Author Of 2 Presentations
WA3.3 - MEGAFILAMENTATION OF TERAWATT, LONG-WAVELENGTH INFRARED LASER PULSES IN AIR
- S. Tochitsky (US) University of California, Los Angeles
- E. Welch (US) University of California, Los Angeles
- M. Polyanskiy (US) Brookhaven National Laboratory
- I. Pogorelsky (US) Brookhaven National Laboratory
- P. Panagiotopoulos (US) University of Arizona, Tucson
- M. Kolesik (US) University of Arizona
- E. Wright (US) University of Arizona, Tucson
- S. Koch (US) University of Arizona, Tucson
- J. Moloney (US) University of Arizona, Tucson
- J. Pigeon (US) Stony Brook University, Physics and Astronomy
- C. Joshi (US) University of California, Los Angeles
Abstract
Abstract
A new regime of laser filamentation is demonstrated with terawatt, picosecond CO2 laser pulses forming a single centimeter diameter channel in air. Joules of pulse energy are self-guided at a clamped intensity of ~1012 W/cm2 due to generation of free carriers via many-body Coulomb effects.
WA3.5 - EXPERIMENTAL STUDY OF THE RESONANT ROVIBRATIONAL NONLINEARITY OF CO2 AND CO IN THE MID-IR
Abstract
Abstract
We present time- and frequency-resolved measurements of self-focusing and self-defocusing of 4.3-4.8 µm Fe:ZnSe laser pulses tuned near rovibrational transitions of CO2 And CO. We estimate the resonant nonlinearity of the air at 4.3 µm and discuss the novel nonlinear optics of simple molecules.
Presenter Of 1 Presentation
WA3.5 - EXPERIMENTAL STUDY OF THE RESONANT ROVIBRATIONAL NONLINEARITY OF CO2 AND CO IN THE MID-IR
Abstract
Abstract
We present time- and frequency-resolved measurements of self-focusing and self-defocusing of 4.3-4.8 µm Fe:ZnSe laser pulses tuned near rovibrational transitions of CO2 And CO. We estimate the resonant nonlinearity of the air at 4.3 µm and discuss the novel nonlinear optics of simple molecules.