Atomic and Molecular Physics

Atomic and Molecular PhysicsThe Atomic and Molecular Physics is engaged in several different applications that discover new phenomena and supply basic collision data related to high electron-temperature plasmas (stellar atmospheres and solar), to cometary atmospheres and for the interstellar medium.

Other subprograms are: development of gas chromatographs with regard to space flight and miniature mass spectrometers; learning collisions of quick atoms with surface adsorbed molecules and atoms; measurement of electron molecule and electron-atom attachment procedures at ultralow electron powers and detection of trace species, at the parts for each trillion level and better, for that electric utility and Homeland Security programs. These subprograms include a wide array of collisions processes and energies involving incident ions, electron and fast neutral species; with usage of the expertise obtained in charged-particle interactions to the progression of miniature mass spectrometers and trace species detectors. In summary, the areas of research are:

Calculating in highly-charged ions (e.g., O6+, Mg7+, Fe13+) ion-neutral modify exchange cross sections, absolute electron-ion excitation cross sections, metastable lifetimes and X-ray emission phenomena

Deployment of the miniature quadrupole-array dependent Trace Gas Analyzer and the Paul-trap dependent GC/MS for Space Station, planetary and Crew Exploration Vehicle requirements

Learning collisions of fast (1-50 eV), ground-state hydrogen and oxygen atoms with cold (4.8K) surface adsorbed molecules in order to synthesize polyatomic species and trace the creation of the foundations of life

Advances in Atomic and Molecular Physics

Advances in atomic and molecular physics develops on three of the 20th century's finest advances: the establishment of the atom like a foundation of all daily matter, the progression of quantum mechanics and the invention of the laser.

Lasers give us with an extraordinary instrument to isolate, manipulate and control molecules, atoms and ions and enable us to reach extremely low temperatures often lower than a billionth of a degree over absolute zero where one of the most mind-bending implications of quantum mechanics could be exploited. These contain fermionic superfluidity, Bose-Einstein condensation (BEC), as well as other exotic states of matter. Novel directions for example quantum information science are also rising on the horizon of amo physics.

Past contributions contain the discovery of nonlinear optics, molecular spectroscopy and trailblazing research in atomic, quantum optics and quantum electrodynamics and early and ongoing work on bec and quantum information science.

Atomic and Molecular Spectroscopy

Laser-based atomic spectroscopy is actually the measurement of emission, absorption or scattering of electromagnetic radiation through molecules and atoms (or atomic and molecular ions) to research these species and their associated physical processes. The interaction of radiation with matter leads to redirection of the radiation and/or transitions among the energy levels of atoms and molecules. You can find three types of events that in many cases are studied with lasers: absorption, fluorescence and scattering. 

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