Second Harmonic Generation (SHG) was employed to study phase transition in molecular films formed at the air/water interface. Studies were performed at biomimetic lipid monolayers by simultaneous surface tension and SHG measurements. Light polarization analysis of the SHG intensities was performed with different lipid interfaces. A comparison between these interfaces provided lipid condensed state-dependent data. An optical signature was observed in the polarization plots for the transition from the Liquid-Expanded (LE) to the Liquid-Condensed (LC) state.

Date Published: 16 March 2015
PDF: 6 pages
Proc. SPIE 9360, Organic Photonic Materials and Devices XVII, 93600T (16 March 2015); doi: 10.1117/12.2079065

Published in SPIE Proceedings Vol. 9360:
Organic Photonic Materials and Devices XVII
Christopher E. Tabor; François Kajzar; Toshikuni Kaino; Yasuhiro Koike, Editor(s)