Fraunhofer diffraction and the state of polarization of partially coherent electromagnetic beams

Wang, Yangyundou; Yan, Shenggang; Li, Xiaofei; Liu, Xianlong; Cai, Yangjian; Agrawal, Govind P.; Visser, Taco D.

doi:10.1364/ol.44.003330

Cited by 12 publications

(6 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Once the insulation performance of the speed sensor is reduced to a certain extent, the signal line and power line will produce surge pulses. Under the propagation of the conductor, the interior of the monitoring system will also be affected by the surge pulse group [12]. Cai et al believe that the development of foreign electric vehicles has been decades of history and automobile technology is relatively mature and has made some achievements.…”

Section: Literature Reviewmentioning

confidence: 99%

Research on EMC Optimization of Wireless Electric Field Sensor for Rail Vehicle

Liu

Sun²,

Zhao³

et al. 2022

Journal of Sensors

View full text Add to dashboard Cite

In order to improve the electromagnetic compatibility of railway vehicle wireless electric field sensor, a research on electromagnetic compatibility optimization of railway vehicle wireless electric field sensor is proposed. The results show that the optimized RF radiation energy is greatly reduced from 60 to 20, which is completely lower than the standard limit of radiation disturbance, and meets the requirements of EMC design of electronic products. The feasibility and effectiveness of the optimal design are proved. The experimental results show that the test results meet the requirements of general technical conditions of electromagnetic compatibility of speed sensor, which indicates that the electromagnetic compatibility design proposed can be popularized and applied.

show abstract

Section: Literature Reviewmentioning

confidence: 99%

Research on EMC Optimization of Wireless Electric Field Sensor for Rail Vehicle

Liu

Sun²,

Zhao³

et al. 2022

Journal of Sensors

View full text Add to dashboard Cite

show abstract

“…As an important note, increasing the decoherence parameter, influences the intensity distribution. In multi-slits, this effect seems to be destructive, as shown in figures (5)(6)(7). Destructive effects of partial coherence beam on the interference patterns have been approved and documented [11][12].…”

Section: Resultsmentioning

confidence: 97%

“…. Figure (7). Intensity distribution from four slits with a=90 microns, b=30 microns and different numbers of coherence length: (a) perfect temporal coherence ( 0…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Diffraction of Partial Temporal Coherence Beam From Multi Slits

Koushki

Alavi

2021

Preprint

View full text Add to dashboard Cite

We have generalized the notion of Franhoufer diffraction of temporal coherent light from a single slit to the case of arbitrary n -slits. A general numerical method has been developed for the simulation of the diffraction pattern of multi-slits which is also used to study the effects of coherence length on the diffraction pattern. The diffraction pattern is investigated for different values of recently introduced parameter “decoherence parameter”. It is shown that for multi-slits, the temporal decoherence effects appear for . The results of our study reproduce the previous studies for perfect temporal case, when coherence length tends to infinity.

show abstract

“…Fraunhofer diffraction is an important and fundamental phenomenon in wave optics [1] , [2] , [3] , [4] , [5] , [6] , [7] , [8] , [9] , [10] , [11] , [12] , [13] , [14] , [15] , [16] , [17] , [18] , [19] . When a monochromatic light with a wavelength λ is illuminated on N -equidistant multiple slits with a slit width ( a ) and slit separation ( d ), the irradiance distribution of the diffracted light in the Fraunhofer regime is expressed as:

where

is the irradiance of the central angular position, and θ is the angular position of the diffracted light.…”

Section: Introductionmentioning

confidence: 99%