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Title: Resonant uv pump-probe spectroscopy of dipicolinic acid via impulsive excitation

Abstract

We present experimental evidence of coherent wave packet motion in dipicolinic acid (C{sub 7}H{sub 5}NO{sub 4}) which is an important marker molecule for bacterial spores. Resonant impulsive excitation is achieved by applying a uv pump pulse (267 nm, 16 fs) which has a duration that is shorter than the vibrational period of the molecules. The resulting dynamics is then probed with a weaker pulse of the same width and frequency. Evidence of the important 'fingerprint' region for this molecule (between 1000 cm{sup -1} and 1500 cm{sup -1}) is found in the transient absorption of the probe. We present simulations of the pump-probe experiment, based on the Liouville equation for the density matrix, and predict the optimal pulse width and detuning.

Authors:
; ; ; ; ; ; ; ;  [1]
  1. Institute for Quantum Studies and Department of Physics, Texas A and M University, College Station, Texas 77843-4242, USA and Department of Physics, Drew University, Madison, New Jersey 07940 (United States)
Publication Date:
OSTI Identifier:
21140502
Resource Type:
Journal Article
Journal Name:
Physical Review. A
Additional Journal Information:
Journal Volume: 77; Journal Issue: 2; Other Information: DOI: 10.1103/PhysRevA.77.023403; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1050-2947
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; ABSORPTION; BACTERIAL SPORES; BEAMS; BOLTZMANN-VLASOV EQUATION; DENSITY MATRIX; EXCITATION; LASER RADIATION; MOLECULES; OPTICAL PUMPING; ORGANIC COMPOUNDS; PULSES; SIMULATION; SPECTROSCOPY; TRANSIENTS; ULTRAVIOLET SPECTRA; VIBRATIONAL STATES; WAVE PACKETS

Citation Formats

Murawski, Robert K, Rostovtsev, Yuri V, Sariyanni, Zoe-Elizabeth, Sautenkov, Vladimir A, Backus, Sterling, Raymondson, Daisy, Kapteyn, Henry C, Murnane, Margaret M, Scully, Marlan O, Institute for Quantum Studies and Department of Physics, Texas A and M University, College Station, Texas 77843-4242, Institute for Quantum Studies and Department of Physics, Texas A and M University, College Station, Texas 77843-4242, USA and P. N. Lebedev Institute of Physics, 53 Leninsky prospect, Moscow 119991, Department of Physics and JILA, University of Colorado, Boulder, Colorado 80309-0440, and Institute for Quantum Studies and Department of Physics, Texas A and M University, College Station, Texas 77843-4242, USA and Applied Physics and Materials Science Group, Engineering Quadrangle, Princeton University, Princeton, New Jersey 08544. Resonant uv pump-probe spectroscopy of dipicolinic acid via impulsive excitation. United States: N. p., 2008. Web. doi:10.1103/PHYSREVA.77.023403.
Murawski, Robert K, Rostovtsev, Yuri V, Sariyanni, Zoe-Elizabeth, Sautenkov, Vladimir A, Backus, Sterling, Raymondson, Daisy, Kapteyn, Henry C, Murnane, Margaret M, Scully, Marlan O, Institute for Quantum Studies and Department of Physics, Texas A and M University, College Station, Texas 77843-4242, Institute for Quantum Studies and Department of Physics, Texas A and M University, College Station, Texas 77843-4242, USA and P. N. Lebedev Institute of Physics, 53 Leninsky prospect, Moscow 119991, Department of Physics and JILA, University of Colorado, Boulder, Colorado 80309-0440, & Institute for Quantum Studies and Department of Physics, Texas A and M University, College Station, Texas 77843-4242, USA and Applied Physics and Materials Science Group, Engineering Quadrangle, Princeton University, Princeton, New Jersey 08544. Resonant uv pump-probe spectroscopy of dipicolinic acid via impulsive excitation. United States. https://doi.org/10.1103/PHYSREVA.77.023403
Murawski, Robert K, Rostovtsev, Yuri V, Sariyanni, Zoe-Elizabeth, Sautenkov, Vladimir A, Backus, Sterling, Raymondson, Daisy, Kapteyn, Henry C, Murnane, Margaret M, Scully, Marlan O, Institute for Quantum Studies and Department of Physics, Texas A and M University, College Station, Texas 77843-4242, Institute for Quantum Studies and Department of Physics, Texas A and M University, College Station, Texas 77843-4242, USA and P. N. Lebedev Institute of Physics, 53 Leninsky prospect, Moscow 119991, Department of Physics and JILA, University of Colorado, Boulder, Colorado 80309-0440, and Institute for Quantum Studies and Department of Physics, Texas A and M University, College Station, Texas 77843-4242, USA and Applied Physics and Materials Science Group, Engineering Quadrangle, Princeton University, Princeton, New Jersey 08544. 2008. "Resonant uv pump-probe spectroscopy of dipicolinic acid via impulsive excitation". United States. https://doi.org/10.1103/PHYSREVA.77.023403.
@article{osti_21140502,
title = {Resonant uv pump-probe spectroscopy of dipicolinic acid via impulsive excitation},
author = {Murawski, Robert K and Rostovtsev, Yuri V and Sariyanni, Zoe-Elizabeth and Sautenkov, Vladimir A and Backus, Sterling and Raymondson, Daisy and Kapteyn, Henry C and Murnane, Margaret M and Scully, Marlan O and Institute for Quantum Studies and Department of Physics, Texas A and M University, College Station, Texas 77843-4242 and Institute for Quantum Studies and Department of Physics, Texas A and M University, College Station, Texas 77843-4242, USA and P. N. Lebedev Institute of Physics, 53 Leninsky prospect, Moscow 119991 and Department of Physics and JILA, University of Colorado, Boulder, Colorado 80309-0440 and Institute for Quantum Studies and Department of Physics, Texas A and M University, College Station, Texas 77843-4242, USA and Applied Physics and Materials Science Group, Engineering Quadrangle, Princeton University, Princeton, New Jersey 08544},
abstractNote = {We present experimental evidence of coherent wave packet motion in dipicolinic acid (C{sub 7}H{sub 5}NO{sub 4}) which is an important marker molecule for bacterial spores. Resonant impulsive excitation is achieved by applying a uv pump pulse (267 nm, 16 fs) which has a duration that is shorter than the vibrational period of the molecules. The resulting dynamics is then probed with a weaker pulse of the same width and frequency. Evidence of the important 'fingerprint' region for this molecule (between 1000 cm{sup -1} and 1500 cm{sup -1}) is found in the transient absorption of the probe. We present simulations of the pump-probe experiment, based on the Liouville equation for the density matrix, and predict the optimal pulse width and detuning.},
doi = {10.1103/PHYSREVA.77.023403},
url = {https://www.osti.gov/biblio/21140502}, journal = {Physical Review. A},
issn = {1050-2947},
number = 2,
volume = 77,
place = {United States},
year = {Fri Feb 15 00:00:00 EST 2008},
month = {Fri Feb 15 00:00:00 EST 2008}
}