Sample Pages
... Light emission occurs as a result of interaction between light and matter. Let us assume a two-level atom with levels 1 (ground state) and 2 (excited state). The energies of the ground and excited states are E1 and E2 , respectively, and the energy difference is therefore given by the difference E1 ...
... Light emission occurs as a result of interaction between light and matter. Let us assume a two-level atom with levels 1 (ground state) and 2 (excited state). The energies of the ground and excited states are E1 and E2 , respectively, and the energy difference is therefore given by the difference E1 ...
Module 6: Attenuation in Optical Fibers
... presence of defects in the glass structure (e.g. vacancies, over/under coordinated atoms) and/or dopants and impurities can produce localized energy states that exist within the forbidden gap. The presence of such states, thus, enables optical absorption at frequencies within the transmission window ...
... presence of defects in the glass structure (e.g. vacancies, over/under coordinated atoms) and/or dopants and impurities can produce localized energy states that exist within the forbidden gap. The presence of such states, thus, enables optical absorption at frequencies within the transmission window ...
Interfacing single photons and condensed
... studying the bulk properties of both IQHE and FQHE states: ...
... studying the bulk properties of both IQHE and FQHE states: ...
Angle Resolved Scattering Combined with Optical Profilometry as
... wide range angles higher than 45 . In SALS type of measurements incident angle θi is close to zero and scattered ...
... wide range angles higher than 45 . In SALS type of measurements incident angle θi is close to zero and scattered ...
Engineering metal oxide nanostructures for the
... refractive index responses and can be combined with fiber Bragg gratings [16, 17]. When metallic coatings such as palladium or palladium and metal oxide composites are introduced with Bragg gratings, these act as strain transducers also exerting modifications on the grating peak [18, 30]. When long ...
... refractive index responses and can be combined with fiber Bragg gratings [16, 17]. When metallic coatings such as palladium or palladium and metal oxide composites are introduced with Bragg gratings, these act as strain transducers also exerting modifications on the grating peak [18, 30]. When long ...
9223_fel - Stanford Synchrotron Radiation Lightsource
... for a bandpass that just corresponds to the zero bandwidth pulse duration, 6 fs. A possible scheme uses a crystal (Si) monochrometer where the crystals are cut asymmetrically to increase the energy acceptance. By adjusting the asymmetry, the Si (111) reflection can be tuned to match that needed to s ...
... for a bandpass that just corresponds to the zero bandwidth pulse duration, 6 fs. A possible scheme uses a crystal (Si) monochrometer where the crystals are cut asymmetrically to increase the energy acceptance. By adjusting the asymmetry, the Si (111) reflection can be tuned to match that needed to s ...
Physics 218: Electricity and Magnetism II
... which seems a little too heavy on electromagnetic radiation and too light on electrostatics and magnetostatics to use as a textbook for PHY 217, but will be a useful reference here in PHY 218. It is also the only good junior-level textbook that uses CGS units. ...
... which seems a little too heavy on electromagnetic radiation and too light on electrostatics and magnetostatics to use as a textbook for PHY 217, but will be a useful reference here in PHY 218. It is also the only good junior-level textbook that uses CGS units. ...
Density Functional Calculation - Gazi University Journal of Science
... means that deep-lying valence orbitals do not paticipate in the interband transitions (see Figure 4) The effective optical dielectric constant, eff , shown in Figure 7, reaches a saturation value at about 16 eV . The photon-energy dependence of eff can be separated into two regions. The first i ...
... means that deep-lying valence orbitals do not paticipate in the interband transitions (see Figure 4) The effective optical dielectric constant, eff , shown in Figure 7, reaches a saturation value at about 16 eV . The photon-energy dependence of eff can be separated into two regions. The first i ...
As the name suggests, the VCS10 uses voice coil technology to
... on a current carrying conductor when placed in a magnetic field. By applying a voltage across the leads of the coil, the magnetic field produces a force on the moving member, creating linear motion. Because the force is proportional to the current applied, good control can be achieved. The voice coi ...
... on a current carrying conductor when placed in a magnetic field. By applying a voltage across the leads of the coil, the magnetic field produces a force on the moving member, creating linear motion. Because the force is proportional to the current applied, good control can be achieved. The voice coi ...
Topic Contribution to Silicon High Impedance and High Frequency
... with much smaller objects (micrometres to nanometres) is emerging as a fascinating and exciting field of research and technology development. In these conditions the near field properties of microwaves (relevant at distances several times smaller than their wave length) together with the relevance o ...
... with much smaller objects (micrometres to nanometres) is emerging as a fascinating and exciting field of research and technology development. In these conditions the near field properties of microwaves (relevant at distances several times smaller than their wave length) together with the relevance o ...
Slides - Indico
... Metamaterials are also currently a basis for building a cloaking device. A possibility of a working invisibility cloak was demonstrated in 2006 [1]. Following this result, an intense research work has been spent in order to build a cloaking device at optical frequencies [2 - 4]. ...
... Metamaterials are also currently a basis for building a cloaking device. A possibility of a working invisibility cloak was demonstrated in 2006 [1]. Following this result, an intense research work has been spent in order to build a cloaking device at optical frequencies [2 - 4]. ...
Optial fiber - BSNL Durg SSA(Connecting India)
... For the effective use of Optical Fiber, it would be necessary to detect and localize the fiber failures without delay, and the technique used to detect and localize the fiber failures is known as Localization. In general, an optical time-domain reflectometer (OTDR) has been used to localize fiber f ...
