Localized modes in two-dimensional Schroedinger lattices with a
... spontaneous symmetry breaking (SSB). A typical manifestation of the SSB is the transition from symmetric to asymmetric discrete solitons in the system of two parallel DNLS chains, with the transverse linear coupling applied uniformly [14] or at single pair of sites [15]. The corresponding bifurcatio ...
... spontaneous symmetry breaking (SSB). A typical manifestation of the SSB is the transition from symmetric to asymmetric discrete solitons in the system of two parallel DNLS chains, with the transverse linear coupling applied uniformly [14] or at single pair of sites [15]. The corresponding bifurcatio ...
Bimodal waveguide interferometer device based high sensitive biosensing
... SEM micrographs of a pillar-array microcavity and a photonic crystal microcavity. . . . . . . . . . . . . . . . . . . . . . . . . . . Scheme of a interferometer based on Mach-Zehnder configuration Cosine dependence of interferometric signals. . . . . . . . . . . . Optical arrangement and representat ...
... SEM micrographs of a pillar-array microcavity and a photonic crystal microcavity. . . . . . . . . . . . . . . . . . . . . . . . . . . Scheme of a interferometer based on Mach-Zehnder configuration Cosine dependence of interferometric signals. . . . . . . . . . . . Optical arrangement and representat ...
Guided modes of integrated optical guides. A mathematical study
... The magnetic permeability p and the dielectric permittivity 6 characterize the electromagnetic behaviour of the material. It is classicalin guided optics to assumethat p is a constant equal to ~0, the permeability of the vacuum. The permittivity 6 is related to the refractive index by the formula c ...
... The magnetic permeability p and the dielectric permittivity 6 characterize the electromagnetic behaviour of the material. It is classicalin guided optics to assumethat p is a constant equal to ~0, the permeability of the vacuum. The permittivity 6 is related to the refractive index by the formula c ...
Doppler-Free Spectroscopy MIT Department of Physics
... width of the sweep (the red knob), the sweep speed (small grey knob left of the multiturn potentiometer), and the sweep offset (the multiturn pot). A frequency sweep of approximately 10 GHz is possible, with periods from seconds to milliseconds. The SC100 has two outputs; one goes to the diode laser ...
... width of the sweep (the red knob), the sweep speed (small grey knob left of the multiturn potentiometer), and the sweep offset (the multiturn pot). A frequency sweep of approximately 10 GHz is possible, with periods from seconds to milliseconds. The SC100 has two outputs; one goes to the diode laser ...
Optical trapping and manipulation of neutral particles
... refract through the particle, giving rise to forces Fa and Fb in the direction of the momentum change. Because the intensity of ray ‘‘a’’ is higher than that of ray ‘‘b,’’ the force Fa is greater than Fb. Adding all such symmetrical pairs of rays striking the sphere, one sees that the net force can ...
... refract through the particle, giving rise to forces Fa and Fb in the direction of the momentum change. Because the intensity of ray ‘‘a’’ is higher than that of ray ‘‘b,’’ the force Fa is greater than Fb. Adding all such symmetrical pairs of rays striking the sphere, one sees that the net force can ...
Optical Comms 2004 (Summer)
... Loss mechanisms in a Silica Optical Fibre Intrinsic absorption loss: Intrinsic absorption is caused by the interaction of the light with one or more of the components of the glass itself. For silica glass there is a low loss window between 800 and 1600 nm where intrinsic absorption is negligible, by ...
... Loss mechanisms in a Silica Optical Fibre Intrinsic absorption loss: Intrinsic absorption is caused by the interaction of the light with one or more of the components of the glass itself. For silica glass there is a low loss window between 800 and 1600 nm where intrinsic absorption is negligible, by ...
Full Text PDF
... mixtures have been done from DMSO and pure water with different percentages P. The refractive index of those different mixtures has been measured at different temperatures. Each sample investigated was contained within a rectangular-quartz cell located in one of MZI's arms. The light source of the i ...
... mixtures have been done from DMSO and pure water with different percentages P. The refractive index of those different mixtures has been measured at different temperatures. Each sample investigated was contained within a rectangular-quartz cell located in one of MZI's arms. The light source of the i ...
Magnetic, optical, and magneto-optical properties of MnX „X As, Sb
... ~FLAPW! method,12 space is divided into an interstitial region ~IR! and nonoverlapping muffin-tin ~MT! spheres centered at the atomic sites. In the IR, the basis set consists of plane waves. Inside the MT spheres, the basis set is described by radial solutions of the one-particle Schrödinger equati ...
... ~FLAPW! method,12 space is divided into an interstitial region ~IR! and nonoverlapping muffin-tin ~MT! spheres centered at the atomic sites. In the IR, the basis set consists of plane waves. Inside the MT spheres, the basis set is described by radial solutions of the one-particle Schrödinger equati ...
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.