Abstract
We present a multimode continuous wave terahertz spectrometer driven by a compact laser diode with a tunable spectrum. An external feedback based on two optical gratings into the diode allows us to shape the laser emission spectrum, and hence the temporal shape of the terahertz signals. In particular, we show a power enhancement of a factor of ten for individual regions of the spectrum to gain a signal-to-noise ratio in the frequency range of interest.
Original language | English (US) |
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Pages (from-to) | 81-84 |
Number of pages | 4 |
Journal | Applied Physics B: Lasers and Optics |
Volume | 106 |
Issue number | 1 |
DOIs | |
State | Published - Jan 2012 |
Externally published | Yes |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)
- Physics and Astronomy(all)