Versatile spectrally shapeable multi-mode terahertz system

Maik A Scheller, M. Stecher, M. Gerhard, M. Koch

Research output: Contribution to journalArticle

2 Citations (Scopus)

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 languageEnglish (US)
Pages (from-to)81-84
Number of pages4
JournalApplied Physics B: Lasers and Optics
Volume106
Issue number1
DOIs
StatePublished - Jan 2012
Externally publishedYes

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continuous radiation
emission spectra
signal to noise ratios
frequency ranges
semiconductor lasers
diodes
gratings
spectrometers
augmentation
lasers

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physics and Astronomy (miscellaneous)

Cite this

Versatile spectrally shapeable multi-mode terahertz system. / Scheller, Maik A; Stecher, M.; Gerhard, M.; Koch, M.

In: Applied Physics B: Lasers and Optics, Vol. 106, No. 1, 01.2012, p. 81-84.

Research output: Contribution to journalArticle

Scheller, Maik A ; Stecher, M. ; Gerhard, M. ; Koch, M. / Versatile spectrally shapeable multi-mode terahertz system. In: Applied Physics B: Lasers and Optics. 2012 ; Vol. 106, No. 1. pp. 81-84.
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