Hostname: page-component-745bb68f8f-g4j75 Total loading time: 0 Render date: 2025-01-11T22:34:21.915Z Has data issue: false hasContentIssue false
  • English
  • Français

Optoelectronic difference-frequency synthesiser:terahertz-waves for high-resolution spectroscopy

Published online by Cambridge University Press:  25 December 2008

L. Aballea  and
L. F. Constantin
L. Aballea
Affiliation:
Laboratoire Phlam, UMR 8523 CNRS, 59655 Villeneuve d'Ascq, France
L. F. Constantin*
Affiliation:
Laboratoire Phlam, UMR 8523 CNRS, 59655 Villeneuve d'Ascq, France
*
[email protected]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

We demonstrate a simple approach for a difference-frequency synthesiser within the terahertz domain. Two near-infrared CW diode lasers are frequency-locked to the resonances of a high finesse Fabry-Perot cavity using the Pound-Drever-Hall technique. Two acousto-optic modulators driven by RF synthesizers frequency-shift each diode laser and provide continuous tuning, modulation and switching capabilities for the difference-frequency. Terahertz-waves generated by heterodyne mixing in an ultrahigh-bandwidth photodetector are used to interrogate the rotational transitions in the ground state of themethyl-chloride.

Keywords

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 45 , Issue 2 , February 2009 , 21201
Copyright
© EDP Sciences, 2008

References

Phil. Trans. R. Soc. Lond. A 362, 1815 (2004)
Barkan, A. et al., Opt. Lett. 29, 575 (2004) CrossRef
Kawase, A.K. et al., J. Phys. D 35, R1 (2002) CrossRef
Tanabe, T. et al., J. Phys. D 36, 953957 (2003) CrossRef
Belkin, M.A. et al., Nat. Photon. 1, 288 (2007) CrossRef
Brown, E.R. et al., Appl. Phys. Lett. 66, 285 (1995) CrossRef
Pin Chen, et al., J. Mol. Spectrosc. 236, 116 (2006) CrossRef
Gregory, I.S. et al., Electron. Lett. 40, 143 (2004) CrossRef
Champenois, C. et al., Phys. Rev. Lett. 99, 013001 (2007) CrossRef
Bergquist, J.C., Daniel, H.U., Opt. Commun. 48, 327 (1984) CrossRef
Quraishi, Q. et al., Opt. Lett. 30, 3231 (2005) CrossRef
Drever, R.W.P. et al., Appl. Phys. B 31, 97 (1983) CrossRef
For an example, see Toptica Photonics DL100 Diode Laser System manual, Part 4, Chap. 4.2 (2002), p.18
Donley, E.A. et al., Rev. Sci. Instrum. 76, 063112 (2005) CrossRef
Demaison, J. et al., J. Mol. Spectrosc. 166, 147 (1994) CrossRef
Harde, H. et al., J. Opt. Soc. Am. B 11, 1018 (1994) CrossRef
Bernard, V. et al., Metrologia 34, 313 (1997) CrossRef
Yasui, T. et al., Appl. Phys. Lett. 88, 241104 (2006) CrossRef