Athermal laser design
... the grating length Lg as shown in Eq. (5) where δ is simply the difference in effective indices of the two periodic grating sections neff1 and neff2. The Leff→Lg case is not shown in Fig. 5, which has fixed grating lengths of 250µm for all curves. This logical progression implies that ideally the pl ...
... the grating length Lg as shown in Eq. (5) where δ is simply the difference in effective indices of the two periodic grating sections neff1 and neff2. The Leff→Lg case is not shown in Fig. 5, which has fixed grating lengths of 250µm for all curves. This logical progression implies that ideally the pl ...
Techniques to Improve 3D Optical Imaging
... animal thereby reducing the amount of tissue light propagates through. A direct comparison showing that compression increases signal levels is shown. Reconstructions for a compressed and uncompressed animal models will be shown co-registered to μCT data for cross validation. Sensitivity of fluoresce ...
... animal thereby reducing the amount of tissue light propagates through. A direct comparison showing that compression increases signal levels is shown. Reconstructions for a compressed and uncompressed animal models will be shown co-registered to μCT data for cross validation. Sensitivity of fluoresce ...
289-1028-1
... basic media , followed by vacuum distillation to give phenolic products [4] . Information about the spectral dependence of optical parameters such as refractive index , dielectric constant , reflectivity and absorption coefficients are essential in the characterization of materials that are used in ...
... basic media , followed by vacuum distillation to give phenolic products [4] . Information about the spectral dependence of optical parameters such as refractive index , dielectric constant , reflectivity and absorption coefficients are essential in the characterization of materials that are used in ...
TITLE: Modal analysis of complex dielectric waveguides by rigorous
... ABSTRACT: Dielectric waveguides are important passive devices in optical communication systems. The dielectric ridge waveguide is the basic building block for integrated optics. By controlling the shape (width and depth, etc) of the ridge structure, one can also control the optical field concentrati ...
... ABSTRACT: Dielectric waveguides are important passive devices in optical communication systems. The dielectric ridge waveguide is the basic building block for integrated optics. By controlling the shape (width and depth, etc) of the ridge structure, one can also control the optical field concentrati ...
Medical Imaging Group Research Contributions/Areas
... deployable in real-time and computationally efficient. These efforts have led to 28 high impact international journal publications over the past seven years, where all of them have appeared in reputed journals in the area of biomedical optics. These can be found at: http://cds.iisc.ac.in/faculty/pha ...
... deployable in real-time and computationally efficient. These efforts have led to 28 high impact international journal publications over the past seven years, where all of them have appeared in reputed journals in the area of biomedical optics. These can be found at: http://cds.iisc.ac.in/faculty/pha ...
Optical amplifier
An optical amplifier is a device that amplifies an optical signal directly, without the need to first convert it to an electrical signal. An optical amplifier may be thought of as a laser without an optical cavity, or one in which feedback from the cavity is suppressed. Optical amplifiers are important in optical communication and laser physics.There are several different physical mechanisms that can be used to amplify a light signal, which correspond to the major types of optical amplifiers. In doped fibre amplifiers and bulk lasers, stimulated emission in the amplifier's gain medium causes amplification of incoming light. In semiconductor optical amplifiers (SOAs), electron-hole recombination occurs. In Raman amplifiers, Raman scattering of incoming light with phonons in the lattice of the gain medium produces photons coherent with the incoming photons. Parametric amplifiers use parametric amplification.