Wave optics simulation approach for partial spatially coherent beams

Xiao, Xifeng; Voelz, David G.

doi:10.1364/oe.14.006986

Cited by 90 publications

(32 citation statements)

References 8 publications

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“…Figure 3 shows the corresponding numerical intensity to the Figure 2 after propagating a distance at z = 35µm. The results indicate that the stronger decoherence (smaller τ ) of the light causes more a intense scattering along the propagation and shows comparable conclusion from the Gaussian Schell model [28].…”

Section: Figure 2 Illustrates the Intensity Patternssupporting

confidence: 75%

An Algorithm to Study of the Influence of Partial-Coherent Lights through Three-Dimensional Periodic Microstructures

Chang

et al. 2011

Jpn. J. Appl. Phys.

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A transfer-matrix algorithm is presented herein as a beginning to study the transmission characteristics of coherent light through three-dimensional periodic microstructures, in which the structures are treated as two-dimensional-layer stacks and multiple reflections are considered negligible.The spatial-correlated noise is further introduced layer by layer to realize the actual decoherence of the light and allows for statistical investigation of the partial spatially coherent optics in transparent mediums. Numerical analyses show comparable results to the Gaussian Schell model in free-space cases, indicating the validity of the algorithms.

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Section: Figure 2 Illustrates the Intensity Patternssupporting

confidence: 75%

An Algorithm to Study of the Influence of Partial-Coherent Lights through Three-Dimensional Periodic Microstructures

Chang

et al. 2011

Jpn. J. Appl. Phys.

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“…[27][28][29] Specifically, the implementation procedure can be described as follows: (1) generate a random phase screen with appropriate spatial coherence length l c ; 29 (2) apply the phase screen to a coherent beam in the source plane; (3) numerically "propagate" the beam to the observation plane 28 through a separate set of phase screens that model atmospheric turbulence and compute the intensity; and (4) repeat steps 1 to 3 N PS times, each time with a different realization of the spatial coherence screen (but without changing the turbulence screen realizations) and average the intensity at the observation plane. The average intensity is the PCB result.…”

Section: Mean Intensity Profilesmentioning

confidence: 99%

Beam wander analysis for focused partially coherent beams propagating in turbulence

Xiao

Voelz

2012

Opt. Eng

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Abstract. We extend the theory of beam wander for propagation through atmospheric turbulence to the case of a focused partially coherent beam (PCB). In addition to investigating the beam wander expression, we restate expressions for the beam size, long-and short-time average beam intensity profile, and the on-axis scintillation index of tracked and untracked beams. A wave optics simulation is implemented and the numerical results are compared with corresponding analytic results. The cases examined involve turbulence strengths ranging from C 2 n ¼ 10 −16 to 10 −14 m −2∕3 and for various horizontal paths ranging from 1 to 10 km. Although the extended analytic theory stems from a study of coherent beams, the simulation results show good agreement with the analytical results for PCBs in fluctuation regimes ranging from weak to intermediate.

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“…Somewhere between the first and second class of techniques lies the works of Voelz, Bush, and Idell (1997) and Xiao and Voelz (2006), in which the average properties of a partially coherent field are determined by constructing temporal and spatial realizations of the field, respectively, and averaging over these properties.…”

Section: Numerical Simulation Of Partially Coherent Fieldsmentioning

confidence: 99%