Customizing speckle intensity statistics

Bender, Nicholas; Yılmaz, Hasan; Bromberg, Yaron; Cao, Hui

doi:10.1364/optica.5.000595

Cited by 105 publications

(55 citation statements)

References 42 publications

(45 reference statements)

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“…Ideally, the intensity distribution of the SSM beam in terms of the probability density function would approach a delta function centered at the average intensity. As the incoherent light could be used for SSM modulation recent methods of engineering speckle intensity distributions [47] may be perhaps utilized to improve SSM efficiency.…”

Section: Decoherence -Ssm Limitationsmentioning

confidence: 99%

Spatial Spin-Wave Modulator for Quantum-Memory-Assisted Adaptive Measurements

et al. 2019

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Utilization of the spatial degree of freedom vastly enhances informational capacity of light at the cost of stringent requirements on the processing devices. Multi-mode quantum memories constitute a viable candidate for quantum and classical information processing; however, full utilization of the assets of high-dimensionality requires a flexible processing technique. We employ a spatially varying ac-Stark effect to perform arbitrary 1D phase modulation of a coherent spin-wave state stored in a wavevector-multiplexed quantum memory. A far-field and an interferometric near-field characterizations of the introduced phase profiles are presented. Additionally, coherence between temporally separated partial readouts of a single coherent spin-wave state is demonstrated, offering possible applications in adaptive measurements via conditional spin-wave modulation.

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Section: Decoherence -Ssm Limitationsmentioning

confidence: 99%

Spatial Spin-Wave Modulator for Quantum-Memory-Assisted Adaptive Measurements

et al. 2019

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“…Such a modification requires the field and intensity to fluctuate spatially on different length scales. Even in our recent demonstrations of speckle patterns with arbitrary intensity probability density functions, the field and intensity have the same correlation length [36,37]. Although speckled-speckles produced by double scattering have C I (∆r) |C E (∆r)| 2 , the difference C I (∆r) − |C E (∆r)| 2 representing the non-local intensity correlations C N L (∆r) is rather small [38,39].…”

Section: Introductionmentioning

confidence: 77%

Introducing non-local correlations into laser speckles

et al. 2019

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Laser speckles have become a fundamental component of the modern optics-research toolbox. Not only are speckle patterns the basis of numerous imaging techniques, but also, they are employed to generate optical potentials for cold atoms and colloidal particles. The ability to manipulate a speckle pattern s spatial intensity correlations, particularly long-range (non-local) ones, is essential in numerous applications. A typical fully-developed speckle pattern, however, only possesses short-ranged (local) intensity correlations which are determined by the spatial field correlations. Here we experimentally demonstrate and theoretically develop a general method for creating fully-developed speckles with strong non-local intensity correlations. The functional form of the spatial intensity correlations can be arbitrarily tailored without altering the field correlations. Our approach provides a versatile and utilitarian framework for enhancing and controlling non-local correlations in speckle patterns.

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“…Future studies could also be dedicated to clarify how the proposed process is able to impact the probability distribution functions for the resulting partially coherent fields. [ 41 ]…”

Section: Resultsmentioning

confidence: 99%

Linear and Nonlinear Fiber Propagation of Partially Coherent Fields Exhibiting Temporal Correlations

2020

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Using an ultrafast photonic first-order differentiator applied on a partially coherent field, the generation of two correlated temporal waveforms is reported and their correlation properties upon linear and nonlinear propagation along the two orthogonal polarization axes of a dispersive optical fiber are studied. Temporal correlations are maintained in linear propagation whereas Kerr nonlinearity generates anticorrelated temporal intensity patterns for both partially and uncorrelated fields. Experiments are in close agreement with the theoretical analysis.

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Customizing speckle intensity statistics

Cited by 105 publications

References 42 publications

Spatial Spin-Wave Modulator for Quantum-Memory-Assisted Adaptive Measurements

Spatial Spin-Wave Modulator for Quantum-Memory-Assisted Adaptive Measurements

Introducing non-local correlations into laser speckles

Linear and Nonlinear Fiber Propagation of Partially Coherent Fields Exhibiting Temporal Correlations

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