title: Terahertz substance imaging by waveform shaping.
abstract: Terahertz pulse shaping technique is used to adaptively design terahertz waveforms of enhanced spectral correlation to particular materials among a given set of materials. In a proof-of-principle experiment performed with a two-dimensional image target consisted of meta-materials of distinctive resonance frequencies, the as-designed waveforms are used to demonstrate terahertz substance imaging. It is hoped that this material-specific terahertz waveforms may enable single- or few-shot terahertz material classification when being used in conjunction with terahertz power measurement.
authors.affiliation: Department of Physics, KAIST, Daejeon 305-701 Korea.
authors.forename: Minwoo
authors.initials: M
authors.lastname: Yi
authors.forename: Hyosub
authors.initials: H
authors.lastname: Kim
authors.forename: Kyong Hwan
authors.initials: KH
authors.lastname: Jin
authors.forename: Jong Chul
authors.initials: JC
authors.lastname: Ye
authors.forename: Jaewook
authors.initials: J
authors.lastname: Ahn
mesh_terms: D000465:Algorithms; D007089:Image Enhancement / Q000295:instrumentation / Q000379:methods; D007090:Image Interpretation, Computer-Assisted / Q000295:instrumentation* / Q000379:methods*; D010865:Pilot Projects; D012815:Signal Processing, Computer-Assisted; D055069:Terahertz Imaging / Q000295:instrumentation* / Q000379:methods*