Endoscopic low coherence topography measurement for upper airways and hollow samples
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The field of photonic crystals is a rapidly developing branch of modern optics. Photonic crystals are believed to be the cornerstone for a wide range of new photonic devices controlling the confinement and propagation of light. These artificial structures ...
Many biological tissues and a lot of technical objects of interest are to a certain degree transparent to light in the visible and near infrared wavelength range of the electromagnetic spectrum. Nevertheless, it has not been possible for a long time to cre ...
The inventive method for measuring the optical properties of transparent and/or diffusive objects (18), especially their reflection profile, uses two coupled interferometers. Said coupled interferometers are operated with two beams of different coherence l ...
An optical fibre sensing technique for the measurement of dynamic deformations using a Michelson interferometer is reported. The method applied to interferometers with an initial path unbalance of around 1 cm is based on the rf intensity modulation of a lo ...
A simple method for the calibration of optical path difference modulation in low-coherence interferometry is presented. Spectrally filtering a part of the detected interference signal results in a high-coherence signal that encodes the scan imperfections a ...
A new holographic technique combining digital holographic microscopy with the use of low coherence light has been developed and the potential of the resulting method for vision in turbid media and biomedical imaging has been evaluated. In digital holograph ...
Low coherence, digital holographic microscopy (LCDHM) is a new 3D imaging technique combining the advantages of digital holographic microscopy with those of reduced coherence interferometry. This gives the possibility to perform tomography of 3D objects wh ...
We report, to our knowledge, the first active channel waveguide in Ti:sapphire. We have created [similar to] 1.4-μm high ribs in a [similar to] 10-μm thick Ti:sapphire planar waveguide by reactive ion etching. Following excitation by an Ar-ion laser, the r ...
Optical Coherence Tomography (OCT) is a recent biomedical imaging technique based on low-coherence interferometry that is capable of acquiring depth-resolved reflectivity maps of scattering tissues with high sensitivity. The conventionally employed imaging ...
Optical Coherence Tomography (OCT), a well-established imaging method based on low-coherence interferometry, provides cross-sectional images of the internal structure of biological samples with a resolution in the micrometer range. OCT was successfully app ...