PHYSICS/BK21 SEMINAR[03.16]

* Speaker : Dr. Jae-wook Ahn (KAIST)

* Place : Physics Seminar Room (Science Bldg, 3-201)

* Date & Time : Mar, 16 (Tuesday) 4:00 ~ 5:00 pm

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)