Temporal spectroscopic characteristics of terahertz pulses transmitted through metal hole arrays (特集 赤外線技術とその応用)
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概要
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The temporal spectroscopic characteristics of the terahertz pulse transmitted through the metal hole array is investigated by using the THz time domain spectroscopy in combination with the short-time Fourier transformation. It is found that the THz wave at around the resonant frequency of the surface plasmon-polariton (SPP) delays compared with that at higher frequency region. From the dependence of the delay time on the thickness of the metal hole array and the frequency, the delay at the SPP resonant frequency is attributed to the deceleration of the group velocity of the THz wave in the metal hole.
- 社団法人 電気学会の論文
- 2009-11-01
著者
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Hangyo Masanori
Institute Of Laser Engineering Osaka University
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Miyamaru Fumiaki
Department Of Physics Shinshu University
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Miyamaru Fumiaki
Faculty Of Science Shinshu University
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