Bragg diffraction of waves in one-dimensional doubly periodic media

1994 ◽  
Vol 50 (6) ◽  
pp. 3631-3635 ◽  
Author(s):  
F. G. Bass ◽  
G. Ya. Slepyan ◽  
S. T. Zavtrak ◽  
A. V. Gurevich
Keyword(s):  
Bragg Diffraction ◽  
Periodic Media ◽  
One Dimensional

scholarly journals Plasmon-excitonic polaritons in metal-semiconductor nanostructures with quantum wells

2018 ◽  
Vol 52 (5) ◽  
pp. 502
Author(s):  
V.A. Kosobukin
Keyword(s):  
Quantum Well ◽  
Quantum Wells ◽  
Semiconductor Nanostructures ◽  
Bragg Diffraction ◽  
Rabi Splitting ◽  
One Dimensional ◽  
Exciton Coupling ◽  
Optical Reflection ◽  
Reflectivity Spectra ◽  
Bragg Structures

AbstractA theory of plasmon-exciton coupling and its spectroscopy is developed for metal-semiconductor nanostructures. Considered as a model is a periodic superlattice with cells consisting of a quantum well and a layer of metal nanoparticles. The problem is solved self-consistently using the electrodynamic Green’s functions taking account of resonant polarization. Coulomb plasmon-exciton interaction is associated with the dipole surface plasmons of particles and their image charges due to excitonic polarization of neighboring quantum well. Optical reflection spectra are numerically investigated for superlattices with GaAs/AlGaAs quantum wells and silver nanoparticles. Superradiant regime caused by one-dimensional Bragg diffraction is studied for plasmonic, excitonic and plasmon-excitonic polaritons depending on the number of supercells. The plasmon-excitonic Rabi splitting is shown to occur in reflectivity spectra of resonant Bragg structures.

scholarly journals Development of X-ray streak camera electronics at AWRE

1986 ◽  
Vol 4 (1) ◽  
pp. 145-156 ◽  
Author(s):  
M. C. Jackson ◽  
R. D. Long ◽  
D. Lee ◽  
N. J. Freeman
Keyword(s):  
Streak Camera ◽  
Sweep Rate ◽  
Bragg Diffraction ◽  
X Rays ◽  
Crystal Spectrometer ◽  
One Dimensional ◽  
X Ray ◽  
Ramp Generator ◽  
Laser Facility ◽  
User Facility

The paper reviews a number of X-ray streak cameras developed at AWRE. These cameras are used to provide temporal and one-dimensional spatial or spectral information on X-rays emitted from laser produced plasmas. Two of these cameras have been designed to be combined with other diagnostic instrumentation; one with a Wolter X-ray microscope (×22 magnification) and the other with a Bragg diffraction crystal spectrometer. This latter instrument provides a few eV spectral resolution and ∼15 ps temporal resolution; a typical experimental application at the AWRE HELEN laser facility will be described. The paper describes the circuitry of the bipolar avalanche transistor ramp generator used to drive the streak plates of the cameras. Improvements to this include: (a) increasing the fastest streak rate to ∼10 ps mm−1 by a distributed capacitance network across each of the bipolar stacks of transistors, and (b) reducing the trigger jitter to approximately ±10 ps by the use of a new mix of transistors in the stack and a Raytheon RS 3500 avalanche transistor. Additional improvements have now been added. These include a ‘half-scan’ user facility to aid initial camera timing and direct switching to select the sweep rate of the camera.

Gap solitons and their linear stability in one-dimensional periodic media

2011 ◽  
Vol 240 (12) ◽  
pp. 1055-1068 ◽  
Author(s):  
Guenbo Hwang ◽  
T.R. Akylas ◽  
Jianke Yang
Keyword(s):  
Linear Stability ◽  
Periodic Media ◽  
One Dimensional ◽  
Gap Solitons

One-Dimensional Periodic Potential in Quantum Mechanics

2010 ◽  
Vol 3 (2) ◽  
pp. 99-107
Author(s):  
Vladimir K. Ignatovich
Keyword(s):  
Mathematical Method ◽  
Quantum Mechanics ◽  
Periodic Potential ◽  
Three Dimensional ◽  
Periodic Systems ◽  
Periodic Media ◽  
One Dimensional

An elegant mathematical method is demonstrated with the help of simplest one-dimensional problems of quantum mechanics. This method is then applied to calculation of scattering on one-dimensional periodic systems. Generalization of the method for calculation of scattering in three dimensional periodic media and for spinor particles is pointed out.

OPTIMAL BOUNDS ON DISPERSION COEFFICIENT IN ONE-DIMENSIONAL PERIODIC MEDIA

2009 ◽  
Vol 19 (09) ◽  
pp. 1743-1764 ◽  
Author(s):  
CARLOS CONCA ◽  
JORGE SAN MARTÍN ◽  
LOREDANA SMARANDA ◽  
MUTHUSAMY VANNINATHAN
Keyword(s):  
Periodic Structure ◽  
Volume Fraction ◽  
Dispersion Coefficient ◽  
One Dimension ◽  
Periodic Media ◽  
One Dimensional ◽  
Dispersion Tensor ◽  
Optimal Bounds ◽  
Macroscopic Quantity

In this paper, we consider the macroscopic quantity, namely the dispersion tensor associated with a periodic structure in one dimension (see Refs. 5 and 7). We describe the set in which this quantity lies, as the microstructure varies preserving the volume fraction.

Mechanisms of second-harmonic generation in one-dimensional periodic media

1999 ◽  
Vol 29 (7) ◽  
pp. 632-637 ◽  
Author(s):  
Anatolii V Andreev ◽  
O A Andreeva ◽  
A V Balakin ◽  
D Boucher ◽  
P Masselin ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Periodic Media ◽  
One Dimensional
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