搜索结果: 61-75 共查到“知识库 原子分子物理学”相关记录638条 . 查询时间(4.186 秒)
Adaptive Q control for Tapping-mode Nano-scanning Using a Piezo-actuated Bimorph Probe
Adaptive Q control Tapping-mode Nano-scanning Piezo-actuated Bimorph Probe Atomic Physics
2012/4/24
A new approach, called Adaptive Q-control, for tapping-mode Atomic Force Microscopy (AFM) is introduced and implemented on a home-made AFM set-up utilizing a Laser Doppler Vibrometer (LDV) and a piezo...
Robust Repetitive Controller for Fast AFM Imaging
Robust Repetitive Controller Fast AFM Imaging Atomic Physics
2012/4/24
Currently, Atomic Force Microscopy (AFM) is the most preferred Scanning Probe Microscopy (SPM) method due to its numerous advantages. However, increasing the scanning speed and reducing the interactio...
A Resolved-Super-Transition-Arrays method for calculation of the spectral absorption coefficient in hot plasmas
Resolved-Super-Transition-Arrays method calculation of the spectral absorption coefficient hot plasmas Atomic Physics
2012/4/24
A new method, 'Resolved-Super-Transition-Arrays', for calculation of the spectral absorption coefficient in hot plasmas is presented. The formulae of the traditional Super-Transition-Arrays method [A....
Reconfigurable self-sufficient traps for ultracold atoms based on a superconducting square
Reconfigurable self-sufficient traps ultracold atoms superconducting square Atomic Physics
2012/4/24
We report on the trapping of ultracold atoms in the magnetic field formed entirely by persistent supercurrents induced in a thin film type-II superconducting square. The supercurrents are carried by v...
Probing the interaction between Rydberg-dressed atoms through interference
interaction Rydberg-dressed atoms interference Atomic Physics
2012/4/24
We study the dynamics of an atomic Bose-Einstein condensate in an optical lattice in which the electronic groundstate of each atom is weakly coupled to a highly excited Rydberg state by a far off-reso...
Quasiclassical approach to high-energy QED processes in strong laser and atomic fields
Quasiclassical high-energy QED processes strong laser atomic fields Atomic Physics
2012/4/20
An approach, based on the use of the quasiclassical Green's function, is developed for investigating high-energy quantum electrodynamical processes in combined strong laser and atomic fields. Employin...
Fabrication and characterization of an electrically contacted vapor cell
Fabrication and characterization electrically contacted vapor cell Atomic Physics
2012/4/20
We demonstrate the use of electrically contacted vapor cells to switch the transmission of a probe laser. The excitation scheme makes use of electromagnetically induced transparency involving a Rydber...
QED model of the radiation escape from the matter
QED model radiation escape the matter Atomic Physics
2012/4/20
A simple model based on QED is presented for the estimation of contribution of the excited level few-photon decays to the radiation escape from the matter in the epoch of the cosmological hydrogen rec...
QED theory of the multiphoton cascade transitions in atoms
QED theory the multiphoton cascade transitions atoms Atomic Physics
2012/4/20
QED theory of multiphoton cascade transitions in atoms and ions is developed. This theory allows for the accurate description of the process important for astrophysical studies of the cosmological hyd...
Buffer gas-assisted polarization spectroscopy of 6Li
Buffer gas-assisted polarization spectroscopy 6Li Atomic Physics
2012/4/20
We report on the demonstration of Doppler-free polarization spectroscopy of the D2 line of 6Li atoms. Counterintuitively, the presence of an Ar buffer gas, in a certain pressure range, causes a drasti...
Dielectronic recombination of W^20+ (4d^10 4f^8): addressing the half-open f-shell
Dielectronic recombination half-open f-shell Atomic Physics
2012/4/20
A recent measurement of the dielectronic recombination (DR) of W^20+ [Schippers et al Phys. Rev. A83, 012711 (2011)] found an exceptionally large contribution from near threshold resonances (<1eV). Th...
Study of Simulation Method of Time Evolution in Rigged QED
Study of Simulation Method Time Evolution Rigged QED Atomic Physics
2012/4/20
We discuss how we formulate time evolution of physical quantities in the framework of the Rigged QED (Quantum Electrodynamics). The Rigged QED is a theory which has been proposed to treat dynamics of ...
Diagrammatic pump-probe approach to coherent backscattering of laser light by cold atoms: Double scattering revisited
Diagrammatic pump-probe coherent backscattering of laser light cold atoms Double scattering revisited Atomic Physics
2012/4/20
We present a diagrammatic derivation of the coherent backscattering spectrum from two two-level atoms using the pump-probe approach, wherein the multiple scattering signal is deduced from single-atom ...
Storage and Retrieval of an Image using Four-Wave Mixing in a Cold Atomic Ensemble
Storage Retrieval of an Image Four-Wave Mixing Cold Atomic Ensemble
2012/4/19
We experimentally realized storage and retrieval of an image of light in a cigar-shaped atomic cloud of Rubidium 85 using four-wave mixing (FWM) for the first time. The input signal and the generated ...
Optical transitions in highly-charged californium ions with high sensitivity to variation of the fine-structure constant
Optical transitions highly-charged californium ions variation of the fine-structure constant Atomic Physics
2012/4/19
We study electronic transitions in highly-charged Cf ions that are within the frequency range of optical lasers and have very high sensitivity to potential variations in the fine-structure constant, a...