Oto Brzobohatý, Lukáš Chvátal, Alexandr Jonáš, Pavel Zemánek
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引用次数: 0
Abstract
Colloidal suspensions of micron- and submicron-sized particles act as effective nonlinear media that can self-arrange into intricate static or dynamic structures upon illumination with a laser beam. Optical spatial solitons (OSSs) represent a prominent example of such light-induced structures. We study the formation of two-dimensional arrays of interacting OSSs from colloidal particles of varying sizes illuminated by counter-propagating light-sheet beams. We monitor evolution of growing OSS arrays upon addition of individual constituent particles and show that a small change in the total number of particles in the structure can induce long-range reconfiguration of the overall OSS layout. In particular, the minimal distance between the neighboring OSSs in the array is observed to nearly linearly increase with increasing number of constituent particles. Our experimental observations are semi-quantitatively supported by theoretical modeling based on the rigorous multiple Mie scattering theory.
期刊介绍：
The Optical Society (OSA) publishes high-quality, peer-reviewed articles in its portfolio of journals, which serve the full breadth of the optics and photonics community.
Optics Letters offers rapid dissemination of new results in all areas of optics with short, original, peer-reviewed communications. Optics Letters covers the latest research in optical science, including optical measurements, optical components and devices, atmospheric optics, biomedical optics, Fourier optics, integrated optics, optical processing, optoelectronics, lasers, nonlinear optics, optical storage and holography, optical coherence, polarization, quantum electronics, ultrafast optical phenomena, photonic crystals, and fiber optics. Criteria used in determining acceptability of contributions include newsworthiness to a substantial part of the optics community and the effect of rapid publication on the research of others. This journal, published twice each month, is where readers look for the latest discoveries in optics.
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