Abstract
We report the operation of a pulsed terahertz (THz) imaging system that uses a 120 fs pulse-width laser operating at 1.06 μm, and photoconductive InGaAs emitters and detectors. THz images are presented of biological and nonbiological specimens. The signal-to-noise ratio and frequency range of this system are compared to those obtained from existing pulsed imaging systems based on 0.8 μm excitation.
Original language | English |
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Pages (from-to) | 4113-4115 |
Journal | Applied Physics Letters |
Volume | 83 |
Issue number | 20 |
DOIs | |
Publication status | Published - 2003 |