OSA's Digital Library

Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 1 — Jan. 9, 2006
  • pp: 430–437

High-resolution THz spectrometer with kHz scan rates

A. Bartels, A. Thoma, C. Janke, T. Dekorsy, A. Dreyhaupt, S. Winnerl, and M. Helm  »View Author Affiliations


Optics Express, Vol. 14, Issue 1, pp. 430-437 (2006)
http://dx.doi.org/10.1364/OPEX.14.000430


View Full Text Article

Enhanced HTML    Acrobat PDF (369 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

We demonstrate a rapid scanning high-resolution THz spectrometer capable of acquiring THz field transients with 1 ns duration without mechanical delay line. The THz spectrometer is based on two 1-GHz Ti:sapphire femtosecond lasers which are linked with a fixed repetition rate difference in order to perform high-speed asynchronous optical sampling. One laser drives a high-efficiency large-area GaAs based THz emitter, the other laser is used for electro-optic detection of the emitted THz-field. At a scan rate of 9 kHz a time resolution of 230 fs is accomplished. High-resolution spectra from 50 GHz up to 3 THz are obtained and water absorption lines with a width of 11 GHz are observed. The use of femtosecond lasers with 1 GHz repetition rate is essential to obtain rapid scanning and high time-resolution at the same time.

© 2006 Optical Society of America

OCIS Codes
(320.7090) Ultrafast optics : Ultrafast lasers
(320.7150) Ultrafast optics : Ultrafast spectroscopy

ToC Category:
Ultrafast Optics

Virtual Issues
Vol. 1, Iss. 2 Virtual Journal for Biomedical Optics

Citation
A. Bartels, A. Thoma, C. Janke, T. Dekorsy, A. Dreyhaupt, S. Winnerl, and M. Helm, "High-resolution THz spectrometer with kHz scan rates," Opt. Express 14, 430-437 (2006)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-14-1-430


Sort:  Journal  |  Reset  

References

  1. D. Mittleman (ed.), Sensing with THz radiation (Springer, Heidelberg, 2002) and references therein.
  2. C. Janke, M. Först, M. Nagel, H. Kurz, and A. Bartels, "Asynchronous optical sampling for high-speed characterization of integrated resonant THz sensors," Opt. Lett. 30, 1405-1407 (2005). [CrossRef] [PubMed]
  3. T. Yasui, E. Saneyoshi, and T. Araki, "Asynchronous optical sampling THz time-domain spectroscopy for ultrahigh spectral resolution and rapid data acquisition," Appl. Phys. Lett. 87, 061101 (2005). [CrossRef]
  4. P.A. Elzinga, F.E. Lytle, Y. Jian, G.B. King, and N.M. Laurendeau, "A pump/probe method for fast analysis of visible spectral signatures utilizing asynchronous optical sampling," Appl. Opt. 26 4303 (1987). [CrossRef] [PubMed]
  5. F. Keilmann, C. Gohle, and R. Holzwarth, "Time-domain mid-infrared frequency-comb spectrometer," Opt. Lett. 29 1542-1544 (2004). [CrossRef] [PubMed]
  6. F.C. DeLucia, "Noise, detectors, and submillimeter-terahertz system performance in nonambient environments," J. Opt. Soc. Am. B 21 1273-1279 (2004). [CrossRef]
  7. D.W. van der Weide, J. Murakowski, and F. Keilmann, "Gas-absorption spectroscopy with electronic terahertz techniques," IEEE Trans. Microwave Theory Tech. 48 740-743 (2000). [CrossRef]
  8. A. Bartels, F. Hudert, C. Janke, T. Dekorsy, and K. Köhler, "Femtosecond time-resolved optical pump-probe spectroscopy at kHz-scan-rates over ns-time-delays without mechanical delay line," Appl. Phys. Lett. submitted (2005).
  9. A. Dreyhaupt, S. Winnerl, T. Dekorsy, and M. Helm, "High-intensity THz radiation from a microstructured large-area photoconductor," Appl. Phys. Lett. 86 121114 (2004). [CrossRef]
  10. Q. Wu and X.-C. Zhang, "Ultrafast electro-optic field sensors," Appl. Phys. Lett. 68 1604-1606 (1996). [CrossRef]
  11. R. Huber, A. Brodschelm, F. Tauser, and A. Leitenstorfer, "Generation and field resolved detection of femtosecond electromagnetic pulses tunable up to 41 THz," Appl. Phys. Lett. 76 3191-3193 (2000). [CrossRef]
  12. H.J. Bakker, G.C. Cho, H. Kurz, Q. Wu, and X.-C. Zhang, "Distortion of THz pulses in electro-optic sampling," J. Opt. Soc. Am. B 15 1795-1801 (1998). [CrossRef]
  13. P. Planken, N. Nienhuys, H.J. Bakker, and W.T. Wenckebach, "Measurement and calculation of the orientation dependence of terahertz pulse detection in ZnTe," J. Opt. Soc. Am. B 18 313-317 (2001). [CrossRef]
  14. D.E. Burch, "Absorption of infrared radiant energy by CO2 and H2O. III. Absorption of H2O between 0.5 and 36 cm-1 (278 μm - 2 cm)," J. Opt. Soc. Am. 58 1383-1394 (1968). [CrossRef]
  15. J.M. Flaud, C. Camy-Peyret, and R.A. Toth, Water vapor line parameters from microwave to medium infrared (Pergamon, Oxford, 1981).
  16. M. van Exter, Ch. Fattinger, and D. Grischkowsky, "Terahertz time-domain spectroscopy of water vapor," Opt. Lett. 14 1128-1130 (1989). [CrossRef] [PubMed]

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

Supplementary Material


» Media 1: GIF (101 KB)     
» Media 2: GIF (76 KB)     

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited