Deviation of optical constants extracted in terahertz transmission spectroscopy
Applied Optics, Vol. 45, Issue 4, pp. 648-652 (2006)
http://dx.doi.org/10.1364/AO.45.000648
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Abstract
We present a simulation with a Lorentz oscillator model to evaluate the accuracy of the extracted optical constants in terahertz transmission spectroscopy. The contributions of various error sources including the deflection of the incident angle, the delay-line timing error, and two other kinds of noises are analyzed. It is revealed that the influence of the deflection angle is an approximate parabolic dependence. The delay-line timing uncertainty introduces an exponential frequency dependence in the deviation of the extinction coefficient and a distinct change in the refractive index data in the resonant region. When background and
© 2006 Optical Society of America
OCIS Codes
(120.4530) Instrumentation, measurement, and metrology : Optical constants
(120.4800) Instrumentation, measurement, and metrology : Optical standards and testing
(300.6270) Spectroscopy : Spectroscopy, far infrared
ToC Category:
Spectroscopy
History
Original Manuscript: April 21, 2005
Revised Manuscript: July 29, 2005
Manuscript Accepted: August 2, 2005
Citation
Xinlong Xu, Xiumin Wang, and Li Wang, "Deviation of optical constants extracted in terahertz transmission spectroscopy," Appl. Opt. 45, 648-652 (2006)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-45-4-648
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