1 August 1994 Nonspecular longitudinal shift of the beam reflected from an interface containing an absorbing medium
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Optical Engineering, 33(8), (1994). doi:10.1117/12.176510
Abstract
Two expressions may be employed to calculate the value of the longitudinal focal displacement of the reflected beam from an absorbing medium for both s and p polarization. Our calculations show that Fp is positive (the p wave shifts along the reflected direction) and Fs is negative (the s wave shifts along the opposite direction). Assuming that the extinction coefficient is zero, then the two expressions can be simplified to the forms given by Chan and Tamir, which fit only for the nonabsorbing medium.
Guang Yao Leng, Ding Fan Gu, Xiao Yan Zang, "Nonspecular longitudinal shift of the beam reflected from an interface containing an absorbing medium," Optical Engineering 33(8), (1 August 1994). https://doi.org/10.1117/12.176510
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