2026-09-20T21:55:12Z https://www.ideals.illinois.edu/oai-pmh

oai:www.ideals.illinois.edu:2142/31936 2023-07-10 col_2142_8888 col_2142_5131 com_2142_8887 com_2142_234 com_2142_5130

Eden, James G. Eden, James G. Gruebele, Martin Swenson, Gary R. Carney, Paul S. DeMarco, Brian L. Ricconi, Brian 2012-06-27T21:20:16Z 2014-06-28T10:00:20Z 2012-05 2012-06-27T21:20:16Z 2012-05 Probing the interactions between a mode-locked laser pulse and saturated rubidium vapor with a pump–probe technique has resulted in observations of coherences within the atom that persist longer than 150 ps. Quantum beats due to the interference between the 7S and 5D_{5/2} energy states were observed by a four-wave mixing process. The difference frequency between the 5D–5P_{3/2} and the 5P_{3/2}–5S transitions was also observed for interpulse delays up to 180 ps. The temporal evolution of the beat amplitude indicates the existence of a superfluorescent process and a scattering process detected simultaneously with the four-wave mixing process. A model was developed to explain the processes and was used to predict the range of pulse parameters for which the scattering process and four-wave mixing could be simultaneously detected. Item withdrawn by Rebecca Bryant (rabryant@illinois.edu) on 2012-02-03T22:47:40Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 1 Ricconi_Brian.pdf: 3550550 bytes, checksum: 1a5ea84064911bc409aab7a41f9905b2 (MD5) Made available in DSpace on 2012-06-27T21:20:16Z (GMT). No. of bitstreams: 2 Ricconi_Brian.pdf: 3550550 bytes, checksum: 1a5ea84064911bc409aab7a41f9905b2 (MD5) license.txt: 4062 bytes, checksum: cfb622745be101899d8ed5cb3094cc8e (MD5) Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by William Ingram (wingram2@illinois.edu) on 2012-06-27T21:24:34Z Item is restricted until 2014-06-27T21:24:27Z Item reinstated by Sarah Shreeves (sshreeve@illinois.edu) on 2014-06-28T10:00:20Z Item was in collections: Dissertations and Theses - Electrical and Computer Engineering (ID: 446) Graduate Theses and Dissertations at Illinois (ID: 204) No. of bitstreams: 2 Ricconi_Brian.pdf: 3550550 bytes, checksum: 1a5ea84064911bc409aab7a41f9905b2 (MD5) license.txt: 4062 bytes, checksum: cfb622745be101899d8ed5cb3094cc8e (MD5) Item released from any restrictions by Sarah Shreeves (sshreeve@illinois.edu) on 2014-06-28T10:00:20Z http://hdl.handle.net/2142/31936 en Copyright 2012 Brian Ricconi Quantum beating Raman scattering Four-wave mixing Pump-probe spectroscopy Alkali vapor Quantum beat observations in rubidium vapor text Electrical & Computer Eng 1933 Electrical & Computer Engr 1200 University of Illinois at Urbana-Champaign Dissertation Ph.D. PHD:Electr & Computer Eng-UIUC 10KS1200PHD