OSA's Digital Library

Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Editor: Franco Gori
  • Vol. 30, Iss. 5 — May. 1, 2013
  • pp: 979–986

Revised metrology for enhanced accuracy in complex optical constant determination by THz-time-domain spectrometry

Oleksandr Sushko, Kastriot Shala, Rostyslav Dubrovka, and Robert Donnan  »View Author Affiliations


JOSA A, Vol. 30, Issue 5, pp. 979-986 (2013)
http://dx.doi.org/10.1364/JOSAA.30.000979


View Full Text Article

Enhanced HTML    Acrobat PDF (2517 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

THz time-domain spectrometry (TDS) probes the complex polarization response of materials. Various analytical procedures are applied by many to extract the associated material optical constants. This has commonly been done by iteratively varying material parameters in order to achieve a match between experiment and a theoretical transfer function (TF). The poly root behavior of a TF is emphasized for measurements with reflections in the time domain. This study provides a comprehensive analysis of the influence of the initial guesses on the accuracy of extracted material parameters. In addition, various ways of representing multiple reflections inside the sample (a Fabry–Perot-like effect) are compared and their contribution to the uncertainty of material parameters is analyzed. Experimental evidence is provided where appropriate to support theoretical statements. Furthermore, this paper offers a basis for data comparison between different THz-TDS systems in transmission mode. Finally, a clear distinction is made between a commonly used basic analysis and an enhanced one, in terms of associated uncertainties in determination of the real and imaginary parts of the complex refractive index.

© 2013 Optical Society of America

OCIS Codes
(120.4530) Instrumentation, measurement, and metrology : Optical constants
(070.2025) Fourier optics and signal processing : Discrete optical signal processing
(300.6495) Spectroscopy : Spectroscopy, teraherz

ToC Category:
Spectroscopy

History
Original Manuscript: November 12, 2012
Revised Manuscript: March 27, 2013
Manuscript Accepted: April 1, 2013
Published: April 23, 2013

Citation
Oleksandr Sushko, Kastriot Shala, Rostyslav Dubrovka, and Robert Donnan, "Revised metrology for enhanced accuracy in complex optical constant determination by THz-time-domain spectrometry," J. Opt. Soc. Am. A 30, 979-986 (2013)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-30-5-979


Sort:  Author  |  Year  |  Journal  |  Reset  

References

  1. D. H. Auston, “Picosecond optoelectronic switching and gating in silicon,” Appl. Phys. Lett. 26, 101–103 (1975). [CrossRef]
  2. D. H. Auston and P. R. Smith, “Generation and detection of millimeter waves by picosecond photoconductivity,” Appl. Phys. Lett. 43, 631–633 (1983). [CrossRef]
  3. K. P. Cheung and D. H. Auston, “A novel technique for measuring far-infrared absorption and dispersion,” Infrared Phys. 26, 23–27 (1986). [CrossRef]
  4. D. Grischkowsky, S. Keiding, M. V. Exter, and C. Fattinger, “Far-infrared time-domain spectroscopy with terahertz beams of dielectrics and semiconductors,” J. Opt. Soc. Am. B 7, 2006–2015 (1990). [CrossRef]
  5. J. B. Baxter and G. W. Guglietta, “Terahertz spectroscopy,” Anal. Chem. 83, 4342–4368 (2011). [CrossRef]
  6. J. Dai, J. Zhang, W. Zhang, and D. Grischkowsky, “Terahertz time-domain spectroscopy characterization of the far-infrared absorption and index of refraction of high-resistivity, float-zone silicon,” J. Opt. Soc. Am. B 21, 1379–1386 (2004). [CrossRef]
  7. J. A. Zeitler, P. F. Taday, D. A. Newnham, M. Pepper, K. C. Gordon, and T. Rades, “Terahertz pulsed spectroscopy and imaging in the pharmaceutical setting—a review,” J. Pharm. Pharmacol. 59, 209–223 (2007). [CrossRef]
  8. B. Jin, C. Zhang, P. Wu, and S. Liu, “Recent progress of terahertz spectroscopy on medicine and biology in China,” Terahertz Sci. Tech. 3, 192–200 (2010).
  9. A. G. Markelz, “Terahertz dielectric sensitivity to biomolecular structure and function,” IEEE J. Sel. Top. Quantum Electron. 14, 180–190 (2008). [CrossRef]
  10. E. Castro-Camus and M. B. Johnston, “Conformational changes of photoactive yellow protein monitored by terahertz spectroscopy,” Chem. Phys. Lett. 455, 289–292 (2008). [CrossRef]
  11. I. Pupeza, R. Wilk, and M. Koch, “Highly accurate optical material parameter determination with THz time-domain spectroscopy,” Opt. Express 15, 4335–4350 (2007). [CrossRef]
  12. W. Withayachumnankul, B. M. Fischer, H. Lin, and D. Abbott, “Uncertainty in terahertz time-domain spectroscopy measurement,” J. Opt. Soc. Am. B 25, 1059–1072 (2008). [CrossRef]
  13. P. U. Jepsen and B. Fischer, “Dynamic range in terahertz time-domain transmission and reflection spectroscopy,” Opt. Lett. 30, 29–31 (2005). [CrossRef]
  14. M. Naftaly and R. E. Miles, “Terahertz time-domain spectroscopy for material characterization,” Proc. IEEE 95, 1658–1665 (2007). [CrossRef]
  15. W. X. Xie, J. Li, and J. H. Pei, “THz-TDS signal analysis and substance identification via the conformal split,” Sci. China Inf. Sci. 55, 49–63 (2012). [CrossRef]
  16. T. D. Dorney, R. G. Baraniuk, and D. M. Mittleman, “Material parameter estimation with terahertz time-domain spectroscopy,” J. Opt. Soc. Am. A 18, 1562–1571 (2001). [CrossRef]
  17. M. Krüger, S. Funkner, E. Bründermann, and M. Havenith, “Uncertainty and ambiguity in terahertz parameter extraction and data analysis,” Int. J. Infrared Millim. Waves 32, 699–715 (2011). [CrossRef]
  18. M. Naftaly and R. E. Miles, “A method for removing etalon oscillations from THz time-domain spectra,” Opt. Commun. 280, 291–295 (2007). [CrossRef]
  19. L. Duvillaret, F. Garet, and J. L. Coutaz, “A reliable method for extraction of material parameters in terahertz time-domain spectroscopy,” IEEE J. Sel. Top. Quantum Electron. 2, 739–746 (1996). [CrossRef]
  20. M. Born and E. Wolf, Principles of Optics (Cambridge University, 1999).
  21. L. Duvillaret, F. Garet, and J.-L. Coutaz, “Highly precise determination of optical constants and sample thickness in terahertz time-domain spectroscopy,” Appl. Opt. 38, 409–415 (1999). [CrossRef]
  22. W. Withayachumnankul, B. Ferguson, T. Rainsford, S. P. Mickan, and D. Abbott, “Simple material parameter estimation via terahertz time-domain spectroscopy,” Electron. Lett. 41, 800–801 (2005). [CrossRef]
  23. L. Duvillaret, F. Garet, and J.-L. Coutaz, “Influence of noise on the characterization of materials by terahertz time-domain spectroscopy,” J. Opt. Soc. Am. B 17, 452–461 (2000). [CrossRef]
  24. W. Withayachumnankul, H. Lin, S. P. Mickan, B. M. Fischer, and D. Abbott, “Analysis of measurement uncertainty in THz-TDS,” Proc. SPIE 6593, 659326 (2007). [CrossRef]

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.


« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited