TY - GEN
T1 - Mode selective excitation mechanisms in molecules using shaped pulses
AU - Weinacht, T. C.
AU - Bartels, R.
AU - Bucksbaum, P. H.
AU - Pearson, B.
AU - Apteyn, H. K.
AU - Murnane, M.
N1 - Publisher Copyright:
© 2001 Optical Soc. Of America.
PY - 2001
Y1 - 2001
N2 - Summary form only given. A major goal of coherent control is to enable mode-selective excitation of molecules. Pulse shaping combined with learning control loops has been demonstrated to be a highly effective technique for coherent control. For many experiments however, the mechanism behind the control is not well understood. Moreover, previous work on controlling molecular vibration has largely been limited to molecular beams or cryogenically cooled systems. Here we present results on controlling nuclear vibrations in atmospheric density, room temperature (∼300K), molecular gases. By using very broad-bandwidth pulses, we can impulsively excite selected vibrations, and also shape the light pulse to suppress or enhance specific modes in SF6 and CO2. This work extends the reach of previous experiments to macroscopic quantities of gas at room temperatures. In addition, accurate characterization of optimized pulses provided by FROG allows us to interpret the control mechanism.
AB - Summary form only given. A major goal of coherent control is to enable mode-selective excitation of molecules. Pulse shaping combined with learning control loops has been demonstrated to be a highly effective technique for coherent control. For many experiments however, the mechanism behind the control is not well understood. Moreover, previous work on controlling molecular vibration has largely been limited to molecular beams or cryogenically cooled systems. Here we present results on controlling nuclear vibrations in atmospheric density, room temperature (∼300K), molecular gases. By using very broad-bandwidth pulses, we can impulsively excite selected vibrations, and also shape the light pulse to suppress or enhance specific modes in SF6 and CO2. This work extends the reach of previous experiments to macroscopic quantities of gas at room temperatures. In addition, accurate characterization of optimized pulses provided by FROG allows us to interpret the control mechanism.
UR - https://www.scopus.com/pages/publications/84958236348
U2 - 10.1109/QELS.2001.962032
DO - 10.1109/QELS.2001.962032
M3 - Conference contribution
AN - SCOPUS:84958236348
T3 - Technical Digest - Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference, QELS 2001
SP - 177
BT - Technical Digest - Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference, QELS 2001
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - Quantum Electronics and Laser Science Conference, QELS 2001
Y2 - 6 May 2001 through 11 May 2001
ER -