beam matching
1Bonnor beam — In general relativity, the Bonnor beam is an exact solution which models an infinitely long, straight beam of light. It is an explicit example of a pp wave spacetime.The Bonnor beam is obtained by matching together two regions:* a uniform plane… …
2Quasi-phase-matching — is a technique in nonlinear optics which allows a positive net flow of energy from the pump frequency to the signal and idler frequencies by creating a periodic structure in the nonlinear medium. Momentum is conserved, as is necessary for phase… …
3Alpha Beam with Ernie — Infobox VG title= Alpha Beam with Ernie caption= Screenshot from Alpha Beam with Ernie developer= Atari, Inc/Children s Computer Workshop publisher= Atari, Inc distributor= designer= series= engine= version= released= vgrelease|NA=1983 genre=… …
4Nastia Liukin — Nastia redirects here. For other uses, see Nastia (disambiguation). Nastia Liukin Liukin at New York Fashion Week, February 13, 2009 Personal information Full name …
5PU2RC — Per User Unitary Rate Control (PU2RC) is the world first codebook based multi user MIMO platform [cite conference|author=Niranjay Ravindran, Nihar Jindal, and Howard Huang|title=Beamforming with FiniteRate Feedback for LOS MIMO Downlink… …
6Abnormal reflection — is a phenomenon relating to the wave length of reflected light whether in x rays, interactions with metals, or fluids. References * [http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=1085297 On the Abnormal Reflection of X Rays by… …
7Nonlinear optics — (NLO) is the branch of optics that describes the behaviour of light in nonlinear media, that is, media in which the dielectric polarization P responds nonlinearly to the electric field E of the light. This nonlinearity is typically only observed… …
8Antenna (radio) — Whip antenna on car …
9Atom — The atom is the smallest unit of an element that retains the chemical properties of that element. An atom has an electron cloud consisting of negatively charged electrons surrounding a dense nucleus. The nucleus contains positively charged… …
10Art collections of Holkham Hall — Holkham Hall in Norfolk has extensive contents which include:Collections [ piano nobile at Holkham, showing the four symmetrical wings at each corner of the principal block. South is at the top of the plan. A Marble Hall; B The Saloon; C Statue… …
