TELECONFERENCING APPARATUS WITH VIRTUAL POINT SOURCE PRODUCTION

2013 ◽  
Vol 133 (2) ◽  
pp. 1191
Author(s):  
Ryo Tanaka
Keyword(s):  
Point Source ◽  
Virtual Point

Virtual Point Source Pumped cw Nd:YAG Laser with 81 W Output from Linear Cavity and 22 W Output from Ring Cavity

1996 ◽  
Vol 35 (Part 2, No. 10A) ◽  
pp. L1268-L1270 ◽  
Author(s):  
Jie Song ◽  
An Ping Liu ◽  
Kazunori Okino ◽  
Kenichi Ueda
Keyword(s):  
Point Source ◽  
Nd:Yag Laser ◽  
Ring Cavity ◽  
Linear Cavity ◽  
Virtual Point

scholarly journals Empirical Estimation of Virtual Point Source Height Over a Bank of Coke Ovens

2016 ◽  
Vol 22 (1) ◽  
pp. 17-26 ◽  
Author(s):  
Jacek Żeliński ◽  
Dorota Kaleta ◽  
Jolanta Telenga-Kopyczyńska
Keyword(s):  
Point Source ◽  
Empirical Estimation ◽  
Coke Ovens ◽  
Virtual Point

High SNR emission method with virtual point source in ultrasound computed tomography

2019 ◽  
Author(s):  
Wenjing Wu ◽  
Yushi Tsubota ◽  
Atsuro Suzuki ◽  
Kazuhiro Yamanaka ◽  
Takahide Terada ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Point Source ◽  
Emission Method ◽  
Ultrasound Computed Tomography ◽  
Virtual Point

Diffraction-limited virtual point source microlenses

1995 ◽  
Author(s):  
Shawn W. Connely ◽  
James J. Snyder
Keyword(s):  
Point Source ◽  
Virtual Point

scholarly journals X-ray coherent mirage: Generation of phase – matched coherent point source in plasma media by propagated X-ray laser seeded beam

2016 ◽  
Vol 34 (3) ◽  
pp. 402-411 ◽  
Author(s):  
A.Ya. Faenov ◽  
T.A. Pikuz ◽  
S.A. Magnitskiy ◽  
N. Nagorskiy ◽  
M. Tanaka ◽  
...  
Keyword(s):  
Laser Beam ◽  
Point Source ◽  
Physical Nature ◽  
Coherent Radiation ◽  
Spatial Profile ◽  
X Ray ◽  
Heated Air ◽  
Propagation Of Light ◽  
Light Rays ◽  
Virtual Point

AbstractThe overview of the recent results for discovery and investigations of a very exotic phenomenon – optical mirage in the X-ray spectral range – is presented. It was found that the mirage could be created in the form of coherent virtual point source, emerging in the vicinity of the second plasma in two-stage oscillator-amplifier X-ray laser. The X-ray source-mirage, rigidly phased with the initial radiation of generator, occurs only when amplification takes place in the amplifier plasma and leads to the appearance of the interference pattern in the form of concentric rings in the spatial profile of the output X-ray laser beam. The equation describing the emergence of X-ray mirage was found, numerical solution of which shows that its formation is similar to that of the optical mirages observed at propagation of light rays through an inhomogeneously heated air. Obtained results have already demonstrated novel comprehension into the physical nature of amplification of X-ray radiation, opening additional opportunities for X-ray interferometry, holography, and other applications, which require multiple rigidly phased sources of coherent radiation.

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