Study on optical electron polarimeter and measurement of the relative Stokes parameters of weak light

Cunjun, Ruan; Wen-Ning, Pang; Junfang, Gao; Ren-Cheng, Shang

doi:10.1088/1009-1963/11/2/305

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“…Optical electron polarimeters 5,6,[8][9][10][11][12][13][14][15][16][17] have no such constraints. In these devices, polarized electrons excite an atomic target, usually a noble gas, by exchange.…”

Section: Introductionmentioning

confidence: 99%

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Compact inline optical electron polarimeter

Pirbhai

Ryan

Richards

et al. 2013

Review of Scientific Instruments

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A compact optical electron polarimeter using a helium target is described. It offers a maximum fluorescence detection efficiency of ~20 Hz/nA, which is an order of magnitude higher than that of earlier designs. With an argon target, this device is expected to have a polarimetric figure-of-merit of 270 Hz/nA. By relying on a magnetic field to guide a longitudinally spin-polarized electron beam, the present instrument employs fewer electrodes. It also uses a commercially available integrated photon counting module. These features allow it to occupy a smaller volume and make it easier to operate.

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Section: Introductionmentioning

confidence: 99%

“…It also occupies a quarter the volume. Unlike earlier helium optical electron polarimeters, [10][11][12][13][14][15] which were designed for transversely polarized particles, this model can measure the polarization of longitudinally polarized beams.…”

Section: Introductionmentioning

confidence: 99%