Intracavity generation of continuous wave terahertz radiation

Maik A Scheller, A. Young, J. M. Yarborough, Jerome V Moloney, Stephan W Koch, C. Y. Drouet D'Aubigny, Christopher K Walker

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

1 Citation (Scopus)

Abstract

We present a terahertz source based on difference frequency generation within a laser cavity. Combining the high intracavity intensities of a dual-color vertical external cavity surface emitting laser (VECSEL) with the high nonlinear coefficient of a periodically poled lithium niobate crystal enables the generation of milliwatts of continuous wave terahertz radiation. As the frequency spacing between the two simultaneously oscillating laser lines can be adjusted freely, the entire range of the terahertz gap can be covered. We discuss different approaches for the wavelength control of the dual-color laser sources as well as emission characteristics of the nonlinear crystal. Exemplarily, we chose the frequencies 1.9 THz to characterize the source in term of the beam shape, the linewidth and power scalability. To investigate the emitted THz spectrum, heterodyne detection is employed.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Volume8240
DOIs
StatePublished - 2012
EventNonlinear Frequency Generation and Conversion: Materials, Devices, and Applications XI - San Francisco, CA, United States
Duration: Jan 24 2012Jan 26 2012

Other

OtherNonlinear Frequency Generation and Conversion: Materials, Devices, and Applications XI
CountryUnited States
CitySan Francisco, CA
Period1/24/121/26/12

Fingerprint

Terahertz waves
continuous radiation
electromagnetic radiation
Radiation
Color
Crystals
Lasers
Laser resonators
Laser
Surface emitting lasers
Linewidth
Light sources
color
Scalability
Lithium
lithium niobates
laser cavities
surface emitting lasers
Crystal
Wavelength

Keywords

  • Continuous wave
  • Intracavity
  • Local oscillator
  • Nonlinear optics
  • Terahertz
  • VECSEL

ASJC Scopus subject areas

  • Applied Mathematics
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Scheller, M. A., Young, A., Yarborough, J. M., Moloney, J. V., Koch, S. W., Drouet D'Aubigny, C. Y., & Walker, C. K. (2012). Intracavity generation of continuous wave terahertz radiation. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 8240). [824007] https://doi.org/10.1117/12.911943

Intracavity generation of continuous wave terahertz radiation. / Scheller, Maik A; Young, A.; Yarborough, J. M.; Moloney, Jerome V; Koch, Stephan W; Drouet D'Aubigny, C. Y.; Walker, Christopher K.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 8240 2012. 824007.

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

Scheller, MA, Young, A, Yarborough, JM, Moloney, JV, Koch, SW, Drouet D'Aubigny, CY & Walker, CK 2012, Intracavity generation of continuous wave terahertz radiation. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 8240, 824007, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications XI, San Francisco, CA, United States, 1/24/12. https://doi.org/10.1117/12.911943
Scheller MA, Young A, Yarborough JM, Moloney JV, Koch SW, Drouet D'Aubigny CY et al. Intracavity generation of continuous wave terahertz radiation. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 8240. 2012. 824007 https://doi.org/10.1117/12.911943
Scheller, Maik A ; Young, A. ; Yarborough, J. M. ; Moloney, Jerome V ; Koch, Stephan W ; Drouet D'Aubigny, C. Y. ; Walker, Christopher K. / Intracavity generation of continuous wave terahertz radiation. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 8240 2012.
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