Molecular orientation at interfaces as studied by optical second-harmonic generation

Robert M. Corn

doi:10.1117/12.59303

14 May 1992 Molecular orientation at interfaces as studied by optical second-harmonic generation

Robert M. Corn

Proceedings Volume 1636, Applied Spectroscopy in Materials Science II; (1992) https://doi.org/10.1117/12.59303
Event: OE/LASE '92, 1992, Los Angeles, CA, United States

Abstract

The nonlinear optical process of second harmonic generation (SHG) is an inherently surface sensitive technique for studying the interface of two centrosymmetric media. This surface selectivity has led to its application as an in situ probe of chemisorption, molecular orientation, and adsorbate organization at interfaces. This paper describes the use of resonant SHG to measure molecular adsorption and orientation at solid-air, solid-liquid, and liquid-liquid surfaces. The polarization and phase dependence of the resonant SHG from molecules at these surfaces can be related to the average molecular orientation at the interface. Perturbation theory calculations using pi-electron wavefunctions are used to identify the molecular nonlinear polarizability tensor elements required in the orientation calculation.

Citation Download Citation

Robert M. Corn "Molecular orientation at interfaces as studied by optical second-harmonic generation", Proc. SPIE 1636, Applied Spectroscopy in Materials Science II, (14 May 1992); https://doi.org/10.1117/12.59303

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available