Quadratic solitons: recent developments
... , where is the wavelength, is formation scales as the effective second-order material nonlinear coefficient, and is the beam width. An analogous scaling holds for temporal solitons. Ideally, once a soliton has been generated, the energy exchange between the waves that parametrically interact in the ...
... , where is the wavelength, is formation scales as the effective second-order material nonlinear coefficient, and is the beam width. An analogous scaling holds for temporal solitons. Ideally, once a soliton has been generated, the energy exchange between the waves that parametrically interact in the ...
Bulk materials — — Part 1: Sampling and qualitative determination
... other products the concentrations of asbestos used were significantly lower and often between 1% and 15%. In some ceiling tile panels, the concentration of asbestos used was close to 1%. There are only a few known materials in which the asbestos concentration used was less than 1%. Some adhesives, s ...
... other products the concentrations of asbestos used were significantly lower and often between 1% and 15%. In some ceiling tile panels, the concentration of asbestos used was close to 1%. There are only a few known materials in which the asbestos concentration used was less than 1%. Some adhesives, s ...
EQUILIBRIUM MODE DISTRIBUTION IN W
... the group delay difference between modes be minimized by optimizing the fiber’s refractive index profile [11]. As modal attenuation, coupling and dispersion affect the transmission of the W-type optical fiber, methods for calculating their contributions are needed. The far-field pattern of an optica ...
... the group delay difference between modes be minimized by optimizing the fiber’s refractive index profile [11]. As modal attenuation, coupling and dispersion affect the transmission of the W-type optical fiber, methods for calculating their contributions are needed. The far-field pattern of an optica ...
Design of an integrated optical source of twin photons Ivan Avrutsky
... entangled photons. In bulk crystals, it can be achieved through compensation of chromatic dispersion by optical birefringence. Technically, this is realized through careful angular alignment and choice of the pump wave polarization. The phase-matching direction and polarizations of light waves are d ...
... entangled photons. In bulk crystals, it can be achieved through compensation of chromatic dispersion by optical birefringence. Technically, this is realized through careful angular alignment and choice of the pump wave polarization. The phase-matching direction and polarizations of light waves are d ...
Dielectric dispersion and microwave dielectric study of marbles in
... their heterogeneous composition. Similarly, in case of Rajsamand Marbles and Makarana marbles, specimens RS3 and MK3 have higher percentage of Fe2O3+Al2O3. From the comparative ε′ values (Fig. 1) with percentage of Fe2O3+Al2O3 in the specimen composition (Table 1), it can be concluded that the highe ...
... their heterogeneous composition. Similarly, in case of Rajsamand Marbles and Makarana marbles, specimens RS3 and MK3 have higher percentage of Fe2O3+Al2O3. From the comparative ε′ values (Fig. 1) with percentage of Fe2O3+Al2O3 in the specimen composition (Table 1), it can be concluded that the highe ...
WO3 nanosponge photoanodes with high applied
... Fig. 2a shows photographs of the WO3 nanoparticle dispersions. Dispersion D2, used to fabricate photoanode W2, was beige, and the dispersed nanoparticle size was evaluated by using a particle size analyzer to be mainly 264.1 nm in the range of 250–400 nm (Fig. 2b). This value indicates that the nano ...
... Fig. 2a shows photographs of the WO3 nanoparticle dispersions. Dispersion D2, used to fabricate photoanode W2, was beige, and the dispersed nanoparticle size was evaluated by using a particle size analyzer to be mainly 264.1 nm in the range of 250–400 nm (Fig. 2b). This value indicates that the nano ...
Few-layer MoS2 saturable absorbers for short
... can be sandwiched between two fiber patchcords in a fiber laser is to embed few-layer MoS2 flakes in a PVA polymer film [47,71–75]. Polymeric materials are an ideal choice of platform to integrate nanomaterials into photonic systems, as they are easily manipulated by methods such as embossing, stamp ...
... can be sandwiched between two fiber patchcords in a fiber laser is to embed few-layer MoS2 flakes in a PVA polymer film [47,71–75]. Polymeric materials are an ideal choice of platform to integrate nanomaterials into photonic systems, as they are easily manipulated by methods such as embossing, stamp ...
Engineering metal oxide nanostructures for the
... Metal oxides, amongst their many applications, are an important class of functional materials for chemical and bio sensing. Since the discovery of the sensing properties of these materials, a large variety of metal oxides and their doped variants have been extensively explored for highly sensitive c ...
... Metal oxides, amongst their many applications, are an important class of functional materials for chemical and bio sensing. Since the discovery of the sensing properties of these materials, a large variety of metal oxides and their doped variants have been extensively explored for highly sensitive c ...
