Abstract:A hybrid single beam spectrum øα=αøb1+(1-α)øb2=αø0e-Kb1+(1-α)ø0e-Kb2 is introduced as the combination of two single beam spectra øb1 and øb2 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 øαcan be controlled easily to the desired point by simply choosing an appropriate α. The experimental results showed that hybrid spectrum øαis very nearly identical to øb=ø0e-K(b2-αb2+αbb) under appropriate conditions, namely øα≈øb , where øbis the single beam spectrum of the real sample with the pathlength of b2-αb2+αb1.Therefore, the desired single beam spectrum øb 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.
余亚玲,屈丽莉,王海水*. 红外杂化单光束谱的性质[J]. 光谱学与光谱分析, 2017, 37(02): 403-407.
YU Ya-ling, QU Li-li, WANG Hai-shui*. The Properties of an Infrared Hybrid Single Beam Spectrum. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2017, 37(02): 403-407.
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