Holographic Dielectric Grating: Theory and Practice

The dielectric lamellar diffraction grating

A rigorous modal theory describing the diffraction properties of a dielectric lamellar grating is presented . The numerical implementation is shown to be suited to modelling the behaviour of high refractive index gratings . This suggests that an approach of this type may be successfully applied to the problem of lossy metallic lamellar gratings . 1 . Introduction The problem of diffraction by a...

Picosecond Holographic Grating Generation of Ultrasonic Waves

The picosecond holographic grating generation and detection of ultrasonic waves are described. Two mechanisms, a heating mechanism and a stimulated Brillouin scattering mechanism, are described. These permit the generation of tunable ultrasonic waves in the MHz to GHz range. It is demonstrated that the two mechanisms can be distinguished by the distinct time dependences of the diffraction of a ...

Polarization of holographic grating diffraction. II. Experiment.

The transmittance, ellipsometric parameters, and depolarization of transmission, diffraction, and reflection of two volume holographic gratings (VHGs) are measured at a wavelength of 632.8 nm. The measured data are in good agreement with the theoretical simulated results, which demonstrated the correlation between the diffraction strength and the polarization properties of a VHG. Vector electro...

Resonant coupling between bulk waves and guided modes in a dielectric slab with a thick holographic grating.

What we believe to be a new type of resonant coupling of an incident bulk wave into guided modes of a slab with a thick holographic grating is shown to occur in the presence of strong frequency detunings of the Bragg condition. This happens through the reflection of the strongly noneigen +1 diffracted order with the slab-grating boundaries, the resultant reflected waves forming a guided slab mo...

Designing Dielectric Grating Filters with Pgapack