Photonic Crystal Fibers
... temperature of the thinning process, the temperature distribution in the oven, centering of the preform guidance, the speed of feeding and pulling. These parameters determine the diameter of the fiber, the temperature distribution over its cross-section and the heating time. Most reports on PCFs hav ...
... temperature of the thinning process, the temperature distribution in the oven, centering of the preform guidance, the speed of feeding and pulling. These parameters determine the diameter of the fiber, the temperature distribution over its cross-section and the heating time. Most reports on PCFs hav ...
Laboratory experiments for exploring the surface plasmon resonance
... The strong differences between the two plots show that the electronic properties of gold cannot be satisfactorily described by the free electrons only. Therefore the following discussion will be based on the more realistic relation (a). Let us consider an external wave propagating in air (medium 2, ...
... The strong differences between the two plots show that the electronic properties of gold cannot be satisfactorily described by the free electrons only. Therefore the following discussion will be based on the more realistic relation (a). Let us consider an external wave propagating in air (medium 2, ...
THz generation by optical rectification of near
... which has a maximum of 2lc /π at l = loptimum = lc . If there is both phase-mismatch and absorption, lgen has a lower maximum than 2lc /π at l = loptimum < lc . The nonlinear absorption of the pump beam at very high pump intensities, which leads to smaller optimum crystal lengths is not included in ...
... which has a maximum of 2lc /π at l = loptimum = lc . If there is both phase-mismatch and absorption, lgen has a lower maximum than 2lc /π at l = loptimum < lc . The nonlinear absorption of the pump beam at very high pump intensities, which leads to smaller optimum crystal lengths is not included in ...
Negative Refraction and Left-handed electromagnetism in
... In conclusion we have experimentally demonstrated negative refraction in a new class of materials, metallic photonic crystals. The present work demonstrates the physical reality of negative refraction and its association with left-handed electromagnetism, thereby refuting the questions raised 5. A m ...
... In conclusion we have experimentally demonstrated negative refraction in a new class of materials, metallic photonic crystals. The present work demonstrates the physical reality of negative refraction and its association with left-handed electromagnetism, thereby refuting the questions raised 5. A m ...
this PDF file - Canadian Center of Science and Education
... and 3 are transparent whether layer 2 is absorbing or not. If light waves travelling in layer 1 hit its interface to coherent thin layer 2, multiple internal reflections inside it and their interference are significant. Part of waves will be reflected back into layer 1 and the other will be transmit ...
... and 3 are transparent whether layer 2 is absorbing or not. If light waves travelling in layer 1 hit its interface to coherent thin layer 2, multiple internal reflections inside it and their interference are significant. Part of waves will be reflected back into layer 1 and the other will be transmit ...
2 Ultrafast Lasers and Amplifiers
... There are two points to notice. Firstly, the center of the pulse is delayed with respect to a pulse traveling in air. This is usually called the group delay, which is not a broadening effect. Secondly, normally-dispersive media like glass impose a positive frequency sweep or “chirp” on the pulse mea ...
... There are two points to notice. Firstly, the center of the pulse is delayed with respect to a pulse traveling in air. This is usually called the group delay, which is not a broadening effect. Secondly, normally-dispersive media like glass impose a positive frequency sweep or “chirp” on the pulse mea ...
Toward single-cycle laser systems
... chirped mirrors [13], the equivalent of chirped fiber Bragg gratings, which at that time were already well-developed components in fiber optics [34]. When the Bragg wavelength of the mirror stack is varied slowly enough and no limitation on the number of layer pairs exists, an arbitrarily broad-band ...
... chirped mirrors [13], the equivalent of chirped fiber Bragg gratings, which at that time were already well-developed components in fiber optics [34]. When the Bragg wavelength of the mirror stack is varied slowly enough and no limitation on the number of layer pairs exists, an arbitrarily broad-band ...
Theoretical prediction of the nondiffractive propagation of sonic
... achieved, leading to the so-called self-collimating, or nondiffractive light beams. These studies consist of the initial proposal of the idea of self-collimation,8 of its experimental demonstration,8,9 the issues of light coupling to the selfcollimating crystal,10 the calculation of asymptotic 共long ...
... achieved, leading to the so-called self-collimating, or nondiffractive light beams. These studies consist of the initial proposal of the idea of self-collimation,8 of its experimental demonstration,8,9 the issues of light coupling to the selfcollimating crystal,10 the calculation of asymptotic 共long ...
Chemistry - Chap 12 Homework Answers 2014
... b) motion rapid; random; travel in straight line, collisions are elastic c) energy high energy 2. Compare the density and compressibility of gases versus liquids and solids. solid, liquids = noncompressible. high density. gases = compressible and low density 3. Why is nearly seven times more energy ...
