Browsing by Author "Welch, George R."
Now showing items 21-40 of 47
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Wang, Xi; Zhang, Aihua; Zhi, Miaochan; Sokolov, Alexei V.; Welch, George R. (American Physical Society, 2010)We investigate the possibility of using a hybrid coherent anti-Stokes Raman scattering technique for noninvasive monitoring of blood glucose levels. Our technique combines instantaneous coherent excitation of several ...
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High resolution laser spectroscopy of cesium and rubidium molecules with optically induced coherence Chen, Hui (Texas A&M University, 2006-10-30)This work is devoted to the study of the quantum coherent effects in diatomic molecular systems by using high resolution laser spectroscopy. In particular, we have studied the rubidium diatomic molecular gaseous medium's ...
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Burzo, Andrea Mihaela (Texas A&M University, 2007-04-25)Generation of reproducible attosecond (10-18s) pulses is an exciting goal: in the same way as femtosecond pulses were used to make "movies" of the atomic motion in molecules, attosecond pulses could "uncover" the motion ...
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Haubrich, David (2011-10-21)The backscattering coefficient bb is one of the inherent optical properties of natural waters which means that it is independent of the ambient light field in the water. As such, it plays a central role in many problems ...
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Mikhailov, Eugeniy E.; Sautenkov, Vladimir A.; Novikova, Irina; Welch, George R. (Physical Review A - Atomic, Molecular, and Optical Physics, 2004)
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Mikhailov, E. E.; Sautenkov, V. A.; Novikova, I.; Welch, George R. (American Physical Society, 2004)We experimentally study the group time delay for a light pulse propagating through hot Rb-87 vapor in the presence of a strong coupling field in a Lambda configuration. We demonstrate that the ultraslow pulse propagation ...
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Patnaik, Anil K.; Hsu, Paul S.; Agarwal, Girish S.; Welch, George R.; Scully, Marlan O. (American Physical Society, 2007)We examine the role of ground-state coherence on the fluorescence from the excited state in a three-level Lambda system under continuous-wave excitation. When resonantly pumped, the fluorescence is strongly affected by any ...
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Novikova, Irina Borisovna (Texas A&M University, 2004-09-30)Nonlinear magneto-optical effects, originated from atomic coherence, are studied both theoretically and experimentally in thermal Rb vapor. The analytical description of the fundamental properties of coherent media are ...
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Hsu, Paul S.; Patnaik, Anil K.; Welch, George R. (American Physical Society, 2008)We have studied the nonlinear Faraday effect with intense linear polarized light in an optically thick atomic rubidium vapor. We demonstrate that the polarization rotation rate (rotation angle per unit magnetic field, in ...
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Nonlinear magneto-optical rotation of elliptically polarized light RID A-1272-2007 RID B-9041-2008 Matsko, A. B.; Novikova, I.; Zubairy, M. Suhail; Welch, George R. (American Physical Society, 2003)We predict theoretically and demonstrate experimentally an ellipticity-dependent nonlinear magneto-optic rotation of elliptically polarized light propagating in a medium with atomic coherence. We show that this effect ...
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Yelin, S. F.; Sautenkov, V. A.; Kash, M. M.; Welch, George R.; Lukin, M. D. (American Physical Society, 2003)Double dark resonances originate from a coherent perturbation of a system displaying electromagnetically induced transparency. We experimentally show and theoretically confirm that this leads to the possibility of extremely ...
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Jha, Pankaj (2012-10-19)It is well known that the optical properties of multi-level atomic and molecular system can be controlled and manipulated efficiently using quantum coherence and interference, which has led to many new effects in quantum ...
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Musser, Joseph Alan (Texas A&M University, 2007-04-25)We report results for the development of a flow-through integrated cavity absorption meter (ICAM.) Absorption measurements have been made with 2% or less change in the signal in the presence of up to 10 m-1 of scattering ...
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Ariunbold, Gombojav O.; Kash, Michael M.; Sautenkov, Vladimir A.; Li, Hebin; Rostovtsev, Yuri V.; Welch, George R.; Scully, Marlan O. (American Physical Society, 2010)We study the superfluorescence (SF) from a gas of rubidium atoms. The atoms of a dense vapor are excited to the 5D state from the 5S state by a two-photon process driven by 100-fs laser pulses. The atoms decay to the 6P ...
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Kolesov, Roman L. (Texas A&M University, 2004-09-30)Modification of nuclear resonant absorption by means of laser radiation is analyzed both theoretically and experimentally. Theoretical analysis is done on the basis of four-level model of atom. This model includes both ...
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Li, Hebin; Sautenkov, Vladimir A.; Kash, Michael M.; Sokolov, Alexei V.; Welch, George R.; Rostovtsev, Yuri V.; Zubairy, M. Suhail; Scully, Marlan O. (American Physical Society, 2008)We study the possibility of creating spatial patterns having subwavelength size by using the so-called dark states formed by the interaction between atoms and optical fields. These optical fields have a specified spatial ...
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Yang, Wenlong (2012-10-19)Optical precursor is the sharp optical pulse front that does not show delay in absorptive media. In this thesis, optical precursor behavior in rubidium (Rb) vapor was investigated in the picoseconds regime. An amplified ...
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Propagation dynamics of controlled cross-talk via interplay between chi((1)) and chi((3)) processes Hsu, Paul S.; Welch, George R.; Gord, James R.; Patnaik, Anil K. (American Physical Society, 2011)We investigate theoretically and experimentally the propagation dynamics of a nonlinear cross-talk effect between two probe channels in a double-ladder system and show that an interplay between chi((1)) and chi((3)) processes ...
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Mikhailov, Eugeniy E.; Sautenkov, Vladimir A.; Rostovtsev, Yuri V.; Zhang, Aihua; Zubairy, M. Suhail; Scully, Marlan O.; Welch, George R. (American Physical Society, 2006)We have studied the transmission through an optically thick Rb-87 vapor that is illuminated by monochromatic and noise-broadened laser fields in Lambda configuration. The spectral width of the beat signal between the two ...
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Zhang, Xiwen (2016-08-31)Quantum optical memory implies the storage of quantum state of light in an atomic ensemble and its retrieval at the later moment of time on demand. It is one of the key elements of both quantum communication and quantum ...