Share Email Print
cover

Proceedings Paper

Volume phase holographic echelle grating: a theoretical study
Author(s): Andrea Bianco; Giorgio Pariani
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Volume phase holographic gratings (VPHGs) are becoming fundamental dispersing elements in astronomical instrumentation. Here it will be described the efficiency behavior of such dispersing elements at high diffraction orders for understanding the possible use as echelle gratings. The efficiency is calculated based on RCWA analysis and different parameters are changed/optimized, i.e film thickness, refractive index modulation and profile. The results show that the VPHGs are not suitable for working at high orders in the classical configurations.

Paper Details

Date Published: 20 July 2010
PDF: 9 pages
Proc. SPIE 7739, Modern Technologies in Space- and Ground-based Telescopes and Instrumentation, 77394O (20 July 2010); doi: 10.1117/12.857257
Show Author Affiliations
Andrea Bianco, INAF, Osservatorio Astronomico di Brera (Italy)
Politecnico di Milano (Italy)
Giorgio Pariani, INAF, Osservatorio Astronomico di Brera (Italy)
Politecnico di Milano (Italy)


Published in SPIE Proceedings Vol. 7739:
Modern Technologies in Space- and Ground-based Telescopes and Instrumentation
Eli Atad-Ettedgui; Dietrich Lemke, Editor(s)

© SPIE. Terms of Use
Back to Top