Baffle Design and Analysis of Stray-light in Multispectral Camera of
... The mechanical components of the camera structure as well as the baffle system are metallic material. A treatment of these surfaces for reduction of reflected light becomes necessary. Some types of special treatment and paints are available. In this baffle, we decide to chrome the internal surfaces ...
... The mechanical components of the camera structure as well as the baffle system are metallic material. A treatment of these surfaces for reduction of reflected light becomes necessary. Some types of special treatment and paints are available. In this baffle, we decide to chrome the internal surfaces ...
Fiber Optic Communications
... • Quantum Well Lasers – Better conversion efficiency, confinement, and wavelength availability ...
... • Quantum Well Lasers – Better conversion efficiency, confinement, and wavelength availability ...
DESIGN AND OPTIMIZATION OF TWO CHANNEL DROP
... crystal linear and ring waveguide cavities. One is a low refractive index waveguide with low contrast between core and clad. This type of waveguides has advantages such as low propagation loss, low coupling loss and low dispersion. A multichannel-drop filter using photonic crystal ring resonator is ...
... crystal linear and ring waveguide cavities. One is a low refractive index waveguide with low contrast between core and clad. This type of waveguides has advantages such as low propagation loss, low coupling loss and low dispersion. A multichannel-drop filter using photonic crystal ring resonator is ...
Hollow Retroreflectors Promote Precision Optical Alignment
... As another example, hollow retroreflectors better than 1 arc sec also are needed for high-resolution shortpath FTIR applications. Regardless of the rated accuracy of the retroreflector, proper mounting of the device to its interface is critical to eliminate any stress that has been induced on the mi ...
... As another example, hollow retroreflectors better than 1 arc sec also are needed for high-resolution shortpath FTIR applications. Regardless of the rated accuracy of the retroreflector, proper mounting of the device to its interface is critical to eliminate any stress that has been induced on the mi ...
No Slide Title
... Fluorescence detectors are among the most sensitive of HPLC detectors, and depending on the compound, can be from 10-1000 times more sensitive than UV detectors analyzing strong UV absorbing compounds. The fluorescence detector is based on the principle that some compounds fluoresce when bombarded w ...
... Fluorescence detectors are among the most sensitive of HPLC detectors, and depending on the compound, can be from 10-1000 times more sensitive than UV detectors analyzing strong UV absorbing compounds. The fluorescence detector is based on the principle that some compounds fluoresce when bombarded w ...
ULTRA-HIGH DENSITY OPTICAL DATA STORAGE P.R. Hemmer
... limited by the useful thickness. For example, the storage achievable in a 100 µm holograms is theoretically two orders of magnitude smaller than what can be achieved in a 1 cm thick hologram. Even within the current limits due to optical accessing architectures, it should be possible to store as muc ...
... limited by the useful thickness. For example, the storage achievable in a 100 µm holograms is theoretically two orders of magnitude smaller than what can be achieved in a 1 cm thick hologram. Even within the current limits due to optical accessing architectures, it should be possible to store as muc ...
Refractive Index and Thickness Analysis of Natural Silicon Dioxide
... between index and thickness for very thin films makes it not reasonable to use the refractive index of SiO2 bulk for a film with a thickness less than 10 nm, because it was known that the optical properties including the refractive index of ultrathin SiO2 films were different from those of thick fil ...
... between index and thickness for very thin films makes it not reasonable to use the refractive index of SiO2 bulk for a film with a thickness less than 10 nm, because it was known that the optical properties including the refractive index of ultrathin SiO2 films were different from those of thick fil ...
Slide 1
... Project aims: Developing numerical programmes to model performance of small optical devices (such as being used on computer chips) ; the software will become a simulation tool for the design of actual new devices. The aims are to improve existing methods in various ways, most notably in the topics o ...
... Project aims: Developing numerical programmes to model performance of small optical devices (such as being used on computer chips) ; the software will become a simulation tool for the design of actual new devices. The aims are to improve existing methods in various ways, most notably in the topics o ...
Download PDF
... the interaction between coherent or partially coherent waves and inhomogeneous media such as rough surfaces or multiple scattering volumes [4]. Understanding the rich behavior of the optical phase should be of paramount interest in the practice of imaging and scattering techniques dealing with the i ...
... the interaction between coherent or partially coherent waves and inhomogeneous media such as rough surfaces or multiple scattering volumes [4]. Understanding the rich behavior of the optical phase should be of paramount interest in the practice of imaging and scattering techniques dealing with the i ...
Porous Waveguide in the Kretschmann Configuration for Small Molecule Detection
... waveguide, the experimental results were matched with the theoretical calculations [10]. First, the optical thicknesses of the PSi and polymer were determined by matching the resonance angle position. Next, PSi absorption and scattering losses were included by allowing the imaginary part of the sili ...
... waveguide, the experimental results were matched with the theoretical calculations [10]. First, the optical thicknesses of the PSi and polymer were determined by matching the resonance angle position. Next, PSi absorption and scattering losses were included by allowing the imaginary part of the sili ...
