Terahertz modulation on angle-dependent photoexcitation in organic-inorganic hybrid structures
2013; American Institute of Physics; Volume: 103; Issue: 15 Linguagem: Inglês
10.1063/1.4825170
ISSN1520-8842
AutoresHyung Keun Yoo, Sun‐Goo Lee, Chul Kang, Chul‐Sik Kee, Joong Wook Lee,
Tópico(s)Photonic Crystals and Applications
ResumoThe characteristics of terahertz (THz) modulation in organic copper phthalocyanine thin films deposited on a Si wafer were investigated by angle-dependent photoexcitation. We reveal that the efficiency of THz modulation reflects not only the angle-dependent reflectivity of the organic thin films that undergo a change of complex refractive index due to photoexcitation but also the laser-induced birefringence induced by a charge density grating in the direction normal to the polarization of the excitation beams.
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