scholarly journals Short- and long-range screening of optical phase singularities and C points

2008 ◽  
Vol 281 (17) ◽  
pp. 4194-4204 ◽  
Author(s):  
David A. Kessler ◽  
Isaac Freund
Keyword(s):  
Long Range ◽  
Optical Phase ◽  
Phase Singularities

scholarly journals Moiré pattern of interference dislocations in condensate of indirect excitons

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
J. R. Leonard ◽  
Lunhui Hu ◽  
A. A. High ◽  
A. T. Hammack ◽  
Congjun Wu ◽  
...  
Keyword(s):  
Long Range ◽  
Direct Measurement ◽  
Quantum Systems ◽  
Matter Waves ◽  
Moire Pattern ◽  
Indirect Excitons ◽  
Moiré Pattern ◽  
Moiré Effect ◽  
Phase Singularities ◽  
Bose Einstein

AbstractInterference patterns provide direct measurement of coherent propagation of matter waves in quantum systems. Superfluidity in Bose–Einstein condensates of excitons can enable long-range ballistic exciton propagation and can lead to emerging long-scale interference patterns. Indirect excitons (IXs) are formed by electrons and holes in separated layers. The theory predicts that the reduced IX recombination enables IX superfluid propagation over macroscopic distances. Here, we present dislocation-like phase singularities in interference patterns produced by condensate of IXs. We analyze how exciton vortices and skyrmions should appear in the interference experiments and show that the observed interference dislocations are not associated with these phase defects. We show that the observed interference dislocations originate from the moiré effect in combined interference patterns of propagating condensate matter waves. The interference dislocations are formed by the IX matter waves ballistically propagating over macroscopic distances. The long-range ballistic IX propagation is the evidence for IX condensate superfluidity.

scholarly journals Measuring optical phase singularities at subwavelength resolution

2004 ◽  
Vol 6 (5) ◽  
pp. S189-S196 ◽  
Author(s):  
René Dändliker ◽  
Iwan Märki ◽  
Martin Salt ◽  
Antonello Nesci
Keyword(s):  
Optical Phase ◽  
Subwavelength Resolution ◽  
Phase Singularities

Spiral forces established by optical phase singularities

2010 ◽  
Vol 55 (35) ◽  
pp. 3998-4004
Author(s):  
Xiang Fang ◽  
ZhaoJun Ding ◽  
YanLi Feng ◽  
JianPeng Zhang
Keyword(s):  
Optical Phase ◽  
Phase Singularities

Near-Field Optical Phase Antennas for Long-Range Plasmon Coupling

Nano Letters ◽  
2008 ◽  
Vol 8 (8) ◽  
pp. 2479-2484 ◽  
Author(s):  
Alberto G. Curto ◽  
F. Javier García de Abajo
Keyword(s):  
Long Range ◽  
Near Field ◽  
Plasmon Coupling ◽  
Optical Phase

scholarly journals Generation of optical phase singularities by computer-generated holograms

1992 ◽  
Vol 17 (3) ◽  
pp. 221 ◽  
Author(s):  
N. R. Heckenberg ◽  
R. McDuff ◽  
C. P. Smith ◽  
A. G. White
Keyword(s):  
Optical Phase ◽  
Phase Singularities ◽  
Computer Generated Holograms

scholarly journals Quantum cores of optical phase singularities

2004 ◽  
Vol 6 (5) ◽  
pp. S178-S180 ◽  
Author(s):  
M V Berry ◽  
M R Dennis
Keyword(s):  
Optical Phase ◽  
Phase Singularities

scholarly journals Quantum cores of optical phase singularities

2004 ◽  
Vol 6 (6) ◽  
pp. 666-666 ◽  
Author(s):  
M V Berry ◽  
M R Dennis
Keyword(s):  
Optical Phase ◽  
Phase Singularities

Optical phase singularities 'going to' infinity with a higher-than-light speed

2021 ◽  
Author(s):  
Victor V Kotlyar ◽  
Alexey Andreevich Kovalev ◽  
Anton Nalimov
Keyword(s):  
Optical Phase ◽  
Light Speed ◽  
Phase Singularities
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