Zobrazeno 1 - 10
of 23
pro vyhledávání: '"G. G. Padmabandu"'
Autor:
Will Conley, G. G. Padmabandu, Yzzer Roman, Yingbo Zhao, Toufiq Aman, James Bonafede, Emmanuel Rausa, Rasmus Nielsen, Ijen van Mil, Rongkuo Zhao
Publikováno v:
Optical and EUV Nanolithography XXXV.
Autor:
Mikhail D. Lukin, Frank Sander, Edward S. Fry, G. G. Padmabandu, George R. Welch, Antoin Weis, Marlan O. Scully, Dmitri E. Nikonov, Frank K. Tittel
Publikováno v:
Foundations of Physics. 28:621-638
We have conducted an experimental study of V-type electromagnetically induced transparency in sodium. Its principles are elucidated by a simple model. Measurements show decreased fluorescence and absorption depending on the detuning of the driving an
Autor:
Shi-Yao Zhu, Marlan O. Scully, Ennio Arimondo, Edward S. Fry, G. G. Padmabandu, Martin Graf, Dmitri E. Nikonov
Publikováno v:
Physical Review A. 51:4030-4037
In the early experiments on optical pumping and coherent population trapping (``dark resonances'') increasing buffer gas pressure enhances the effect. In our recent lasing-without-inversion experiments, based on population trapping, we find the oppos
Autor:
Michael Fleischhauer, Edward S. Fry, G. G. Padmabandu, Shi-Yao Zhu, Marian O. Scully, Xingfu Li, Dmitri E. Nikonov, Ulrich W. Rathe
Publikováno v:
Quantum Optics: Journal of the European Optical Society Part B. 6:245-260
For pt. I see ibid. p. 231, 1994. We consider optical pumping in the multilevel sodium D1 manifold by several coherent light fields. Coherence between atomic states is taken into account by solving the complete density matrix equations. The manifesta
Autor:
G M Meyer, Chang Su, Marlan O. Scully, Edward S. Fry, Shi-Yao Zhu, Xingfu Li, Dmitri E. Nikonov, G G Padmabandu
Publikováno v:
Quantum Optics: Journal of the European Optical Society Part B. 6:261-271
Transient lasing without inversion has been experimentally demonstrated in sodium vapour. The principle of this atomic coherence effect can be well understood from the theory of a simple four-level system. The experimental results match with numerica
Autor:
Shi-Yao Zhu, Marlan O. Scully, Edward S. Fry, Ching Wang, Dmitri E. Nikonov, G. G. Padmabandu, Steve R. Wilkinson, Xingfu Li, Frank K. Tittel, Arlie V. Smith
Publikováno v:
Physical Review Letters. 70:3235-3238
Atomic coherence effects within the sodium ${\mathit{D}}_{1}$ line are shown to lead to the suppression of optical pumping, to the switching of light on and off when the coherence effects are turned on and off, and especially to lasing without invers
Publikováno v:
Applied optics. 34(18)
Using a new technique based on the fanning of a coherent light beam in a photorefractive BaTiO(3) crystal, we have measured the angular distribution of forward light scattering by quartz fibers of radii from 15 to 30 µm. Data have been obtained over
Publikováno v:
Applied optics. 30(1)
The entire sixteen-element light scattering matrix is experimentally determined for a circular cross-sectioned conducting fiber illuminated with lambda = 632.8-nm radiation at normal incidence. The radius (1.552 +/- 0.007) microm, determined by compa
Publikováno v:
The Journal of Physical Chemistry. 96:10450-10453
Surface second-harmonic generation has been used to obtain the electronic spectrum of trans-cinnamic acid adsorbed on optically polished silica surfaces under high-vacuum conditions at 296 K. The pattern of the second-order susceptibility tensor for
Publikováno v:
Optics letters. 17(3)
Measurements of light scattering by a quartz fiber at an angle of 0° have been made by using the 0.5145-μm line from an Ar+ laser. Data have been obtained as a function of fiber radius from 1 to 32 μm, and they are in excellent agreement with theo