Dispersion Compensating Fiber Module
... necessary for the enhancement of signal-to-noise ratio. However, high input power induces nonlinear effects in optical fiber and will cause distortion of optical signal. Specifically, stimulated Brillouin scattering (SBS) and self-phase modulation are the two major nonlinear effects to cause problem ...
... necessary for the enhancement of signal-to-noise ratio. However, high input power induces nonlinear effects in optical fiber and will cause distortion of optical signal. Specifically, stimulated Brillouin scattering (SBS) and self-phase modulation are the two major nonlinear effects to cause problem ...
Simple 3-D characterization of ultrashort laser pulses
... precisely the space-time distribution of a laser pulse. The basic idea is very simple: when a short optical pulse (necessarily composed of many frequencies) propagates through a dispersive medium, the group velocity dispersion changes the pulse duration. This change depends on the initial pulse dura ...
... precisely the space-time distribution of a laser pulse. The basic idea is very simple: when a short optical pulse (necessarily composed of many frequencies) propagates through a dispersive medium, the group velocity dispersion changes the pulse duration. This change depends on the initial pulse dura ...
P510/2 - Sharebility
... (d) (i) Write down the equation of a wave which will superpose with the wave in (b) above to form a stationary wave. (1 mark) (ii) Hence write down the equation of a stationary wave. (1 mark) (e) The curves in the diagram below represent two waves which are propagated in the same direction and along ...
... (d) (i) Write down the equation of a wave which will superpose with the wave in (b) above to form a stationary wave. (1 mark) (ii) Hence write down the equation of a stationary wave. (1 mark) (e) The curves in the diagram below represent two waves which are propagated in the same direction and along ...
Lens induced by stress in ... for high-pressure cells
... the optical measurement cell. IJsually, transmission of the required light and operation without breakage are the only important criteria for the windows.’ However, laser, interferometric, and nonlinear optical measurements can impose additional, more stringent requirements on the windows. In partic ...
... the optical measurement cell. IJsually, transmission of the required light and operation without breakage are the only important criteria for the windows.’ However, laser, interferometric, and nonlinear optical measurements can impose additional, more stringent requirements on the windows. In partic ...
Atomic Spectroscopy
... As you will recall from earlier in this discussion, absorption lines used in atomic absorption analysis are due to transitions from the ground state to a higher energy level. Atoms in the excited state are generally unstable and will rapidly revert to the ground state, losing the acquired energy in ...
... As you will recall from earlier in this discussion, absorption lines used in atomic absorption analysis are due to transitions from the ground state to a higher energy level. Atoms in the excited state are generally unstable and will rapidly revert to the ground state, losing the acquired energy in ...
Disordered one-‐dimensional photonic structures composed by
... been established to fabricate photonic crystals at diverse length scales. as layer-‐by-‐layer stacking techniques using microfabrication tools [7–9], electrochemical etching [10,11], laser-‐ beam-‐scanning chemical ...
... been established to fabricate photonic crystals at diverse length scales. as layer-‐by-‐layer stacking techniques using microfabrication tools [7–9], electrochemical etching [10,11], laser-‐ beam-‐scanning chemical ...
The Graduate School Eberly College of Science
... In this dissertation, we describe a variety of experiments having application to ultra-cold atomic gases. While the majority of the experimental results focus on the development of a novel laser source for cooling and manipulating a gas of fermionic 6 Li atoms, we also report on a preliminary invest ...
... In this dissertation, we describe a variety of experiments having application to ultra-cold atomic gases. While the majority of the experimental results focus on the development of a novel laser source for cooling and manipulating a gas of fermionic 6 Li atoms, we also report on a preliminary invest ...
Investigation of the presence of rod-shaped bacteria on food surface
... were conducted in air using a tapping mode and an OTESPA (Veeco) cantilever operating at 322 KHz where the scans were collected at a rate of 1 Hz. Dehydration issues were addressed by eliminating the optical microscopy light and minimizing the length of experiments. A fresh tomato was cut at approxi ...
... were conducted in air using a tapping mode and an OTESPA (Veeco) cantilever operating at 322 KHz where the scans were collected at a rate of 1 Hz. Dehydration issues were addressed by eliminating the optical microscopy light and minimizing the length of experiments. A fresh tomato was cut at approxi ...
Detection of Fluorescence from Single Molecules
... molecules with laser light and detects the resulting emission with single fluorophore resolution. The system is based around a commercial inverted microscope, though the excitation laser and the detector are both external to the microscope. To achieve the extremely high signal-to-noise ratio require ...
