Title :
THz radiation from GaAs surfaces with metallic nano-dot arrays under optical excitation
Author :
Kang, C. ; Yoo, H.K. ; Lee, J.W. ; Kim, B.H. ; Kee, C.-S. ; Jung, H.-S. ; Jung, G.-Y.
Author_Institution :
Adv. Photonics Res. Inst., GIST, Gwangju, South Korea
Abstract :
We present characteristics of THz radiation from GaAs wafers with metallic nano-dot arrays under optical excitation. Periodic arrays of metallic nano-dots were introduced by a nano-imprinting technique. We found that the metallic nano-dot arrays can make the bandwidth of THz radiation from GaAs surfaces narrow.
Keywords :
III-V semiconductors; gallium arsenide; gold; nanostructured materials; submillimetre wave generation; Au; GaAs; GaAs surfaces; THz radiation; metallic nanodot arrays; nanoimprinting; optical excitation; periodic arrays; Bandwidth; Gallium arsenide; Gold; Optical arrays; Optical device fabrication; Optical surface waves; Stimulated emission;
Conference_Titel :
Infrared Millimeter and Terahertz Waves (IRMMW-THz), 2010 35th International Conference on
Conference_Location :
Rome
Print_ISBN :
978-1-4244-6655-9
DOI :
10.1109/ICIMW.2010.5612960
