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Efficient Computation of Photonic Crystal Waveguide Modes with
... PhC waveguide [3], which is beneficial for all devices based on intensity dependent phenomena (e. g. nonlinear optics) [4]. The tailoring of the dispersion of guided modes to obtain slow light modes with low group velocity dispersion by slightly modifying the PhC waveguide has been demonstrated by L ...
... PhC waveguide [3], which is beneficial for all devices based on intensity dependent phenomena (e. g. nonlinear optics) [4]. The tailoring of the dispersion of guided modes to obtain slow light modes with low group velocity dispersion by slightly modifying the PhC waveguide has been demonstrated by L ...
Birefringence dispersion in fused silica for DUV lithography
... Birefringence measurements of stepper lens blanks, for example, are typically measured at 633nm using a Helium Neon laser source. However, knowledge of the correlating DUV birefringence values is needed for determining the acceptable magnitude of birefringence in the material and for predicting the ...
... Birefringence measurements of stepper lens blanks, for example, are typically measured at 633nm using a Helium Neon laser source. However, knowledge of the correlating DUV birefringence values is needed for determining the acceptable magnitude of birefringence in the material and for predicting the ...
WIND-INTERACTION MODELS FOR THE EARLY AFTERGLOWS
... much earlier time than the break in GRB 021004), a higher optical flux at late times after the break, and a bright, long-lived radio afterglow. The early emission from GRB 990123 was convincingly interpreted as coming from the reverse shock of a blast wave expanding into an ISM (Sari & Piran 1999; M ...
... much earlier time than the break in GRB 021004), a higher optical flux at late times after the break, and a bright, long-lived radio afterglow. The early emission from GRB 990123 was convincingly interpreted as coming from the reverse shock of a blast wave expanding into an ISM (Sari & Piran 1999; M ...
Lens induced by stress in ... for high-pressure cells
... where P,, is the Legendre polynomial of order m, generates the hydrostatic solution in which the stress and strain tensors are diagonal, isotropic, and uniform with components --p. and ( -p,JE) ( l --2v), respectively. In the case that the loading is not hydrostatic along the bottom boundary, the de ...
... where P,, is the Legendre polynomial of order m, generates the hydrostatic solution in which the stress and strain tensors are diagonal, isotropic, and uniform with components --p. and ( -p,JE) ( l --2v), respectively. In the case that the loading is not hydrostatic along the bottom boundary, the de ...
Nonlinear Phase Noise in Fiber Optical Communication
... and Quadrature Amplitude Modulation (QAM) in wireless and land line communications have attracted significant importance as new alternatives to boost the capacity of fiber optical communication systems. But with every new alternative come new limitations. Fiber optical communication channels are lim ...
... and Quadrature Amplitude Modulation (QAM) in wireless and land line communications have attracted significant importance as new alternatives to boost the capacity of fiber optical communication systems. But with every new alternative come new limitations. Fiber optical communication channels are lim ...
MS Word 97 - Vadim Makarov
... We live in the world of information. Over the last century it became obvious that nothing is as valuable as information. In the last several decades with the growth of Internet there was a big breakthrough in the field of information interchange. A huge amounts of data is being sent every day. It is ...
... We live in the world of information. Over the last century it became obvious that nothing is as valuable as information. In the last several decades with the growth of Internet there was a big breakthrough in the field of information interchange. A huge amounts of data is being sent every day. It is ...
A simple method for Bragg diffraction in volume holographic gratings Heifetz,
... Volume holographic gratings are routinely used in optical physics. Holographic data storage and optical information processing systems based on volume gratings are currently under development.1–5 Other applications include polarization optics,6–8 beam splitters and combiners,9,10 narrowband spectral ...
... Volume holographic gratings are routinely used in optical physics. Holographic data storage and optical information processing systems based on volume gratings are currently under development.1–5 Other applications include polarization optics,6–8 beam splitters and combiners,9,10 narrowband spectral ...
