All

What are you looking for?

All
Projects
Results
Organizations

Quick search

  • Projects supported by TA ČR
  • Excellent projects
  • Projects with the highest public support
  • Current projects

Smart search

  • That is how I find a specific +word
  • That is how I leave the -word out of the results
  • “That is how I can find the whole phrase”

Filters

39 886 (0,158s)

Result

Investigation of multiple Bragg reflections and their possible exploitation

This paper summarizes recent results of an exhaustive experimental study of multiple Bragg reflections accompanying allowed as well as forbidden reflections. The multiple reflection observations were carried out in...

Nuclear related engineering; (nuclear physics to be 1.3);

  • 2021
  • Jimp
  • Link
Result

Multiple Bragg Reflections Are Not Always Negligible and Spurious

diffraction studies of multiple Bragg reflections (MBR) accompanying an allowed as well as forbidden reflections. The MBR-observations were carried out, namely, in the frame of Bragg diffraction optics experiments...

Materials engineering

  • 2022
  • Jimp
  • Link
Result

Multiple Bragg reflections of neutrons related to a strong allowed reflection Si(004) in a cylidrically bent perfect crystal

The experimental results of particular studies of multiple Bragg reflection (MBR) effects related to a strong Si(400) reflection in the cylindrically bent perfect crystal at the neutron wavelength of 0.162 nm are presented....

Condensed matter physics (including formerly solid state physics, supercond.)

  • 2018
  • O
Result

Investigation of multiple Bragg reflections at a constant neutron wavelength and their possible separation

Multiple Bragg reflections (MBR) realized in one bent-perfect crystal (BPC) slab by sets of different lattice planes behave differently in comparison to the case of perfect nondeformed or mosaic crystal. Individual sets of lattice p...

BG - Jaderná, atomová a molekulová fyzika, urychlovače

  • 2012
  • Jx
  • Link
Result

Principle of Fiber Bragg Gratings Measurement

This work discusses the measurement principle of fiber Bragg gratings (FBGs). Aim of the work is found a cheap method for measuring grating reflectivity and implement it into education. This principle takes advantage of laser diode ...

JA - Elektronika a optoelektronika, elektrotechnika

  • 2007
  • D
Result

Bragg reflection waveguides as a source of photon pairs: theory and experiments

n this paper, we present Bragg reflection waveguides as a novel universal platform for reaching the phasematching of spontaneous parametric downconversion process in semiconductor materials. We have designed two different waveguide ...

BH - Optika, masery a lasery

  • 2011
  • D
  • Link
Result

Generation of paired photons in a quantum separable state in Bragg reflection waveguides

This work proposes and analyses a novel approach for the generation of separable (quantum uncorrelated) photon pairs based on spontaneous parametric down-conversion in Bragg reflection waveguides composed of semiconductor AlGaN laye...

BM - Fyzika pevných látek a magnetismus

  • 2011
  • Jx
  • Link
Result

Dynamical theory of diffraction of particles: Ewald approach. I.

, Bragg reflection at the Bragg angle Pi/2, and for both coplanar and noncoplanarUsing Ewald's self-consistent theory of multiple scattering the reflection for application in the short--wavelength region. The obtai...

BE - Teoretická fyzika

  • 1996
  • C
Result

Generation of polarization-entangled photon pairs in a Bragg reflection waveguide

We demonstrate experimentally that spontaneous parametric down-conversion in an AlxGa1-xAs semiconductor Bragg reflection waveguide can make for paired photons highly entangled in the polarization degree of freedom at the telecommun...

BH - Optika, masery a lasery

  • 2013
  • Jx
  • Link
Result

Parameter analysis of a pair of Bragg gratings with overlapping spectra for power measurement of small deformations

Bragg gratings belong to a group of single-point fibre optic sensors that can measurement, conversion of a spectral shift to a reflected power change allows replacing. This article deals with the design of parameters of a pair of

Telecommunications

  • 2019
  • Jimp
  • Link
  • 1 - 10 out of 39 886