Electron beam lithography of microbowtie structures for next
... bowtie antenna intercepts the incident wave and concentrates its energy into the quasistatic dipole field in its gap region. The result is an illuminated area on the order of 1/5–1/10 of the wavelength across, with a transmission efficiency ranging fom 2% to as high as 30%. Grober’s concept was demo ...
... bowtie antenna intercepts the incident wave and concentrates its energy into the quasistatic dipole field in its gap region. The result is an illuminated area on the order of 1/5–1/10 of the wavelength across, with a transmission efficiency ranging fom 2% to as high as 30%. Grober’s concept was demo ...
Storing and processing optical information with ultraslow light in Bose-Einstein... Zachary Dutton and Lene Vestergaard Hau
... parameters and see a variety of novel dynamics occur, including interference fringes, gentle breathing excitations, and two-component solitons, depending on the relative scattering lengths of the atomic states used and the probe to coupling intensity ratio. We find that the dynamics when the levels ...
... parameters and see a variety of novel dynamics occur, including interference fringes, gentle breathing excitations, and two-component solitons, depending on the relative scattering lengths of the atomic states used and the probe to coupling intensity ratio. We find that the dynamics when the levels ...
azu_td_9829319_sip1_
... manuscript and there are missing pages, these will be noted. Also, if unauthorized copyright material had to be removed, a note will indicate the deletion. Oversize materials (e.g., maps, drawings, charts) are reproduced by sectioning the original, beginning at the upper left-hand comer and continui ...
... manuscript and there are missing pages, these will be noted. Also, if unauthorized copyright material had to be removed, a note will indicate the deletion. Oversize materials (e.g., maps, drawings, charts) are reproduced by sectioning the original, beginning at the upper left-hand comer and continui ...
Matter wave interferences of potassium molecules and the influence
... of collisions with potassium atoms in the ground state The aim of the current work is to investigate the suitability and the precision of molecular matter wave interferometry for study of weak interactions like cold collisions. For this a Ramsey-Bordé setup of a molecular matter wave interferometer ...
... of collisions with potassium atoms in the ground state The aim of the current work is to investigate the suitability and the precision of molecular matter wave interferometry for study of weak interactions like cold collisions. For this a Ramsey-Bordé setup of a molecular matter wave interferometer ...
SELF-CONSISTENT SIMULATION OF RADIATION AND SPACE-CHARGE IN HIGH-BRIGHTNESS RELATIVISTIC ELECTRON BEAMS
... bunch charge is 0.3 nC, and the final rms pulse length is 0.2 ps. The offset in both coordinates is due to the net energy loss of the beam. The normalized rms emittance, which is corrected for the offsets in centroids, is 18.5 mm-mrad (initial was 2 mm-mrad). . . . . . . . . . 113 5.13 Longitudinal ...
... bunch charge is 0.3 nC, and the final rms pulse length is 0.2 ps. The offset in both coordinates is due to the net energy loss of the beam. The normalized rms emittance, which is corrected for the offsets in centroids, is 18.5 mm-mrad (initial was 2 mm-mrad). . . . . . . . . . 113 5.13 Longitudinal ...
Diffraction Grating Handbook
... composition of and processes in stars and planetary atmospheres, as well as offer clues to the large-scale motions of objects in the universe. In chemistry, toxicology and forensic science, grating-based instruments are used to determine the presence and concentration of chemical species in samples. ...
... composition of and processes in stars and planetary atmospheres, as well as offer clues to the large-scale motions of objects in the universe. In chemistry, toxicology and forensic science, grating-based instruments are used to determine the presence and concentration of chemical species in samples. ...
Modern Physics - Harvey Mudd College
... d. Velocity Amplifier using Stacked Disks*# – 1N30.62 (Demo Room) VELOCITY AMPLIFIER USING STACKED DISKS – 1N30.62 - Four discs (1 5/8", 3 1/8", 5", and 8") are placed on top of each other such that they stand vertically. - The four discs are also confined to the vertical plane. - Raising and releas ...
... d. Velocity Amplifier using Stacked Disks*# – 1N30.62 (Demo Room) VELOCITY AMPLIFIER USING STACKED DISKS – 1N30.62 - Four discs (1 5/8", 3 1/8", 5", and 8") are placed on top of each other such that they stand vertically. - The four discs are also confined to the vertical plane. - Raising and releas ...
Relationship of the total integrated scattering from
... 0 and 0 are the polar and azimuthal angles of scattering, respectively. The angle ' is the angle of the incident electric field vector relative to the plane of incidence. If O = 0 (r/2), the incident beam is p-polarized (spolarized); i.e., the incident electric field vector is parallel (perpendicula ...
... 0 and 0 are the polar and azimuthal angles of scattering, respectively. The angle ' is the angle of the incident electric field vector relative to the plane of incidence. If O = 0 (r/2), the incident beam is p-polarized (spolarized); i.e., the incident electric field vector is parallel (perpendicula ...
Harmonically resonant cavity as a bunchlength monitor
... than the number of discontinuities are removed from the cavity’s mode spectrum. Finally, the shape of the cavity was tuned such that the TM0N0 modes are harmonic. This was accomplished by iteratively modifying the cavity’s geometry and solving for the TM0N0 mode frequencies with the field solver PO ...
... than the number of discontinuities are removed from the cavity’s mode spectrum. Finally, the shape of the cavity was tuned such that the TM0N0 modes are harmonic. This was accomplished by iteratively modifying the cavity’s geometry and solving for the TM0N0 mode frequencies with the field solver PO ...
