Zobrazeno 1 - 10
of 54
pro vyhledávání: '"Chriki, Ronen"'
Autor:
Tradonsky, Chene, Mahler, Simon, Cai, Gaodi, Pal, Vishwa, Chriki, Ronen, Friesem, Asher A., Davidson, Nir
A rapid and efficient method for generating laser beams with controlled intensity, phase and coherence distributions is presented. It is based on a degenerate cavity laser in which a digital phase-only spatial light modulator is incorporated. We show
Externí odkaz:
http://arxiv.org/abs/2101.12551
Full-field imaging through scattering media is fraught with many challenges. Despite many achievements in recent years, current imaging methods are too slow to deal with fast dynamics that occur for example in biomedical imaging. Here we present an u
Externí odkaz:
http://arxiv.org/abs/2101.01786
Bessel beams are renowned members of a wide family of non-diffracting (propagation-invariant) fields. We report on experiments showing that non-diffracting fields are also immune to diffusion. We map the phase and magnitude of structured laser fields
Externí odkaz:
http://arxiv.org/abs/2008.05267
Autor:
Mahler, Simon, Pal, Vishwa, Tradonsky, Chene, Chriki, Ronen, Friesem, Asher A., Davidson, Nir
The dynamics of dissipative topological defects in a system of coupled phase oscillators, arranged in one and two-dimensional arrays, is numerically investigated using the Kuramoto model. After an initial rapid decay of the number of topological defe
Externí odkaz:
http://arxiv.org/abs/1903.05473
Partially coherent light is abundant in many physical systems, and its propagation properties are well understood. Here we extend current theory of propagation of partially coherent light beams to the field of coherent diffusion. Based on a unique fo
Externí odkaz:
http://arxiv.org/abs/1810.04265
Publikováno v:
Nature Reviews Physics 1, 156 (2019)
The invention of lasers 60 years ago is one of the greatest breakthroughs in modern optics. Throughout the years, lasers have enabled major scientific and technological advancements, and have been exploited in numerous applications due to their advan
Externí odkaz:
http://arxiv.org/abs/1807.11613
Reconstructing an object solely from its scattered intensity distribution is a common problem that occurs in many applications. Currently, there are no efficient direct methods to reconstruct the object, though in many cases, with some prior knowledg
Externí odkaz:
http://arxiv.org/abs/1805.10967
Autor:
Chriki, Ronen, Mahler, Simon, Tradonsky, Chene, Pal, Vishwa, Friesem, Asher A., Davidson, Nir
Publikováno v:
Phys. Rev. A 98, 023812 (2018)
Spatial coherence quantifies spatial field correlations over time, and is one of the fundamental properties of light. Here we investigate the spatial coherence of highly multimode lasers in the regime of short time scales. Counter intuitively, we sho
Externí odkaz:
http://arxiv.org/abs/1804.09306
Publikováno v:
Phys. Rev. Lett. 119, 013902 (2017)
Topologically protected defects have been observed and studied in a wide range of fields, such as cosmology, spin systems, cold atoms and optics as they are quenched across a phase transition into an ordered state. Revealing their origin and control
Externí odkaz:
http://arxiv.org/abs/1611.01622
Autor:
Tradonsky, Chene, Nixon, Micha, Ronen, Eitan, Pal, Vishwa, Chriki, Ronen, Friesem, Asher A., Davidson, Nir
A novel method for converting an array of out-of-phase lasers into one of in-phase lasers that can be tightly focused is presented. The method exploits second harmonic generation and can be adapted for different laser arrays geometries. Experimental
Externí odkaz:
http://arxiv.org/abs/1502.06201