Experimentally generating any desired partially coherent Schell-model source using phase-only control
TLDR
In this article, a phase-only liquid-crystal spatial light modulator (SLM) was proposed to control both the phase and amplitude using a single SLM, thereby making the amplitude filters unnecessary.Abstract:
A technique is presented to produce any desired partially coherent Schell-model source using a single phase-only liquid-crystal spatial light modulator (SLM). Existing methods use SLMs in combination with amplitude filters to manipulate the phase and amplitude of an initially coherent source. The technique presented here controls both the phase and amplitude using a single SLM, thereby making the amplitude filters unnecessary. This simplifies the optical setup and significantly increases the utility and flexibility of the resulting system. The analytical development of the technique is presented and discussed. To validate the proposed approach, experimental results of three partially coherent Schell-model sources are presented and analyzed. A brief discussion of possible applications is provided in closing.read more
Citations
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Book ChapterDOI
Generation of Partially Coherent Beams
TL;DR: Partially coherent beams with a prescribed phase, state of polarization, and degree of coherence display many extraordinary propagation properties and are preferred in many applications, such as particle trapping, free-space optical communications, remote sensing, optical imaging, material thermal processing, image transformation, and optical encryption as discussed by the authors.
Journal ArticleDOI
Measuring the topological charge of optical vortices with a twisting phase.
Donghui Shen,Daomu Zhao +1 more
TL;DR: It was found that the doughnut-like intensity pattern of a vortex beam would separate into several bright and dark fringes, and this property was proposed as a convenient method to measure the topological charge of a Vortex beam by observing its intensity pattern after passing through a twisting phase.
Journal ArticleDOI
Generation of vector partially coherent optical sources using phase-only spatial light modulators
TL;DR: In this article, the authors control both shape and coherence using liquid-crystal spatial light modulators, and can produce two different classes of PCBs using the same simple optical setup.
Journal ArticleDOI
Synthesis of Im-Bessel correlated beams via coherent modes.
TL;DR: The first high-quality experimental realization of a random optical beam as a linear superposition of its coherent modes, applied to a Im-Bessel correlated beam which was originally introduced in theory via the coherent mode decomposition, but could not have been experimentally generated so far by any other method.
References
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