Organic conjugated material-based broadband terahertz wave modulators

Organic conjugated material-based broadband terahertz wave modulators

A simple and efficient broadband terahertz (THz) wave modulator based on an organic conjugated material thin film, 200-nm thick organic copper phthalocyanine (CuPc) film, deposited on a Si wafer was proposed. External laser beams significantly decrease the transmittance of THz pulses through the CuP...

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Bibliographic Details
Published in:Applied physics letters Vol. 99; no. 6; pp. 061108 - 061108-3
Main Authors: Keun Yoo, Hyung, Kang, Chul, Yoon, Youngwoon, Lee, Hanju, Wook Lee, Joong, Lee, Kiejin, Kee, Chul-Sik
Format: Journal Article
Language:English
Published: American Institute of Physics 08-08-2011
Online Access:Get full text
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Summary:A simple and efficient broadband terahertz (THz) wave modulator based on an organic conjugated material thin film, 200-nm thick organic copper phthalocyanine (CuPc) film, deposited on a Si wafer was proposed. External laser beams significantly decrease the transmittance of THz pulses through the CuPc film over all frequency of the pulse. Modulation efficiency reaches as high as 55% under a cw-laser beam of 80 mW.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.3626591