Acta Optica Sinica, Volume. 16, Issue 11, 1612(1996)
Transmitted Second Harmonic Generation in Langmuir Blodgett Monolayer with Variable Angle of Incidence
A theoretical expression of reflected and transmitted second harmonic generation (SHG) with different polarization combinations on a Langmuir Blodgett monolayer in front geometry and back geometry were given as a function of incident angle. Transmitted SHG signals were measured on a stilbazium salt LB monolayer with variable angle of incidence. It showed that the molecular second order polarizability β and molecular tilt angle 〈ψ〉 could be obtained by transmitted SHG measurement using only one polarization combination, provided that the variable angle measurement was made under a full 360 degree range. This a new method for obtaining molecular β and 〈ψ〉 in LB monolayer by SHG.
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[in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese]. Transmitted Second Harmonic Generation in Langmuir Blodgett Monolayer with Variable Angle of Incidence[J]. Acta Optica Sinica, 1996, 16(11): 1612