Controlling THz wave transmission through organic copper phthalocyanine (CuPc) films on Si by optical excitation

We show that transmission of THz waves through an organic copper phthalocyanine (CuPc) film on a Si wafer can be controlled by optical excitation. The carriers excited in silicon are injected into a CuPc film and transport along well-ordered direction of a CuPc film, resulting in making a CuPc film...

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Bibliographic Details
Published in:	CLEO: 2011 - Laser Science to Photonic Applications pp. 1 - 2
Main Authors:	Hyung Keun Yoo, Chul Kang, Kiejin Lee, Chul-Sik Kee, Joong Wook Lee
Format:	Conference Proceeding
Language:	English
Published:	IEEE 01-05-2011
Subjects:	Optical attenuators Optical device fabrication Optical films Optical filters Optical modulation Silicon
Online Access:	Get full text
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Summary:	We show that transmission of THz waves through an organic copper phthalocyanine (CuPc) film on a Si wafer can be controlled by optical excitation. The carriers excited in silicon are injected into a CuPc film and transport along well-ordered direction of a CuPc film, resulting in making a CuPc film metallic and decreasing the THz transmission. Modulation efficiency depends on the phases of CuPc films. CuPc film/Si layers can be exploited for THz optical modulators.
ISBN:	1457712237 9781457712234
ISSN:	2160-8989 2160-9004
DOI:	10.1364/cleo_at.2011.jthb102