Hybrid sol-gel planar optics for astronomy

• Type: Article in International Scientific Journal
• Date: 2009

Authors

Ghasempour, A (Author) Other; Leite, AMP (Author) FCUP; Reynaud, F (Author) Other; Marques, PVS (Author) FCUP; Garcia, PJV (Author) FEUP; Alexandre, D (Author) Other; Moreira, PJ (Author) Other

Journal

Title: Optics Express

Vol. 17

Pages: 1970-1975

ISSN: 1094-4087

Publisher: Optical Society of America

Indexing

ISI Web of Knowledge - 5 Citations

Scopus - 8 Citations

Scientific classification

FOS: Natural sciences > Physical sciences

Other information

Authenticus ID: P-003-N8D

DOI: 10.1364/oe.17.001970

Abstract (EN): Hybrid sol-gel planar optics devices for astronomy are produced for the first time. This material system can operate from the visible (0.5 mu m) up to the edge of astronomical J-band (1.4 mu m). The design, fabrication and characterization results of a coaxial three beam combiner are given as an example. Fringe contrasts above 94% are obtained with a source with spectral bandwidth of 50 nm. These results demonstrate that hybrid sol-gel technology can produce devices with high quality, opening the possibility of rapid prototyping of new designs and concepts for astronomical applications. (C) 2009 Optical Society of America

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6