HOME / PRESENTATIONS /

Invited

The Essence of Physics, at MacAdemia, University of California at Berkeley (Berkeley, CA), Saturday, September 1, 1990
The Essence of Physics, at Instructional Technology Program Forum, University of California at Berkeley (Berkeley, CA), Thursday, February 1, 1990
MilliHertz Surface Spectroscopy, at Ninth International Conference on Laser Spectroscopy (Bretton Woods, NH), Thursday, June 1, 1989
A technique that has been repeatedly employed in high resolution light scattering experiments is that of light beating, or heterodyne, spectroscopy. By detecting the beating signal between the scattered light and a 'local oscillator' derived from the same laser source, one can obtain ultrahigh spectral resolution, independent of the random fluctuations of the light source. We reported earlier of a novel Fourier transform heterodyne spectroscopy (FTHS) technique with high resolution which is simpler and more direct than the conventional heterodyne technique; we have since improved our... Read more about MilliHertz Surface Spectroscopy
The interaction of infrared radiation with isolated molecules: intramolecular nonequilibrium, at Lasers ¹86 Conference (Orlando, FL), Saturday, November 1, 1986
Anti-Stokes signals from various modes of isolated, infrared multiple photon excited molecules are measured to determine the intramolecular distribution of vibrational energy. This paper presents results for CF2HCl, CF2Cl2, SF6 and 1,1-C2H4F2. All but CF2HCl exhibit collisionless changes in Raman spectrum after infrared multiphoton excitation. This shows that the excitation modifies the population of these modes. Even though the symmetric SF6 molecule reaches an intramolecular equilibrium within the 20 ns time resolution of the experiment, the other molecules exhibit a distinct nonequilibrium... Read more about The interaction of infrared radiation with isolated molecules: intramolecular nonequilibrium

Pages