Narrow-band and wide-band coherent terahertz source generation using 3 wave difference frequency mixing and Cross-Reststrahlen-band dispersion compensation in ultra-high purity III-V semiconductor crystals

Gregory S. Herman, Norman P. Barnes, Nasser N Peyghambarian

Research output: Chapter in Book/Report/Conference proceedingChapter

1 Citation (Scopus)

Abstract

We discuss the Cross-Reststrahlen band phasematching technique for narrow-band three-wave interactions. In GaP, assuming a maximum practical crystal length of 100 millimeters, the calculations predict that with a source wavelength of 0.965 micrometers, a tuning range of greater than 50 GHz is possible around the perfectly phasematched 3.0 THz center frequency. When GaP is pumped with a source wavelength of 1.000 micrometers, the coherence length is at least 100 mm for a frequency range of greater than 600 GHz around the perfectly phasematched 630 GHz center frequency. High Resistivity GaP is available in cylindrical boules that are larger than 50 millimeters in diameter and 75 millimeters in length. GaP has a bandgap cutoff wavelength in the Visible at 0.55 micrometers and a simple phonon absorption spectrum with a single fundamental absorption at approximately 27 micrometers (11 THz), which indicates a potential for high transmission in both the NIR and FIR. Any remaining FIR absorption can be attributed to free electron absorption and two phonon absorption processes. In this paper, we report new measurements of GaP regarding FIR absorption, optical damage threshold and optical quality. These measurements indicate that undoped, high-resistivity GaP single crystal can be used to generate THz waves.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherSociety of Photo-Optical Instrumentation Engineers
Pages112-123
Number of pages12
Volume3617
StatePublished - 1999
Externally publishedYes
EventProceedings of the 1999 Terahertz Spectroscopy and Applications - San Jose, CA, USA
Duration: Jan 25 1999Jan 26 1999

Other

OtherProceedings of the 1999 Terahertz Spectroscopy and Applications
CitySan Jose, CA, USA
Period1/25/991/26/99

Fingerprint

coherent sources
Dispersion compensation
narrowband
micrometers
purity
broadband
Crystals
Wavelength
crystals
Electron absorption
wavelengths
boules
electrical resistivity
wave interaction
yield point
Light absorption
free electrons
Light sources
Absorption spectra
Energy gap

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Herman, G. S., Barnes, N. P., & Peyghambarian, N. N. (1999). Narrow-band and wide-band coherent terahertz source generation using 3 wave difference frequency mixing and Cross-Reststrahlen-band dispersion compensation in ultra-high purity III-V semiconductor crystals. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 3617, pp. 112-123). Society of Photo-Optical Instrumentation Engineers.

Narrow-band and wide-band coherent terahertz source generation using 3 wave difference frequency mixing and Cross-Reststrahlen-band dispersion compensation in ultra-high purity III-V semiconductor crystals. / Herman, Gregory S.; Barnes, Norman P.; Peyghambarian, Nasser N.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 3617 Society of Photo-Optical Instrumentation Engineers, 1999. p. 112-123.

Research output: Chapter in Book/Report/Conference proceedingChapter

Herman, GS, Barnes, NP & Peyghambarian, NN 1999, Narrow-band and wide-band coherent terahertz source generation using 3 wave difference frequency mixing and Cross-Reststrahlen-band dispersion compensation in ultra-high purity III-V semiconductor crystals. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 3617, Society of Photo-Optical Instrumentation Engineers, pp. 112-123, Proceedings of the 1999 Terahertz Spectroscopy and Applications, San Jose, CA, USA, 1/25/99.
Herman GS, Barnes NP, Peyghambarian NN. Narrow-band and wide-band coherent terahertz source generation using 3 wave difference frequency mixing and Cross-Reststrahlen-band dispersion compensation in ultra-high purity III-V semiconductor crystals. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 3617. Society of Photo-Optical Instrumentation Engineers. 1999. p. 112-123
Herman, Gregory S. ; Barnes, Norman P. ; Peyghambarian, Nasser N. / Narrow-band and wide-band coherent terahertz source generation using 3 wave difference frequency mixing and Cross-Reststrahlen-band dispersion compensation in ultra-high purity III-V semiconductor crystals. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 3617 Society of Photo-Optical Instrumentation Engineers, 1999. pp. 112-123
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