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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 24 — Nov. 23, 2009
  • pp: 21969–21976

Simultaneous reference and differential waveform acquisition in time-resolved terahertz spectroscopy

Krzysztof Iwaszczuk, David G. Cooke, Masazumi Fujiwara, Hideki Hashimoto, and Peter Uhd Jepsen  »View Author Affiliations


Optics Express, Vol. 17, Issue 24, pp. 21969-21976 (2009)
http://dx.doi.org/10.1364/OE.17.021969


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Abstract

We present a new method for data acquisition in time-resolved terahertz spectroscopy experiments. Our approach is based on simultaneous collection of reference and differential THz scans. Both the optical THz generation beam and the pump beam are modulated at two different frequencies that are not harmonic with respect to each other. Our method allows not only twice as fast data acquisition but also minimization of noise connected to slowly varying laser power fluctuations and timing instabilities. Our use of the nonlinear crystal N-benzyl-2-methyl-4-nitroaniline (BNA) enables time-resolved THz spectroscopy to beyond 5 THz, thereby highlighting that the presented method is especially valuable at higher frequencies where phase errors in the data acquisition become increasingly important.

© 2009 Optical Society of America

OCIS Codes
(300.6500) Spectroscopy : Spectroscopy, time-resolved
(300.6495) Spectroscopy : Spectroscopy, teraherz

ToC Category:
Spectroscopy

History
Original Manuscript: October 14, 2009
Revised Manuscript: November 13, 2009
Manuscript Accepted: November 13, 2009
Published: November 16, 2009

Citation
Krzysztof Iwaszczuk, David G. Cooke, Masazumi Fujiwara, Hideki Hashimoto, and Peter Uhd Jepsen, "Simultaneous reference and differential waveform acquisition in time-resolved terahertz spectroscopy," Opt. Express 17, 21969-21976 (2009)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-17-24-21969


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References

  1. K. P. H. Lui, and F. A. Hegmann, "Ultrafast carrier relaxation in radiation-damaged silicon on sapphire studied by optical-pumpterahertz-probe experiments," Appl. Phys. Lett. 78, 3478 (2001). [CrossRef]
  2. D. G. Cooke, A. N. MacDonald, A. Hryciw, J. Wang, Q. Li, A. Meldrum, and F. A. Hegmann, "Transient terahertz conductivity in photoexcited silicon nanocrystal films," Phys. Rev. B 73, 193311 (2006). [CrossRef]
  3. D. G. Cooke, and P. Uhd Jepsen, "Time-resolved THz spectroscopy in a parallel plate waveguide," Phys. Stat. Solidi A 206, 997, (2009). [CrossRef]
  4. C. A. Schmuttenmaer, "Exploring Dynamics in the Far-Infrared with Terahertz Spectroscopy," Chem. Rev. 104, 1759 (2004). [CrossRef] [PubMed]
  5. B. Ferguson, and X. -C. Zhang, "Materials for terahertz science and technology," Nat. Mater. 1, 26 (2002). [CrossRef]
  6. Z. Jiang, and X.-C. Zhang, "Electro-optic measurement of THz field pulses with a chirped optical beam," Appl. Phys. Lett. 72, 1945 (1998). [CrossRef]
  7. H. Hashimoto, H. Takahaski, T. Yamada, K. Kuroyanagi, and T. Kobayshi, "Characteristics of the terahertz radiation from single crystals of N-substituted 2-methyl-4-nitroaniline," J. Phys. Condens. Matter 13, L529 (2001). [CrossRef]
  8. K. Kuroyanagi, M. Fujiwara, H. Hashimoto, H. Takahashi, S. Aoshima, and Y. Tsuchiya, "All Organic Terahertz Electromagnetic Wave Emission and Detection Using Highly Purified N-Benzyl-2-methyl-4-nitroaniline Crystals," Jpn. J. Appl. Phys. 45, 4068 (2006). [CrossRef]
  9. M. Fujiwara, M. Maruyama, M. Sugisaki, H. Takahaski, S. Aoshima, R. J. Cogdell, and H. Hashimoto, "Determination of the d-Tensor Components of a Single Crystal of N-Benzyl-2-methyl-4-nitroaniline," Jpn. J. Appl. Phys. 46, 1528 (2007). [CrossRef]
  10. Q. Wu, and X.-C. Zhang, "7 terahertz broadband GaP electro-optic sensor," Appl. Phys. Lett. 70, 1784 (1997). [CrossRef]
  11. G.L. Dakovski, B. Kubera, S. Lan, and J. Shan, "Finite pump-beam-size effects in optical pump-terahertz probe spectroscopy," J. Opt. Soc. Am. B 23, 139 (2006). [CrossRef]
  12. M. S. Tyagi, and R. Van Overstraeten, "Minority carrier recombination in heavily-doped silicon," Solid State Electronics 26, 557 (1983). [CrossRef]
  13. M. C. Beard, G. M. Turner, and C. A. Schmuttenmaer, "Sub-picosecond carrier dynamics in low-temperature grown GaAs as measured by time-resolved THz spectroscopy," J. Appl. Phys. 90, 5915 (2001). [CrossRef]
  14. S. P. Mickan, K.-S. Lee, T.-M. Lu, J. Munch, D. Abbott, and X.-C. Zhang, "Double modulated differential THz-TDS for thin film dielectric characterization," Microelectr. J. 33, 1033 (2002). [CrossRef]
  15. J. H. Strait, P. A. George, M. Levendorf, M. Blood, F. Rana, and J. Park, "Measurements of the Carrier Dynamics and Terahertz Response of Oriented Germanium Nanowires using Optical-Pump Terahertz-Probe Spectroscopy," Nano Lett. 9, 2967 (2009). [CrossRef] [PubMed]
  16. M. Beard, G. Turner, and C. Schmuttenmaer, "Transient photoconductivity in GaAs as measured by time-resolved terahertz spectroscopy," Phys. Rev. B. 62, 15764 (2000). [CrossRef]
  17. M. Schall and P. Uhd Jepsen, "Photoexcited GaAs surfaces studied by transient terahertz time-domain spectroscopy," Opt. Lett. 25, 13 (2000). [CrossRef]
  18. D. E. Aspnes, and A. A. Studna, "Dielectric functions and optical parameters of Si, Ge, GaP, GaAs, GaSb, InP, InAs, and InSb from 1.5 to 6.0 eV," Phys. Rev. B 27, 985 (1983). [CrossRef]
  19. F. A. Hegmann, and K. P. H. Lui, "Optical pump-terahertz probe investigation of carrier relaxation in radiationdamaged silicon-on-sapphire," Proc. of SPIE 4643, 31 (2002). [CrossRef]

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