigations of the eye fundus using a simultaneous optical coherence tomography/indocyanine green fluorescence imaging system
  236. Correcting ocular aberrations with a high stroke deformable mirror
  237. High dynamic range temperature-compensated fibre Bragg gratings sensor for structural monitoring of buildings
  238. Combined confocal/en face T-scan-based ultrahigh-resolution optical coherence tomography in vivo retinal imaging
  239. Fibre Bragg gratings sensor for monitoring distance changes between structural elements inside a building
  240. Simultaneous OCT/SLO/ICG system
  241. Multiscan OCT system for A, T, B, C and 3-D imaging
  242. Flying spot en-face OCT for monitoring cell distribution in collagen-based constructs
  243. Dual SLO/T-scan based en face ultrahigh resolution OCT for ophthalmic imaging
  244. Optical coherence tomography for flow examination
  245. IMAGING THE RETINA BY EN FACE OPTICAL COHERENCE TOMOGRAPHY
  246. Adaptive optics enhanced simultaneous en-face optical coherence tomography and scanning laser ophthalmoscopy
  247. Design Criteria of an Adaptive Optics - OCT/SLO System
  248. Fast scanning transmissive delay line for optical coherence tomography
  249. Improvement of in vivo en-face OCT retinal images using adaptive optics
  250. In-fiber optical coherence tomograph for examination of paintings
  251. Optical coherence tomography
  252. CORRECTIONS
  253. Long range extensometer for civil structure monitoring using fibre Bragg gratings
  254. En-face optical coherence tomography - a novel application of non-invasive imaging to art conservation
  255. Fluid-flow velocity measurement with Doppler optical coherence tomography
  256. Optical coherence tomography: a non-invasive technique applied to conservation of paintings
  257. Simultaneous OCT/ICG fluorescence imaging system in the clinic
  258. Signal-to-noise ratio in balanced OCT under wideband illumination
  259. Broadband SLD-based source for retina investigations
  260. Hybrid configuration for simultaneous en-face OCT imaging at different depths
  261. 10.4028/0-87849-351-4.193
  262. Simultaneous optical coherence tomography–Indocyanine Green dye fluorescence imaging system for investigations of the eye’s fundus
  263. Quasi-simultaneous en face imaging using low-coherence interferometry
  264. Simultaneous OCT/confocal-OCT/ICG system for imaging the eye
  265. 3-D optical coherence tomography of the laryngeal mucosa*
  266. Polarization-sensitive OCT system using single-mode fiber
  267. Developments towards a fiber optic accelerometer with high responsivity and low crosstalk
  268. Novel interferometric magnetic field sensor based on the Faraday effect in diluted magnetic semiconductor crystals
  269. Limitation of the achievable signal-to-noise ratio in optical coherence tomography due to mismatch of the balanced receiver
  270. Avalanche photodiode-based optical coherence tomography
  271. Optical coherence tomography in otolaryngology: original results and review of the literature
  272. Simultaneous OCT/ICG fluorescence imaging system for investigations of the ocular fundus
  273. In vivo T-scan-based polarization-sensitive OCT of the optic nerve
  274. Challenges and recognizable patterns in the en-face OCT of the retina
  275. Application of OCT to examination of easel paintings
  276. Optimization of OCT signal-to-noise ratio when excess photon noise increases due to mismatch of the balanced receiver
  277. Correction of distortions in optical coherence tomography imaging of the eye
  278. Combined multiplanar optical coherence tomography and confocal scanning ophthalmoscopy
  279. Quasi-simultaneous OCT en-face imaging with two different depth resolutions
  280. OCT imaging of the larynx: a feasibility study
  281. Multiplanar OCT/confocal ophthalmoscope in the clinic
  282. Application of VRML for three-dimensional interactive real-time comparison of OCT structures with standard histology
  283. Correlation of quantitative light-induced fluorescence and optical coherence tomography applied for detection and quantification of early dental caries
  284. En face OCT
  285. En-face OCT technology for high-resolution imaging of tissue
  286. Versatile optical coherence tomography system applied to the imaging of teeth
  287. Optical coherence tomography correlated with a functional fluorescence imaging for detection and quantification of dental caries
  288. En-face OCT imaging of the anterior chamber
  289. Optical coherence tomography for dental caries detection and analysis
  290. Assessment of dental caries with optical coherence tomography: effect of ambient factors
  291. Adjustable coherence length sources for low-coherence interferometry
  292. Signal-to-noise ratio in an OCT/confocal system and penetration depth in OCT
  293. Covering the gap in depth resolution between OCT and SLO in imaging the retina
  294. En-face optical coherence tomography
  295. Simultaneous low coherence interferometry imaging at two depths using an integrated optic modulator
  296. 3D OCT images from retina and skin
  297. Visualization and measurement methods using transversal OCT images of the eye fundus
  298. OCT en-face images from the retina with adjustable depth resolution in real time
  299. Theoretical study of Talbot-like bands observed using a laser diode below threshold
  300. Talbot-like bands for a laser diode below threshold
  301. Security enhancement for a DPSK telecommunication system using false data transmission
  302. Double security level in a telecommunication system based on phase coding and false data transmission
  303. Simple very low cost high speed 2 input AND gate
  304. Combined electronic clipped correlator and fibre-optic correlator
  305. Delay measurements using a self-pulsating laser with optoelectronic feedback
  306. Channelled spectrum display using a CCD array for student laboratory demonstrations
  307. One-counter photon-arrival timer
  308. Channeled spectrum liquid refractometer