Line-narrowed, compact and coherent source of widely tunable terahertz radiation

M. H. Dunn, T. J. Edwards, D. J. M. Stothard, D. Walsh, P. G. Browne, C. F. Rae

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Parametric down-conversion techniques provide an effective means for producing terahertz radiation. A novel device, based on an intra-cavity geometry, hits been developed that is both compact and widely tunable over the range 1-3 THz. Reduction of the free-running linewidth of this device (typically 50-100 GHz) to <5 GHz accompanied by continuous and smooth tuning over a band extending over 50-100 GHz where this band may be set anywhere within the above tuning range is described. A significant increase in the mean terahertz power generated to >10 mu W is attained by increasing the pulse repetition rate up to 350Hz. Applications in spectroscopy and imaging are discussed.

Original languageEnglish
Title of host publication2007 JOINT 32ND INTERNATIONAL CONFERENCE ON INFRARED AND MILLIMETER WAVES AND 15TH INTERNATIONAL CONFERENCE ON TERAHERTZ ELECTRONICS, VOLS 1 AND 2
Place of PublicationNEW YORK
PublisherIEEE
Pages599-601
Number of pages3
ISBN (Print)978-1-4244-1438-3
Publication statusPublished - 2007

Keywords

  • nonlinear optics
  • optical frequency conversion
  • optical parametric oscillators
  • terahertz generation
  • WAVE PARAMETRIC GENERATOR

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