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

Optical phase step method for absolute ranging interferometry using computer-generated holograms

1995 ◽  
Vol 34 (25) ◽  
pp. 5620 ◽  
Author(s):  
Martin Deininger ◽  
Lingli Wang ◽  
Klaus Gerstner ◽  
Theo Tschudi
Keyword(s):  
Step Method ◽  
Phase Step ◽  
Optical Phase ◽  
Computer Generated Holograms

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 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

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

scholarly journals Optical phase singularities and superluminal motion in unbounded space

2021 ◽  
Vol 5 (45) ◽  
pp. 654-660
Author(s):  
V.V. Kotlyar ◽  
A.A. Kovalev ◽  
A.G. Nalimov
Keyword(s):  
Topological Charge ◽  
Initial Plane ◽  
Optical Phase ◽  
Light Speed ◽  
Superluminal Motion ◽  
Remarkable Result ◽  
Phase Singularities ◽  
Waist Radius

In this paper, we summarize a remarkable result obtained by Soskin et al. in Phys Rev A 56, 4064 (1997). We show that for an on-axis superposition of two different-waist Laguerre-Gauss beams with numbers (0, n) and (0, m), the topological charge equals TC=m up to a plane where the waist radii become the same, given that the beam (0, m) has a greater waist radius, changing to TC=n after this plane. This occurs because in the initial plane the superposition has an on-axis op-tical vortex with TC=m and on different axis-centered circles there are (n – m) vortices with TC= +1 and (n – m) vortices with TC= –1. On approaching the above-specified plane, the vortices with TC= -1 "depart" to infinity with a higher-than-light speed, with the TC of the total beam becoming equal to TC=n. If, on the contrary, the beam (0, m) has a smaller waist, then the total TC equals n on a path from the initial plane up to a plane where the waist radii become the same, changing to TC=m after the said plane. This occurs because after the said plane, n–m vortices with TC= –1 "arrive" from infinity with a higher-than-light speed.

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