PHYSICS/BK21 SEMINAR[10.03.16]
관련링크
본문
“Coherent optical computing for T-ray imaging” * Speaker : Dr. Jae-wook Ahn (KAIST) * Place : Physics Seminar Room (Science Bldg, 3-201) * Date & Time : Mar, 16 (Thesday) 4:00 ~ 5:00 pm Abstract Single point imagery of 2D objects is proposed by exploiting the extreme broadband nature of ultrafast terahertz wave. In the proposed imagery, a collimated terahertz beam is illuminated on an object and the scattered fields are measured through a hole at the Fourier plane in a conventional terahertz time-domain spectroscope. This arrangement allows conversion of radial spatial frequencies of the object to the temporal spectrum of the pulse. Hence, a 2D image can be readily obtained by rotating a hole around the optical axis. Experimental results confirm that a complicated object can be reliably imaged using only 30 waveform measurements. Contact Person : Prof. Yoon Ho Kim (054-279-2093, yoonho@postech.ac.kr) |
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