... molecules with laser light and detects the resulting emission with single fluorophore resolution. The system is based around a commercial inverted microscope, though the excitation laser and the detector are both external to the microscope. To achieve the extremely high signal-to-noise ratio require ...
Robot Formations Motion Planning using Fast Marching
... fields between formation vehicles, some of them virtual leaders. The nominal inter-vehicle distance corresponds to minima of the potential functions, representing equilibrium points that balance inter-vehicle repulsion, vehicle-obstacle repulsion, and follower-leader attraction. MacArthur and Crane ...
... fields between formation vehicles, some of them virtual leaders. The nominal inter-vehicle distance corresponds to minima of the potential functions, representing equilibrium points that balance inter-vehicle repulsion, vehicle-obstacle repulsion, and follower-leader attraction. MacArthur and Crane ...
optical properties of biaxial minerals
... light rays vibrating perpendicular to each other have equal velocities, and have same RI’s, hence biaxial. RVS OF BIAXIAL CRYSTALS RVS is very complex double surface in 3-D (FIG. 7.1); so sections to this surface are studied initially. In biaxial crystals that belong to orthorhombic, monoclinic and ...
... light rays vibrating perpendicular to each other have equal velocities, and have same RI’s, hence biaxial. RVS OF BIAXIAL CRYSTALS RVS is very complex double surface in 3-D (FIG. 7.1); so sections to this surface are studied initially. In biaxial crystals that belong to orthorhombic, monoclinic and ...
Radiative Transfer Theory - UCL Department of Geography
... horizontal and vertically polarised waves is an important part of the remote sensing signal. For a linearly polarised wave, the cross-polarised response from a large conducting sphere is zero (Ulaby and Elachi, 1990; p. 34). In atmospheric LiDAR sensing, for instance, a measure of the degree of depo ...
... horizontal and vertically polarised waves is an important part of the remote sensing signal. For a linearly polarised wave, the cross-polarised response from a large conducting sphere is zero (Ulaby and Elachi, 1990; p. 34). In atmospheric LiDAR sensing, for instance, a measure of the degree of depo ...
IEEE J. Quantum Electron. 33, 970 (1997)
... exact results for (a) normalized optical output power, P , and (b) normalized defect density, x(t) = Nd (t)=Nd (0). The above results are calculated assuming that the quantum efficiency of the LED before aging is 0.5. (c) and (d) are the same as (a) and (b), except that = 0.8 . ...
... exact results for (a) normalized optical output power, P , and (b) normalized defect density, x(t) = Nd (t)=Nd (0). The above results are calculated assuming that the quantum efficiency of the LED before aging is 0.5. (c) and (d) are the same as (a) and (b), except that = 0.8 . ...
Fabrication of submicrometer 3D structures by one
... This work deals with a novel microscopy technique based on the ultra-low one-photon absorption (LOPA) mechanism of photosensitive materials for fabrication of arbitrary two- and three-dimensional (2D, 3D) submicrometer structures. First, we theoretically investigated the intensity distribution at fo ...
... This work deals with a novel microscopy technique based on the ultra-low one-photon absorption (LOPA) mechanism of photosensitive materials for fabrication of arbitrary two- and three-dimensional (2D, 3D) submicrometer structures. First, we theoretically investigated the intensity distribution at fo ...
Mirrors
... surface. The most common mirror is the plane mirror, whose surface is part of a plane. Another common mirror is the spherical mirror, whose surface is part of a sphere. (As we shall see, there are two types of spherical mirrors.) You might see a spherical mirror in an elevator or in a store where it ...
... surface. The most common mirror is the plane mirror, whose surface is part of a plane. Another common mirror is the spherical mirror, whose surface is part of a sphere. (As we shall see, there are two types of spherical mirrors.) You might see a spherical mirror in an elevator or in a store where it ...
Light & Matter: Absorption and Scattering
... • Much more complicated than absorption • Light is hardly observed from the source, but reaches our eyes indirectly through scattering • Inhomogeneity causes scattering; cloud, raindrop, etc. • Elastic (Rayleigh, Mie) or inelastic (Raman, Ramen) ...
... • Much more complicated than absorption • Light is hardly observed from the source, but reaches our eyes indirectly through scattering • Inhomogeneity causes scattering; cloud, raindrop, etc. • Elastic (Rayleigh, Mie) or inelastic (Raman, Ramen) ...
