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High-resolution Measurement of Refractive Index Based on Resonant Tunneling Effect
... refractive index are constantly appearing. Many devices based on different principles have been proposed, such as angular surveying instrument, interferometric testing apparatus, F-P interference sensor, all-fiber interferometers or resonators, and biochemical sensors [5]. However, they have also so ...
... refractive index are constantly appearing. Many devices based on different principles have been proposed, such as angular surveying instrument, interferometric testing apparatus, F-P interference sensor, all-fiber interferometers or resonators, and biochemical sensors [5]. However, they have also so ...
New approach to pulse propagation in nonlinear
... Propagation of optical pulses through nonlinear dispersive media is studied in many contexts ranging from optical communications [1] to ultrafast optics [2]. The usual starting point is the nonlinear Schrödinger (NLS) equation, obtained from Maxwell’s equations under the slowly varying envelope appr ...
... Propagation of optical pulses through nonlinear dispersive media is studied in many contexts ranging from optical communications [1] to ultrafast optics [2]. The usual starting point is the nonlinear Schrödinger (NLS) equation, obtained from Maxwell’s equations under the slowly varying envelope appr ...
Highly transmissive luminescent down
... Scattering by phosphor particles embedded in transparent silicones has been studied in depth within the field of solid-state lighting [12–20]. There are two main approaches to reduce the scattering in the layers: matching the refractive indices of the particles and the binder and using particles of ...
... Scattering by phosphor particles embedded in transparent silicones has been studied in depth within the field of solid-state lighting [12–20]. There are two main approaches to reduce the scattering in the layers: matching the refractive indices of the particles and the binder and using particles of ...
IOSR Journal of Electronics and Communication Engineering (IOSR-JECE)
... transmissions. To fulfill such huge demands optical transmission technology is required. Such systems can send 10 to 100 wavelengths per fiber with each wavelength modulated at 10Gb/s or more. In order to exploit the tremendous capacity provided by optical fiber, the switching functions must be impl ...
... transmissions. To fulfill such huge demands optical transmission technology is required. Such systems can send 10 to 100 wavelengths per fiber with each wavelength modulated at 10Gb/s or more. In order to exploit the tremendous capacity provided by optical fiber, the switching functions must be impl ...
S.72-227 Digital Communication Systems
... One should also estimate required margins with respect of temperature, aging and stability For rise-time budget one should take into account all the rise times in the link (tx, fiber, rx) If the link does not fit into specifications – more repeaters – change components – change specifications Often ...
... One should also estimate required margins with respect of temperature, aging and stability For rise-time budget one should take into account all the rise times in the link (tx, fiber, rx) If the link does not fit into specifications – more repeaters – change components – change specifications Often ...
Raman Spectroscopy - University of Arizona
... of the power of the initial light source. The laser has an electric field that is described by: E = Eocos(2πυext) where E0 is the amplitude of the wave (Skoog). There an induced dipole moment (m) when the electric field of the laser interacts with the molecule. m = αE = α Eocos(2πυext) and α is defi ...
... of the power of the initial light source. The laser has an electric field that is described by: E = Eocos(2πυext) where E0 is the amplitude of the wave (Skoog). There an induced dipole moment (m) when the electric field of the laser interacts with the molecule. m = αE = α Eocos(2πυext) and α is defi ...
- Welcome to UC Santa Barbara
... Due to high intensity, fs pulses can not be amplified as is. Recipe for the amplification: Chirped pulse amplifier (CPA) • Stretch the pulse in time, thus reducing the peak power (I = J / tpulse !) (typically the pulse is stretched up to hundreds of ps) • Amplify the stretched pulse • Compress the p ...
... Due to high intensity, fs pulses can not be amplified as is. Recipe for the amplification: Chirped pulse amplifier (CPA) • Stretch the pulse in time, thus reducing the peak power (I = J / tpulse !) (typically the pulse is stretched up to hundreds of ps) • Amplify the stretched pulse • Compress the p ...
L/f 1
... the compensator servers to make sure that the light going to either branch travels the same distance through the glass. The path length difference D=2d23-2d45 If the movable mirror moves by /2, D changes by and the interference pattern is shifted by 1 fringe. Insertion of a material with ...
... the compensator servers to make sure that the light going to either branch travels the same distance through the glass. The path length difference D=2d23-2d45 If the movable mirror moves by /2, D changes by and the interference pattern is shifted by 1 fringe. Insertion of a material with ...
femtosecond laser - UCSB - Optical Characterization Lab
... Due to high intensity, fs pulses can not be amplified as is. Recipe for the amplification: Chirped pulse amplifier (CPA) • Stretch the pulse in time, thus reducing the peak power (I = J / tpulse !) (typically the pulse is stretched up to hundreds of ps) • Amplify the stretched pulse • Compress the p ...
... Due to high intensity, fs pulses can not be amplified as is. Recipe for the amplification: Chirped pulse amplifier (CPA) • Stretch the pulse in time, thus reducing the peak power (I = J / tpulse !) (typically the pulse is stretched up to hundreds of ps) • Amplify the stretched pulse • Compress the p ...
Review Article Nanostructures for Enhanced Light Absorption in
... Nanoparticles on a thin film of a high refractive index semiconductor may couple impingent light into waveguided modes propagating in the film. In this way, the lateral extension of the semiconductor defines its optical thickness while the vertical extension defines its physical. Hence the correlati ...
... Nanoparticles on a thin film of a high refractive index semiconductor may couple impingent light into waveguided modes propagating in the film. In this way, the lateral extension of the semiconductor defines its optical thickness while the vertical extension defines its physical. Hence the correlati ...
Test - Wave Optics
... An optical medium is characterized by a quantity n I, called the refraetive index. The refractive index is the ratio of the speed of light in free space c , to that in the medium c. Therefore, the time taken by light to travel a distance d equals d/c = nd/c . It is thus proportional to the product n ...
... An optical medium is characterized by a quantity n I, called the refraetive index. The refractive index is the ratio of the speed of light in free space c , to that in the medium c. Therefore, the time taken by light to travel a distance d equals d/c = nd/c . It is thus proportional to the product n ...
Transfer of Light Helicity to Nanostructures
... To date, several researchers have intensely studied the interaction of structured light, such as radially polarized beams, with plasmonic or metallic structures [13–15]. However, these previous studies mostly focused on optical properties, such as mode selection, plasmon focusing, etc., of plasmonic ...
... To date, several researchers have intensely studied the interaction of structured light, such as radially polarized beams, with plasmonic or metallic structures [13–15]. However, these previous studies mostly focused on optical properties, such as mode selection, plasmon focusing, etc., of plasmonic ...
Telescopes
... Summary of Chapter 5 (cont.) • Resolution of ground-based optical telescopes is limited by atmospheric effects • Resolution of radio or space-based telescopes is limited by diffraction • Active and adaptive optics can minimize ...
... Summary of Chapter 5 (cont.) • Resolution of ground-based optical telescopes is limited by atmospheric effects • Resolution of radio or space-based telescopes is limited by diffraction • Active and adaptive optics can minimize ...
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.