Title :
Transmittance modulation of terahertz pulses through organic-inorganic hybrid structures under polarization and incident angle dependent optical excitation
Author :
Hyung Keun Yoo ; Sun-Goo Lee ; Chul Kang ; Joong Wook Lee ; Chul-Sik Kee
Author_Institution :
Adv. Photonics Res. Inst., GIST, Gwangju, South Korea
Abstract :
We investigated the transmittance of terahertz (THz) pulses through organic copper phthalocyanine (CuPc) thin films deposited on a Si wafer under optical excitation by varying the polarization and incident angle of the excitation. The photo-carrier induced THz transmittance modulation reflects the angle-dependent reflectivity of the CuPc thin films and the birefringence induced by the charge density grating.
Keywords :
birefringence; copper compounds; diffraction gratings; light polarisation; organic-inorganic hybrid materials; pulse modulation; reflectivity; terahertz waves; thin films; Si wafer; angle-dependent reflectivity; birefringence; charge density grating; incident angle dependent optical excitation; organic copper phthalocyanine thin film deposition; organic-inorganic hybrid structure; photocarrier induced terahertz pulse transmittance modulation; polarization; Optical beams; Optical films; Optical modulation; Optical polarization; Optical reflection; Silicon;
Conference_Titel :
Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2014 39th International Conference on
Conference_Location :
Tucson, AZ
DOI :
10.1109/IRMMW-THz.2014.6956445