Laser power beaming feasibility: non-mechanical beam steering
... This concept is successfully used for phase-locking of electric fields in the micro wave regime. Here the beam steering is performed with an array of antennas and a controlled phase shift between the different signals of the various antennas [1]. With a view to transfer this technique to laser beams ...
... This concept is successfully used for phase-locking of electric fields in the micro wave regime. Here the beam steering is performed with an array of antennas and a controlled phase shift between the different signals of the various antennas [1]. With a view to transfer this technique to laser beams ...
Optics of Liquid Crystals
... 1. Wave approach • Given an arbitrary incident plane wave, both ordinary and extraordinary waves are generated in the medium. The electric field amplitude can be written as E Ee exp[ i(x by kez z )] Eo exp[ i(x by koz z )] ...
... 1. Wave approach • Given an arbitrary incident plane wave, both ordinary and extraordinary waves are generated in the medium. The electric field amplitude can be written as E Ee exp[ i(x by kez z )] Eo exp[ i(x by koz z )] ...
Atmospheric Optics - Wiley-VCH
... excited by an external source. When the source vanishes, so does the scattered light, as distinguished from light emitted by matter, which persists in the absence of external sources. Atmospheric scatterers are either molecules or particles. A particle is an aggregation of sufficiently many molecules ...
... excited by an external source. When the source vanishes, so does the scattered light, as distinguished from light emitted by matter, which persists in the absence of external sources. Atmospheric scatterers are either molecules or particles. A particle is an aggregation of sufficiently many molecules ...
Adaptive Optics for Optical Coherence Tomography
... Optical coherence tomography (OCT) [49] is a technique based on low coherence interferometry [7, 101] that is able to reconstruct tomographic (sectional) images of the object under study. It is usually implemented as a Michelson interferometer, in which the pattern of interference between the refere ...
... Optical coherence tomography (OCT) [49] is a technique based on low coherence interferometry [7, 101] that is able to reconstruct tomographic (sectional) images of the object under study. It is usually implemented as a Michelson interferometer, in which the pattern of interference between the refere ...
Neutron Scattering Instrumentation
... conducting and superconducting radiofrequency cavities that accelerate the beam and a magnetic lattice which provides focusing and steering. The H− beam is stripped off its electrons, and the proton beam is compressed in a ring in time by about a factor 1000. After an accumulation of approximately 1 ...
... conducting and superconducting radiofrequency cavities that accelerate the beam and a magnetic lattice which provides focusing and steering. The H− beam is stripped off its electrons, and the proton beam is compressed in a ring in time by about a factor 1000. After an accumulation of approximately 1 ...
Boundless Study Slides
... Wave Behavior and Interaction • Superposition and Interference • Reflection and Transmission • Standing Waves and Resonance ...
... Wave Behavior and Interaction • Superposition and Interference • Reflection and Transmission • Standing Waves and Resonance ...
Wave packet propagation into a negative index medium
... axis is the boundary between vacuum and a material 共that is, x⫽0), while the horizontal axis is the surface normal. The range of x and y is between ⫺140 and ⫹139 times c/ p . This field of view is used in all our 2D plots. In the greyscale plot we use white whenever 兩 E z /E 0 兩 is less than 1% of ...
... axis is the boundary between vacuum and a material 共that is, x⫽0), while the horizontal axis is the surface normal. The range of x and y is between ⫺140 and ⫹139 times c/ p . This field of view is used in all our 2D plots. In the greyscale plot we use white whenever 兩 E z /E 0 兩 is less than 1% of ...
Fluorescencedetected wave packet interferometry
... some of the effect of phase control on the two-pulse photodissociation yield ofNal. In addition, they provide an interesting discussion of the analogy between mUltiple slit scattering phenomena and multiple pulse excitation with phase controL Previous theoretical work on the interference effects of ...
... some of the effect of phase control on the two-pulse photodissociation yield ofNal. In addition, they provide an interesting discussion of the analogy between mUltiple slit scattering phenomena and multiple pulse excitation with phase controL Previous theoretical work on the interference effects of ...
Diffraction
Diffraction refers to various phenomena which occur when a wave encounters an obstacle or a slit. In classical physics, the diffraction phenomenon is described as the interference of waves according to the Huygens–Fresnel principle. These characteristic behaviors are exhibited when a wave encounters an obstacle or a slit that is comparable in size to its wavelength. Similar effects occur when a light wave travels through a medium with a varying refractive index, or when a sound wave travels through a medium with varying acoustic impedance. Diffraction occurs with all waves, including sound waves, water waves, and electromagnetic waves such as visible light, X-rays and radio waves.Since physical objects have wave-like properties (at the atomic level), diffraction also occurs with matter and can be studied according to the principles of quantum mechanics. Italian scientist Francesco Maria Grimaldi coined the word ""diffraction"" and was the first to record accurate observations of the phenomenon in 1660.While diffraction occurs whenever propagating waves encounter such changes, its effects are generally most pronounced for waves whose wavelength is roughly comparable to the dimensions of the diffracting object or slit. If the obstructing object provides multiple, closely spaced openings, a complex pattern of varying intensity can result. This is due to the addition, or interference, of different parts of a wave that travels to the observer by different paths, where different path lengths result in different phases (see diffraction grating and wave superposition). The formalism of diffraction can also describe the way in which waves of finite extent propagate in free space. For example, the expanding profile of a laser beam, the beam shape of a radar antenna and the field of view of an ultrasonic transducer can all be analyzed using diffraction equations.