... For the effective use of Optical Fiber, it would be necessary to detect and localize the fiber failures without delay, and the technique used to detect and localize the fiber failures is known as Localization. In general, an optical time-domain reflectometer (OTDR) has been used to localize fiber f ...
Ground-plane quasicloaking for free space
... becomes much smaller than the dimensions of the cloak’s block elements. This is illustrated by launching an identical 4.7 fs long pulse at 1600 THz frequency towards the cloak, and obtaining the reflected spectra as before, which are shown in Fig. 3(c). It is observed that the simplified 4 ×2 quasi- ...
... becomes much smaller than the dimensions of the cloak’s block elements. This is illustrated by launching an identical 4.7 fs long pulse at 1600 THz frequency towards the cloak, and obtaining the reflected spectra as before, which are shown in Fig. 3(c). It is observed that the simplified 4 ×2 quasi- ...
Cerenkov radiation in photonic crystals
... • How to generate shocks for experiments: Physical shocks will do, and velocities work even for nonrelativistic cases (~104 m/s). • Also, the dielectric constant can be modulated in a shock-like manner by non-mechanical means using materials with nonlinear optical response. ...
... • How to generate shocks for experiments: Physical shocks will do, and velocities work even for nonrelativistic cases (~104 m/s). • Also, the dielectric constant can be modulated in a shock-like manner by non-mechanical means using materials with nonlinear optical response. ...
CaF Lenses 2
... Technology (NIST, Gaithersburg, Md.), reported that CaF2 suffers from an unexpected intrinsic birefringence at 157 nm. Its birefringence has been measured at ~11 nm/cm, much larger than the ~1 nm/cm birefringence that 157 nm lithography can handle. Such birefringence would cause significant wavefron ...
... Technology (NIST, Gaithersburg, Md.), reported that CaF2 suffers from an unexpected intrinsic birefringence at 157 nm. Its birefringence has been measured at ~11 nm/cm, much larger than the ~1 nm/cm birefringence that 157 nm lithography can handle. Such birefringence would cause significant wavefron ...
electromagnetic waves - Effingham County Schools
... Even though radio waves carry information that a radio uses to create sound, you can’t hear radio waves. You hear a sound wave when the compressions and rarefactions the sound wave produces reach your ears. A radio wave does not produce compressions and rarefactions as it travels through air. Radio ...
... Even though radio waves carry information that a radio uses to create sound, you can’t hear radio waves. You hear a sound wave when the compressions and rarefactions the sound wave produces reach your ears. A radio wave does not produce compressions and rarefactions as it travels through air. Radio ...
electromagnetic waves - Effingham County Schools
... Even though radio waves carry information that a radio uses to create sound, you can’t hear radio waves. You hear a sound wave when the compressions and rarefactions the sound wave produces reach your ears. A radio wave does not produce compressions and rarefactions as it travels through air. Radio ...
... Even though radio waves carry information that a radio uses to create sound, you can’t hear radio waves. You hear a sound wave when the compressions and rarefactions the sound wave produces reach your ears. A radio wave does not produce compressions and rarefactions as it travels through air. Radio ...
SIXTH FRAMEWORK PROGRAMME
... (CZTS, Eg ≈ 1.5 eV) [1-2]. Despite a rapid progress achieved by different groups in a short time, many aspects are not well understood yet in terms of material properties and working mechanisms of the device. Optical and electrical modelling and simulations can be a powerful tool to overcome this ga ...
... (CZTS, Eg ≈ 1.5 eV) [1-2]. Despite a rapid progress achieved by different groups in a short time, many aspects are not well understood yet in terms of material properties and working mechanisms of the device. Optical and electrical modelling and simulations can be a powerful tool to overcome this ga ...
IOSR Journal of Applied Physics (IOSR-JAP) e-ISSN: 2278-4861.
... vision sensor devices [17]. The nonlinear refractive index is found to be - 2.68 x10-13 cm /W. The open aperture transmittance data confirmed the saturable absorption by the doped ADP crystal depicted in Fig 9. The open aperture transmittance data was employed to evaluate the nonlinear absorption co ...
... vision sensor devices [17]. The nonlinear refractive index is found to be - 2.68 x10-13 cm /W. The open aperture transmittance data confirmed the saturable absorption by the doped ADP crystal depicted in Fig 9. The open aperture transmittance data was employed to evaluate the nonlinear absorption co ...
Polarization controllable Fresnel lens using dye
... subsequently gently buffed. The strong anchoring energy of the rubbed surface of the bottom slide induced a homogeneous liquid crystal layer to be formed [2] The process of fabricating a polarization controllable dye-doped liquid crystal Fresnel lens is much simpler than the microstructuring techni ...
... subsequently gently buffed. The strong anchoring energy of the rubbed surface of the bottom slide induced a homogeneous liquid crystal layer to be formed [2] The process of fabricating a polarization controllable dye-doped liquid crystal Fresnel lens is much simpler than the microstructuring techni ...
Optical band-gap determination of nanostructured
... The optical band-gap energy of a nanostructured tungsten trioxide film is determined using the photoacoustic spectroscopy method under continuous light excitation. The mechanism of the photoacoustic signal generation is discussed. The band-gap energy is also computed by other methods. The absorption ...
... The optical band-gap energy of a nanostructured tungsten trioxide film is determined using the photoacoustic spectroscopy method under continuous light excitation. The mechanism of the photoacoustic signal generation is discussed. The band-gap energy is also computed by other methods. The absorption ...