Coating Materials - Umicore Thin Film Products
... the stability of the tablet. Extreme differences in temperature within a tablet during electron beam evaporation lead to significant heat stress. In such cases cracks in the tablet can not be completely avoided, and disintegration can only be prevented by keeping the porosity of the tablet sufficien ...
... the stability of the tablet. Extreme differences in temperature within a tablet during electron beam evaporation lead to significant heat stress. In such cases cracks in the tablet can not be completely avoided, and disintegration can only be prevented by keeping the porosity of the tablet sufficien ...
Quadratic solitons: recent developments
... soliton formation mediated by parametric wave interactions in crystals with quadratic nonlinearities [1], [2], which were theoretically predicted for the first time in the 1970s [3], opened a whole new area of possibilities in soliton science and its applications. For many years, second-order or qua ...
... soliton formation mediated by parametric wave interactions in crystals with quadratic nonlinearities [1], [2], which were theoretically predicted for the first time in the 1970s [3], opened a whole new area of possibilities in soliton science and its applications. For many years, second-order or qua ...
Applied Fiber Optic Measurement for Geohydraulic Engineering
... sensing system detects either anti-Stroke Raman scatter or Brillouin scatter. The authors have shown, that the spatial resolution of an OTDR can be much higher than commonly assumed, particularly if strong reflections from reflective points are monitored. A better ranging system has been described, ...
... sensing system detects either anti-Stroke Raman scatter or Brillouin scatter. The authors have shown, that the spatial resolution of an OTDR can be much higher than commonly assumed, particularly if strong reflections from reflective points are monitored. A better ranging system has been described, ...
de Sénarmont Bias Retardation in DIC Microscopy Introduction
... This effect occurs because shear takes place at the quartzair interface in the lower prism wedge instead at the cemented boundary, as in a Wollaston prism. Refraction at the interface between the quartz wedges in a Nomarski prism causes the sheared wavefronts to converge with a crossover point outsi ...
... This effect occurs because shear takes place at the quartzair interface in the lower prism wedge instead at the cemented boundary, as in a Wollaston prism. Refraction at the interface between the quartz wedges in a Nomarski prism causes the sheared wavefronts to converge with a crossover point outsi ...
[pdf]
... coefficient remained constant ( ⬘s ⫽10 cm⫺1 ) whereas optical absorption, a , was assumed to be zero. In this case, motionless scatterers extruded the moving scattering particles out of the perfused volume, leading to the reduction of a number of scattering events. This resulted in the narrowing ...
... coefficient remained constant ( ⬘s ⫽10 cm⫺1 ) whereas optical absorption, a , was assumed to be zero. In this case, motionless scatterers extruded the moving scattering particles out of the perfused volume, leading to the reduction of a number of scattering events. This resulted in the narrowing ...
RAY OPTICS
... Light is an electromagnetic wave phenomenon described by the same theoretical principles that govern all forms of electromagnetic radiation. Electromagnetic radiation propagates in the form of two mutually coupled vector waves, an electric-field wave and a magnetic-field wave. Nevertheless, it is p ...
... Light is an electromagnetic wave phenomenon described by the same theoretical principles that govern all forms of electromagnetic radiation. Electromagnetic radiation propagates in the form of two mutually coupled vector waves, an electric-field wave and a magnetic-field wave. Nevertheless, it is p ...
PDF
... vortex lines in electron beams8 are hard to obtain and study but often can be understood by probing defects in other topologically similar but more easily accessible systems, such as LCs and laser beams1–5,8,14. A nematic LC is typically comprised of rod-like molecules that spontaneously orient them ...
... vortex lines in electron beams8 are hard to obtain and study but often can be understood by probing defects in other topologically similar but more easily accessible systems, such as LCs and laser beams1–5,8,14. A nematic LC is typically comprised of rod-like molecules that spontaneously orient them ...
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.