... b) motion rapid; random; travel in straight line, collisions are elastic c) energy high energy 2. Compare the density and compressibility of gases versus liquids and solids. solid, liquids = noncompressible. high density. gases = compressible and low density 3. Why is nearly seven times more energy ...
Application of chirped ultrashort pulses for generating large
... timing of consecutive ultrashort excitation pulses. 9 While the second of these approaches may be easier to visualize, both schemes are aimed at using the favorable interference of material waves, which are induced by the coherence properties of the exciting fields, on the reactive surface in order ...
... timing of consecutive ultrashort excitation pulses. 9 While the second of these approaches may be easier to visualize, both schemes are aimed at using the favorable interference of material waves, which are induced by the coherence properties of the exciting fields, on the reactive surface in order ...
using standard syste
... In conclusion, we have demonstrated a mechanism to manipulate propagation of EM waves in 3D photonic crystals. Photons hop from one evanescent defect mode to the next one, regardless of the direction of propagation. A complete 共near 100%兲 transmission of the EM wave along a straight path and around ...
... In conclusion, we have demonstrated a mechanism to manipulate propagation of EM waves in 3D photonic crystals. Photons hop from one evanescent defect mode to the next one, regardless of the direction of propagation. A complete 共near 100%兲 transmission of the EM wave along a straight path and around ...
Chapter 5
... Again, because of dispersion in any medium these relations can only be met under the special conditions of anisotropic crystals with a tunable index; and again we distinguish between Type I and II phase-matching conditions. For example: 1 and 2 are ordinary waves with index, respectively n1o and n ...
... Again, because of dispersion in any medium these relations can only be met under the special conditions of anisotropic crystals with a tunable index; and again we distinguish between Type I and II phase-matching conditions. For example: 1 and 2 are ordinary waves with index, respectively n1o and n ...
Answer Sheet to Review Questions
... Answers to 113-116 in Review Book (RED BOOK WITH GRAINY BLUE/BLACK PICTURES) Answers: ...
... Answers to 113-116 in Review Book (RED BOOK WITH GRAINY BLUE/BLACK PICTURES) Answers: ...
lecture 2 Fiber properties
... Material Dispersion Arises from variations of the refractive index of the core material as a function of wavelength Spreading of a light pulse is dependent on the wavelengths interaction with the refractive index of the fiber core Different wavelengths travel at different speeds in the fiber ...
... Material Dispersion Arises from variations of the refractive index of the core material as a function of wavelength Spreading of a light pulse is dependent on the wavelengths interaction with the refractive index of the fiber core Different wavelengths travel at different speeds in the fiber ...
Weak Interactions
... This induces a dipole on the neighbouring atom (temporarily) The force between these two dipoles is called the London dispersion forces The force is very weak and is temporally varying Can operate between non-polar molecules (H2, Cl2, CO2 etc.) The strength of the dispersion forces will in ...
... This induces a dipole on the neighbouring atom (temporarily) The force between these two dipoles is called the London dispersion forces The force is very weak and is temporally varying Can operate between non-polar molecules (H2, Cl2, CO2 etc.) The strength of the dispersion forces will in ...
Polarizability
... Dispersion Influence The strength of a dispersion force depends on the ease with which the charge distribution in a molecule can be distorted. ...
... Dispersion Influence The strength of a dispersion force depends on the ease with which the charge distribution in a molecule can be distorted. ...
Dispersion (optics)
In optics, dispersion is the phenomenon in which the phase velocity of a wave depends on its frequency.Media having this common property may be termed dispersive media. Sometimes the term chromatic dispersion is used for specificity.Although the term is used in the field of optics to describe light and other electromagnetic waves, dispersion in the same sense can apply to any sort of wave motion such as acoustic dispersion in the case of sound and seismic waves, in gravity waves (ocean waves), and for telecommunication signals propagating along transmission lines (such as coaxial cable) or optical fiber.In optics, one important and familiar consequence of dispersion is the change in the angle of refraction of different colors of light, as seen in the spectrum produced by a dispersive prism and in chromatic aberration of lenses. Design of compound achromatic lenses, in which chromatic aberration is largely cancelled, uses a quantification of a glass's dispersion given by its Abbe number V, where lower Abbe numbers correspond to greater dispersion over the visible spectrum. In some applications such as telecommunications, the absolute phase of a wave is often not important but only the propagation of wave packets or ""pulses""; in that case one is interested only in variations of group velocity with frequency, so-called group-velocity dispersion (GVD).