Properties of Bragg diffraction of the second order in light and periodic structures interaction under dual Bragg angle
DOI:
https://doi.org/10.1109/ICATT.1999.1236131Abstract
The researchers' interest in studying properties of higher order diffraction components under Bragg diffraction is due to the fact that the second order diffraction components has angular dispersion that is twice as large and the third order - three times as large as that of the first order [1]. Appearance of higher order diffraction components is due to multiple light scattering by three-dimensional periodic structures and therefore they have higher angular and spectral selectivity. Apparently this gives an opportunity of constructing the new class of devices which use light diffraction on periodic structures which differ from devices using ordinary Bragg diffraction. Here under periodic structures we mean three-dimensional (volumetric) phase gratings created in dielectric transparent medium by ultrasonic traveling wave or the gratings produced in photorefractive crystals by holographic methods [2].References
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