Laser Doppler Flowmetry - a Theoretical Framework
... be the cause of noticeable frequency shifts. Due to the numerous scattering events before hitting a red blood cell, the direction of the incoming propagation vector, ki, can usually be regarded as random compared to the direction of the blood flow. Laser Doppler measurements will thus, unlike ultras ...
... be the cause of noticeable frequency shifts. Due to the numerous scattering events before hitting a red blood cell, the direction of the incoming propagation vector, ki, can usually be regarded as random compared to the direction of the blood flow. Laser Doppler measurements will thus, unlike ultras ...
Biochemical sensors based on polymer microrings with sharp
... their large Q factors of resonance.2 These sensors rely on accurate measurement of the effective refractive index change due to the presence of biomolecules on the surface of sensing areas, or the presence of a solution surrounding the devices.3,4 Boyd and Heebner proposed that sensing can also rely ...
... their large Q factors of resonance.2 These sensors rely on accurate measurement of the effective refractive index change due to the presence of biomolecules on the surface of sensing areas, or the presence of a solution surrounding the devices.3,4 Boyd and Heebner proposed that sensing can also rely ...
ppt
... • Can do much better with better encoding • Low b/w channels: Sophisticated encoding, multiple bits per wavelength. • High b/w channels: Simpler encoding (FM, PCM, etc.), many wavelengths ...
... • Can do much better with better encoding • Low b/w channels: Sophisticated encoding, multiple bits per wavelength. • High b/w channels: Simpler encoding (FM, PCM, etc.), many wavelengths ...
Optical interconnection technology in switches, routers, and optical
... this way we get bit-parallel byte-serial transmission [32]. However, compensation for bit skew caused by group delay dispersion, where different wavelength channels travel at different speeds in the fiber, may be needed in these systems [33]. A dedicated wavelength in a bit-parallel WDM link can be ...
... this way we get bit-parallel byte-serial transmission [32]. However, compensation for bit skew caused by group delay dispersion, where different wavelength channels travel at different speeds in the fiber, may be needed in these systems [33]. A dedicated wavelength in a bit-parallel WDM link can be ...
Optical waveguide mode control by nanoslit-enhanced
... mode is beneficial mainly due to low losses, so that the required effect can be reached owing to the longer propagation (Lπ∕2 3.2 mm, D 0.54 mm at 425 THz). At high frequencies losses decrease more, because the mode is better concentrated in the dielectric As2 S3 . Losses for the x-polarized mod ...
... mode is beneficial mainly due to low losses, so that the required effect can be reached owing to the longer propagation (Lπ∕2 3.2 mm, D 0.54 mm at 425 THz). At high frequencies losses decrease more, because the mode is better concentrated in the dielectric As2 S3 . Losses for the x-polarized mod ...
Design and investigation of properties of nanocrystalline diamond
... micro/nanophotonics structures because of their unique properties as low absorption and scattering in wide spectral range, high thermal conductivity, high density, large Young’s modulus and high stability under extreme operating conditions [1–3]. The table value of the diamond refractive index is ap ...
... micro/nanophotonics structures because of their unique properties as low absorption and scattering in wide spectral range, high thermal conductivity, high density, large Young’s modulus and high stability under extreme operating conditions [1–3]. The table value of the diamond refractive index is ap ...
Birefringence in Optical Fibers: Applications
... ambient conditions, the output SOP also keeps fluctuating with time. The change in the output SOP is of little consequence in applications where the detected light is not sensitive to the polarization state. However, in many applications such as fiber optic interferometric sensors, coupling between ...
... ambient conditions, the output SOP also keeps fluctuating with time. The change in the output SOP is of little consequence in applications where the detected light is not sensitive to the polarization state. However, in many applications such as fiber optic interferometric sensors, coupling between ...
OPTI 511R, Spring 2015 Problem Set 8 Prof. E. M. Wright Due
... (Remember that the Hermite-Gaussian solutions are valid for free space as well as within a cavity.) Thus the beam will have a waist w0 that is the same as the waist of the occupied cavity mode, and that is located in the same position in space (at z = 0) as the cavity mode waist. The transverse prof ...
... (Remember that the Hermite-Gaussian solutions are valid for free space as well as within a cavity.) Thus the beam will have a waist w0 that is the same as the waist of the occupied cavity mode, and that is located in the same position in space (at z = 0) as the cavity mode waist. The transverse prof ...
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.