Echelle volume binary grating: a step forward

Andrea Bianco; Noboru Ebizuka

doi:10.1117/12.925375

13 September 2012 Echelle volume binary grating: a step forward

Andrea Bianco, Noboru Ebizuka

Proceedings Volume 8450, Modern Technologies in Space- and Ground-based Telescopes and Instrumentation II; 845043 (2012) https://doi.org/10.1117/12.925375
Event: SPIE Astronomical Telescopes + Instrumentation, 2012, Amsterdam, Netherlands

Abstract

The possibility of making Volume Binary Gratings to be used in high dispersion instrumentations (echelle) is considered. The idea is to study volume gratings with a binary refractive index profile and to optimize it in terms of refractive index modulation, duty cycle, grating thickness keeping in mind the possible limitations in the realization step. A full design/optimization of these gratings based on Rigorous Couple Wave Analysis (RCWA) has been carried out providing interesting results in terms of diffraction efficiency. A discussion on the realization possibilities is also provided.

Citation Download Citation

Andrea Bianco and Noboru Ebizuka "Echelle volume binary grating: a step forward", Proc. SPIE 8450, Modern Technologies in Space- and Ground-based Telescopes and Instrumentation II, 845043 (13 September 2012); https://doi.org/10.1117/12.925375

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