Spectroscopy and Spectral Analysis, Volume. 37, Issue 2, 403(2017)
The Properties of an Infrared Hybrid Single Beam Spectrum
A hybrid single beam spectrum α=αb1+(1-α)b2=α0e-Kb1+(1-α)0e-Kb2 is introduced as the combination of two single beam spectra b1 and b2 from the same sample but with different pathlengths (b1 and b2), where α(0<α<1) is the hybrid coefficient. The intensity of hybrid spectrum α can be controlled easily to the desired point by simply choosing an appropriate α. The experimental results showed that hybrid spectrum α is very nearly identical to b=0e-K(b2-αb2+αbb) under appropriate conditions, namely α≈b, where b is the single beam spectrum of the real sample with the pathlength of b2-αb2+αb1. Therefore, the desired single beam spectrum b can be obtained easily by choosing α and we no longer need to prepare IR sample with the thickness of b. Hybrid spectrum method shows valuable potential in application of eliminating background interference.
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YU Ya-ling, QU Li-li, WANG Hai-shui. The Properties of an Infrared Hybrid Single Beam Spectrum[J]. Spectroscopy and Spectral Analysis, 2017, 37(2): 403
Received: Mar. 16, 2016
Accepted: --
Published Online: Jun. 20, 2017
The Author Email: Ya-ling YU (1159527574@qq.com)