A5068071769- Cold Atom Physics and Bose-Einstein Condensates
- Atomic and Subatomic Physics Research
- Advanced Frequency and Time Standards
- Health Education and Validation
- Quantum, superfluid, helium dynamics
- Molecular Spectroscopy and Structure
- Urban and sociocultural dynamics
- Atomic and Molecular Physics
- Information Science and Libraries
- Quantum optics and atomic interactions
- Nuclear physics research studies
- Tribology and Lubrication Engineering
- Laser-induced spectroscopy and plasma
- Quantum Information and Cryptography
- Youth, Politics, and Society
- Radiation Detection and Scintillator Technologies
- Quantum Mechanics and Applications
- Mosquito-borne diseases and control
- Knowledge Management and Technology
- History and advancements in chemistry
- Sustainable Design and Development
- Advanced Fiber Laser Technologies
- Health, Education, and Aging
- Additive Manufacturing Materials and Processes
- Surface Roughness and Optical Measurements
Los Alamos National Laboratory
2020-2023
Indiana University – Purdue University Indianapolis
2015-2019
Sun Yat-sen University
2019
University of Indianapolis
2016
Fundação Oswaldo Cruz
2012-2014
Fraunhofer Institute for Laser Technology
2013
Abstract Open physical systems with balanced loss and gain, described by non-Hermitian parity-time $$\left( {{\cal P}{\cal T}} \right)$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mfenced> <mml:mrow> <mml:mi>P</mml:mi> <mml:mi>T</mml:mi> </mml:mrow> </mml:mfenced> </mml:math> reflection symmetric Hamiltonians, exhibit a transition which could engender modes that exponentially decay or grow time, thus spontaneously breaks the $${\cal T}$$ -symmetry. Such -symmetry-breaking...
We demonstrate a novel technique for cooling degenerate Fermi gas in crossed-beam optical dipole trap, where high-energy atoms can be selectively removed from the trap by modulating stiffness of trapping potential with anharmonic frequencies. measure dependence effect on frequency and amplitude parametric modulations. It is found that large anharmonicity along axial allows to generate anisotropic energy distribution, which cloud direction reduced ground state value.
Digital laser current modulation (DLCM) is a convenient stabilization scheme whose major advantages are simplicity and inexpensiveness of implementation. However, there tradeoff between the SNR error signal linewidth due to direct frequency modulation. In this paper, we demonstrated that DLCM can reduce FWHM tunable diode down 500 kHz using transfer spectrum D2 line Li6 atomic vapor. For purpose, theoretical model provided analyze DLCM-based spectrum. From analysis, experimentally explored...
The delivery of powder to the melt pool via nozzle is a crucial element at laser material deposition. It has major influence on consumption and quality coating layer. In order ensure consistently high process stability quality, it necessary check gas stream regular intervals. considering stream, important variables that need be monitored includes symmetry position size focus. measure requisite variables, illuminated from side using line by coaxially aligned camera through nozzle. A image...
We develop a technique for cooling degenerate Fermi gas in crossed-beam optical trap, where high-energy atoms are selectively removed by modulating the stiffness of trapping potential with anharmonic frequencies.
The 53rd Annual Meeting of the APS Division Atomic, Molecular and Optical Physics will take place from May 30 – June 3, 2022 in Orlando, Fl, USA. <a href="https://morressier.zoom.us/j/89880865272?pwd=SWxTRGhra1ZOSDBrSkhVZDBzVDR6UT09/">Virtual Presenter Help Desk</a>