Fraunhofer-Gesellschaft

Publica

Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten.

One-dimensional light modulator

 
: Sinning, Steffen; Wullinger, I.; Schmidt, Jan-Uwe; Friedrichs, Martin; Dauderstädt, Ulrike; Wolschke, Steffen; Hughes, Thomas; Pahner, D.; Wagner, Michael

:

Schenk, H. ; Society of Photo-Optical Instrumentation Engineers -SPIE-, Bellingham/Wash.:
MOEMS and miniaturized systems XI : 24 - 25 January 2012, San Francisco, California
Bellingham, WA: SPIE, 2012 (Proceedings of SPIE 8252)
ISBN: 978-0-8194-8895-4
Paper 82520H
MOEMS and Miniaturized Systems Conference <11, 2012, San Francisco/Calif.>
Photonics West Conference <2012, San Francisco/Calif.>
English
Conference Paper
Fraunhofer IPMS ()

Abstract
Facing the recent developments in the area of (quasi) continuous wave lasers towards higher power the Fraunhofer IPMS introduces a novel light modulator incorporating an innovative architecture optimized for high laser power applications requiring a fast device. As a novelty each pixel is composed of a number of micro mirrors, aligned in a row. That approach allows for, in principle, very long pixels with uniform surface properties. This concept in turn results in reduction of power density at the light modulator surface and hence opens the way to high power applications allowing power densities in the range of several ten W/cm 2 at the light modulator surface. Each pixel can be switched to black, white or even arbitrary gray values with very high speed. This paper summarizes the device design, working concept, mechanical properties for both static and dynamic operation, and surface properties. Application relevant subjects as stability under intense laser illumination complete the discussion.

: http://publica.fraunhofer.de/documents/N-206705.html