Direct creation of a photoinduced metallic structure and its optical properties in the terahertz frequency region
Optics Letters, Vol. 35, Issue 10, pp. 1719-1721 (2010)
http://dx.doi.org/10.1364/OL.35.001719
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Abstract
We investigate the surface electromagnetic characteristics of a photoinduced periodical structure using the attenuated total reflection (ATR) technique in the terahertz frequency region. A wire grating structure is generated at the surface of a silicon prism by irradiation with a spatially modulated, ultrafast pulsed laser. A characteristic minimum due to the excitation of surface waves is observed in the ATR spectrum. The depth profile of the photoinduced carrier layer is also studied. We confirm that the photoinduced structure has metallic properties. This fabrication technique will be developed as a simple method to create “active” structures.
© 2010 Optical Society of America
OCIS Codes
(230.5480) Optical devices : Prisms
(240.6680) Optics at surfaces : Surface plasmons
(260.3090) Physical optics : Infrared, far
ToC Category:
Physical Optics
History
Original Manuscript: February 24, 2010
Manuscript Accepted: April 10, 2010
Published: May 14, 2010
Citation
Takanori Okada, Kazufumi Ooi, Yosuke Nakata, Koji Fujita, Katsuhisa Tanaka, and Koichiro Tanaka, "Direct creation of a photoinduced metallic structure and its optical properties in the terahertz frequency region," Opt. Lett. 35, 1719-1721 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-10-1719
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