Nonlinear optical techniques for surface studies. [Monolayers]

Conference · Tue Sep 01 04:00:00 EDT 1981

OSTI ID:5935494

Shen, Y R

Recent effort in developing nonlinear optical techniques for surface studies is reviewed. Emphasis is on monolayer detection of adsorbed molecules on surfaces. It is shown that surface coherent antiStokes Raman scattering (CARS) with picosecond pulses has the sensitivity of detecting submonolayer of molecules. On the other hand, second harmonic or sum-frequency generation is also sensitive enough to detect molecular monolayers. Surface-enhanced nonlinear optical effects on some rough metal surfaces have been observed. This facilitates the detection of molecular monolayers on such surfaces, and makes the study of molecular adsorption at a liquid-metal interface feasible. Advantages and disadvantages of the nonlinear optical techniques for surface studies are discussed.

• Research Organization: Lawrence Berkeley Lab., CA (USA)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5935494
• Report Number(s): LBL-13365; CONF-810987-1; ON: DE82001969
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400104 -- Spectral Procedures-- (-1987)
640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ADSORPTION
COHERENT SCATTERING
COLLISIONS
INTERFACES
LASER SPECTROSCOPY
LASERS
MOLECULE COLLISIONS
MOLECULES
NONLINEAR OPTICS
OPTICS
PHOTON COLLISIONS
PHOTON-MOLECULE COLLISIONS
PLASMONS
QUASI PARTICLES
RAMAN EFFECT
RAMAN SPECTRA
SCATTERING
SENSITIVITY
SORPTION
SPECTRA
SPECTROSCOPY
SURFACES