A tutorial for designing fundamental imaging systems
... Specifications of optical system with imaging devices When we design optical systems, we need to decide specifications of optical systems. We need to decide following basic specifications, (1) Magnification and focal length, (2) Resolution and depth of focus. (1) Magnification and focal length We sh ...
... Specifications of optical system with imaging devices When we design optical systems, we need to decide specifications of optical systems. We need to decide following basic specifications, (1) Magnification and focal length, (2) Resolution and depth of focus. (1) Magnification and focal length We sh ...
Engineering Optics and Optical Techniques
... * o ~ 4 10 7 m kg / C 2 : magnetic permeability in vacuum…degree of measure of magnetic induction (B) for a given magnetic field strength (H), i.e., B H . **Ferro-magnetic materials have high values of permeability. [If interested in detailed analysis for the derivations of the above Maxw ...
... * o ~ 4 10 7 m kg / C 2 : magnetic permeability in vacuum…degree of measure of magnetic induction (B) for a given magnetic field strength (H), i.e., B H . **Ferro-magnetic materials have high values of permeability. [If interested in detailed analysis for the derivations of the above Maxw ...
Simulation of Optical Microfiber Loop Resonators for Ambient Refractive Index Sensing
... 3. Optimization of the Structural Parameters of the MLR for Ambient Refractive Index Sensing From (2), (3) and (4) we know that the sensing parameters sensitivity and detection limit are determined by several key structural parameters of the MLR: the radius of the microfiber a, the radius of the loo ...
... 3. Optimization of the Structural Parameters of the MLR for Ambient Refractive Index Sensing From (2), (3) and (4) we know that the sensing parameters sensitivity and detection limit are determined by several key structural parameters of the MLR: the radius of the microfiber a, the radius of the loo ...
4.6.2 Reflection, Refraction, Diffraction
... • For periods approaching half a wavelength strong effects on propagation leading to effects like superprism, slow light, negative refraction/diffraction, and selfcollimation • For a period equal to half the wavelength no light ...
... • For periods approaching half a wavelength strong effects on propagation leading to effects like superprism, slow light, negative refraction/diffraction, and selfcollimation • For a period equal to half the wavelength no light ...
Lecture_Interferometer
... 1. FP increases stored power in the arm 2. FP increases accumulation time of the signal => Above the roll-off, increasing F does not improve the response ...
... 1. FP increases stored power in the arm 2. FP increases accumulation time of the signal => Above the roll-off, increasing F does not improve the response ...
PT symmetry in optics
... The eigenvalues of the matrix in 3.3 are λ± = ±κ 1 − (γ/2κ)2 . The general solution can be written as (E1 , E2 ) = c1 exp(iλ+ z)u+ + c2 exp(iλ− z)u− , where u± are the eigenvectors and c1 and c2 are constants, which can be calculated from initial conditions. The behaviour of this non-Hermitian syste ...
... The eigenvalues of the matrix in 3.3 are λ± = ±κ 1 − (γ/2κ)2 . The general solution can be written as (E1 , E2 ) = c1 exp(iλ+ z)u+ + c2 exp(iλ− z)u− , where u± are the eigenvectors and c1 and c2 are constants, which can be calculated from initial conditions. The behaviour of this non-Hermitian syste ...
Optical Sources and Detectors
... lighting sources. The invention of laser has led to majority of its applications. It is, of course, the unique properties of the laser – monochromaticity, directionality, coherency, and brightness – that account for its wide acceptance and usefulness. The broad class of applications that involve the ...
... lighting sources. The invention of laser has led to majority of its applications. It is, of course, the unique properties of the laser – monochromaticity, directionality, coherency, and brightness – that account for its wide acceptance and usefulness. The broad class of applications that involve the ...
Silicon photonics
Silicon photonics is the study and application of photonic systems which use silicon as an optical medium. The silicon is usually patterned with sub-micrometre precision, into microphotonic components. These operate in the infrared, most commonly at the 1.55 micrometre wavelength used by most fiber optic telecommunication systems. The silicon typically lies on top of a layer of silica in what (by analogy with a similar construction in microelectronics) is known as silicon on insulator (SOI).Silicon photonic devices can be made using existing semiconductor fabrication techniques, and because silicon is already used as the substrate for most integrated circuits, it is possible to create hybrid devices in which the optical and electronic components are integrated onto a single microchip. Consequently, silicon photonics is being actively researched by many electronics manufacturers including IBM and Intel, as well as by academic research groups such as that of Prof. Michal Lipson, who see it is a means for keeping on track with Moore's Law, by using optical interconnects to provide faster data transfer both between and within microchips.The propagation of light through silicon devices is governed by a range of nonlinear optical phenomena including the Kerr effect, the Raman effect, two photon absorption and interactions between photons and free charge carriers. The presence of nonlinearity is of fundamental importance, as it enables light to interact with light, thus permitting applications such as wavelength conversion and all-optical signal routing, in addition to the passive transmission of light.Silicon waveguides are also of great academic interest, due to their ability to support exotic nonlinear optical phenomena such as soliton propagation.