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THz emission from mercury cadmium telluride films grown on cadmium zinc telluride substrates

Conference Paper


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Abstract

  • We have observed THz emission from singleand double-layer HgCdTe (MCT) films epitaxially grown on CdZnTe substrates photoexcited by femtosecond laser pulses. The emitted THz radiation was electro-optically detected in reflection-mode at the 45 degrees specular direction. There is a dramatic variation in the emitted signal level from the double-layer samples, whereas the signal level from the single-layer samples shows a relatively constant variation with composition and/or geometry. For the double-layer samples, the highest peak amplitude recorded is 1/5 of that of an InAs emitter, analogous to double that of a standard ZnTe emitter, and shows promise for further enhancement.

UOW Authors

  •   Mendis, Rajind (external author)
  •   Smith, M L. (external author)
  •   Lewis, R A.

Publication Date

  • 2006

Citation

  • Mendis, R., Smith, M., Vickers, R. E., Lewis, R. A. & Zhang, C. (2006). THz emission from mercury cadmium telluride films grown on cadmium zinc telluride substrates. In X. Shen, W. Lu, J. Zhang & W. B. Dou (Eds.), Conference Digest of the 2006 Joint 31st International Conference on Infrared and Millimeter Waves and 14th International Conference on Terahertz Electronics (pp. 434-434). NY, USA: IEEE.

Ro Full-text Url

  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1369&context=engpapers

Ro Metadata Url

  • http://ro.uow.edu.au/engpapers/363

Start Page

  • 434

End Page

  • 434

Place Of Publication

  • http://ieeexplore.ieee.org/xpl/tocresult.jsp?isnumber=4221944&isYear=2007 and http://webapps1.ieee.org/conferenceSearch/details.do;jsessionid=BL9QLG3M6bHcQllqnTGZthBCStdmb1Zvd3mZ0lzLBnqljy4wNWL9!-693518831?tagNo=11791

Abstract

  • We have observed THz emission from singleand double-layer HgCdTe (MCT) films epitaxially grown on CdZnTe substrates photoexcited by femtosecond laser pulses. The emitted THz radiation was electro-optically detected in reflection-mode at the 45 degrees specular direction. There is a dramatic variation in the emitted signal level from the double-layer samples, whereas the signal level from the single-layer samples shows a relatively constant variation with composition and/or geometry. For the double-layer samples, the highest peak amplitude recorded is 1/5 of that of an InAs emitter, analogous to double that of a standard ZnTe emitter, and shows promise for further enhancement.

UOW Authors

  •   Mendis, Rajind (external author)
  •   Smith, M L. (external author)
  •   Lewis, R A.

Publication Date

  • 2006

Citation

  • Mendis, R., Smith, M., Vickers, R. E., Lewis, R. A. & Zhang, C. (2006). THz emission from mercury cadmium telluride films grown on cadmium zinc telluride substrates. In X. Shen, W. Lu, J. Zhang & W. B. Dou (Eds.), Conference Digest of the 2006 Joint 31st International Conference on Infrared and Millimeter Waves and 14th International Conference on Terahertz Electronics (pp. 434-434). NY, USA: IEEE.

Ro Full-text Url

  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1369&context=engpapers

Ro Metadata Url

  • http://ro.uow.edu.au/engpapers/363

Start Page

  • 434

End Page

  • 434

Place Of Publication

  • http://ieeexplore.ieee.org/xpl/tocresult.jsp?isnumber=4221944&isYear=2007 and http://webapps1.ieee.org/conferenceSearch/details.do;jsessionid=BL9QLG3M6bHcQllqnTGZthBCStdmb1Zvd3mZ0lzLBnqljy4wNWL9!-693518831?tagNo=11791