Organic conjugated material-based broadband terahertz wave modulators
2011; American Institute of Physics; Volume: 99; Issue: 6 Linguagem: Inglês
10.1063/1.3626591
ISSN1520-8842
AutoresHyung Keun Yoo, Chul Kang, Youngwoon Yoon, Hanju Lee, Joong Wook Lee, Kiejin Lee, Chul‐Sik Kee,
Tópico(s)Spectroscopy and Laser Applications
ResumoA 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.
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