Browsing by Author "Hemmer, Philip R."
Now showing items 1-20 of 20
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Maier, Eric William (Texas A&M University, 2004-09-30)A distributed fiber optic intrusion sensor capable of detecting intruders from the pressure of their weight on the earth's surface was investigated in the laboratory and in field tests. The presence of an intruder above ...
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Wang, Xi (2012-07-16)The purpose of this work is to study the interference between the coherent nonresonant four-wave-mixing (FWM) background and the Raman-resonant signal in the coherent anti-Stokes Raman spectroscopy (CARS). The nonresonant ...
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Li, Hebin (2011-08-08)Coherent effects are studied in a dense atomic vapor driven by laser fields. With optical properties dramatically modified by these effects, the medium can be used to manipulate some of the properties of laser field. Our ...
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Li, Hebin; Sautenkov, Vladimir A.; Rostovtsev, Yuri V.; Welch, George R.; Hemmer, Philip R.; Scully, Marlan O. (American Physical Society, 2009)We have experimentally studied the propagation of two optical fields in a dense rubidium (Rb) gas in the case when an additional microwave field is coupled to the hyperfine levels of Rb atoms. The Rb energy levels form a ...
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Khan, Mughees Mahmood (2009-05-15)Interest in the fabrication of nano-optical structures has increased dramatically in recent years, due to advances in lithographic resolution. In particular, metallic nanostructures are of interest because of their ability ...
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Chen, Edward H.; Clevenson, Hannah A.; Johnson, Kerry A.; Pham, Linh M.; Englund, Dirk R.; Hemmer, Philip R.; Braje, Danielle A. (Physical Review A - Atomic, Molecular, and Optical Physics, 2017)
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Zhu, Feng (2012-02-14)A detailed investigation of ion crystals produced by laser and sympathetic cooling in a linear RF trap has been conducted. The laser cooling methods were examined and applied to the trapped ^24Mg^(positive) ions. The ...
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Ryjkov, Vladimir Leonidovich (Texas A&M University, 2005-02-17)An investigation of the sympathetic cooling method for the studies of large ultra-cold molecular ions in a quadrupole ion trap has been conducted.Molecular dynamics simulations are performed to study the rf heating ...
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Peng, Luohan (2009-05-15)Nanoscale science and technology demand novel approaches and new knowledge to further advance. Nanoscale fabrication has been widely employed in both modern science and engineering. Micro/nano lithography is the most common ...
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Kim, Kibum (2017-04-25)The performance and stress-induced degradation of a-Si:H solar cells with pin and nip stacked structures prepared in the single chamber PECVD have been studied. The property of the i-layer depends on the sequence of film ...
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Deng, Zhijie (Texas A&M University, 2007-09-17)Optics has the inherent advantages of parallelism and wide bandwidths in processing information. However, the need to interface with electronics creates a bottleneck that eliminates many of these advantages. The proposed ...
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Talib, Ansam Jameel (2018-05-04)Upconversion nanoparticles (UCNPs) are popular fluorescent probes for biological systems because of their immunity to autofluorescence background, photostability, and low toxicity. Nanodiamonds are also of interest for ...
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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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Kim, Junseob (2020-05-28)This project concerns the development of a numerical technique to model high power and short electromagnetic wave propagation in nonlinear dispersive media.
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Gulka, Michal; Bourgeois, Emilie; Hruby, Jaroslav; Siyushev, Petr; Wachter, Georg; Aumayr, Friedrich; Hemmer, Philip R.; Gali, Adam; Jelezko, Fedor; Trupke, Michael; Nesladek, Milos (Physical Review Applied, 2017)
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Sun, Qingqing; Hemmer, Philip R.; Zubairy, M. Suhail (American Physical Society, 2007)Based on our previous scheme [Hemmer , Phys. Rev. Lett. 96, 163603 (2006)] we show the procedures to obtain any one- or two-dimensional pattern by multiple exposures. A key modification to the resonance condition is made ...
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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 ...
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Yum, Ho Nam (2010-10-12)Techniques to control dispersion in a medium have attracted much attention due to potential applications to devices such as ring laser gyroscopes, interferometric gravitational wave detectors, data buffers, phased array ...
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Zhdanova, Alexandra Antonovna (2018-05-07)Any chemical process can be, in principle, understood and manipulated through electron dynamics. Such dynamics occur on what is known as the “ultrashort" time scale, taking place in 10^-15 of a second (a femtosecond). ...
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Kim, Changdong (2011-08-08)NV centers in a diamond are proving themselves to be good building blocks for quantum information, electron spin resonance (ESR) imaging, and sensor applications. The key feature of the NV is that it has an electron spin ...