نتایج جستجو برای: element circularly polarized

تعداد نتایج: 240627  

Journal: :Progress In Electromagnetics Research 2008

Journal: :IEEE Transactions on Antennas and Propagation 2020

Journal: :International Journal of Engineering and Technology 2018

2008
Shun Saito Kiyotomo Ichiki Atsushi Taruya

We discuss the polarization signature of primordial gravitational waves imprinted in cosmic microwave background (CMB) anisotropies. The high-energy physics motivated by superstring theory or M-theory generically yields parity violating terms, which may produce a circularly polarized gravitational wave background (GWB) during inflation. In contrast to the standard prediction of inflation with u...

1997
Jian Ge B. D. Jacobsen T. Roberts T. Martinez W. Livingston B. McLeod M. Lloyd-Hart P. McGuire R. Noyes

The rst time simultaneous measurements of sodium column density and the absolute ux from a sodium laser guide star, created by a monochromatic 3 W cw laser, tuned to the peak of the sodium D2 hyper ne structure, were conducted at the MMT and CFA 60 inch telescope in 1997. The results show that linearly and circularly polarized laser returns are proportional to the simultaneous sodium column den...

Journal: :Proceedings of the National Academy of Sciences 1992

Journal: :IEEE Transactions on Antennas and Propagation 2013

Journal: :Journal of Electromagnetic Waves and Applications 2008

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