Resonant Optical Faraday Rotator

Rosenberg, Robert L.; Rubinstein, C. B.; Herriott, D. R.

doi:10.1364/ao.3.001079

Cited by 59 publications

(34 citation statements)

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“…Assuming a predicted shot noise sensitivity given by Eq. (14), the maximum useful finesse up to which one gains in signal to noise ratio is determined by,…”

Section: Consequences Of Resultsmentioning

confidence: 99%

“…As we will see in the following section, one way to enhance the induced ellipticity is to increase the effective length of the magnetic field region using a Fabry-Perot cavity with finesse F . Such a cavity enhances an ellipticity (or a rotation) by a factor N = 2F /π [14][15][16][17] which, today, can be as high as N = 4.5 × 10 5 [18]. Several experiments are underway, of which the most sensitive at present are based on polarimeters with such very high finesse Fabry-Perot cavities [19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

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Intrinsic mirror noise in Fabry–Perot based polarimeters: the case for the measurement of vacuum magnetic birefringence

et al. 2018

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Although experimental efforts have been active for about 30 years, a direct laboratory observation of vacuum magnetic birefringence, due to vacuum fluctuations, still needs confirmation: the predicted birefringence of vacuum is n = 4.0 × 10 −24 @ 1 T. Key ingredients of a polarimeter for detecting such a small birefringence are a long optical path within the magnetic field and a time dependent effect. To lengthen the optical path a Fabry-Perot is generally used with a finesse ranging from F ≈ 10 4 to F ≈ 7 × 10 5 . Interestingly, there is a difficulty in reaching the predicted shot noise limit of such polarimeters. We have measured the ellipticity and rotation noises along with Cotton-Mouton and Faraday effects as a function of the finesse of the cavity of the PVLAS polarimeter. The observations are consistent with the idea that the cavity mirrors generate a birefringencedominated noise whose ellipticity is amplified by the cavity itself. The optical path difference sensitivity at 10 Hz is S D = 6 × 10 −19 m/ √ Hz, a value which we believe is consistent with an intrinsic thermal noise in the mirror coatings. Our findings prove that the continuous efforts to increase the finesse of the cavity to improve the sensitivity has reached a limit.

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“…Assuming a predicted shot noise sensitivity given by Eq. (14), the maximum useful finesse up to which one gains in signal to noise ratio is determined by,…”

Section: Consequences Of Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Intrinsic mirror noise in Fabry–Perot based polarimeters: the case for the measurement of vacuum magnetic birefringence

et al. 2018

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“…In one of the first papers (Rosenberg et al, 1964) it was shown that the Faraday rotation can be resonantly enhanced by a FabryPerot resonator. The importance of considering the effects of internal multiple reflections in the measurements of the Faraday rotation angle was noted by the authors (Piller 1966;Rheinhlander et al, 1975;Stramska et al 1968;Srivastava et al, 1975;Vorobev et al, 1972).…”

Section: Introductionmentioning

confidence: 99%

Transmission, Reflection and Thermal Radiation of a Magneto-Optical Fabry-Perot Resonator in Magnetic Field: Investigations and Applications

Liptuga¹,

Morozhenko²,

Pipa³

2012

Infrared Radiation

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“…Although much attention has been given to the investigation of transmission and reflection of magneto-optical single-layered [2][3][4][5][6] and multilayer [6][7][8][9][10] resonator structures, there are a number of questions, which require more careful investigation. This paper is dedicated to the theoretical and experimental investigation of the influence of the magnetic field to angular, spectral and polarization characteristics of transmission, reflection and emissivity of a singlelayered Faraday-active Fabry-Perot resonator (F AFR).…”

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confidence: 99%

“…The theoretical approach presented here is more general than previous work. In contrast to previous work [2][3][4][5][7][8][9][10], where the recurrent summing up of multiple reflections was used, the presented theory is based on the method of boundary conditions with the application of 4 x 4 matrices. Unlike the theoretical matrix approach in [6], here the dependence of the dielectric tensor of a magneto-active medium on the applied magnetic field is not limited to linear approximation.…”

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confidence: 99%

Faraday-active Fabry–Perot resonator: transmission, reflection, and emissivity

et al. 2012

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The propagation of light within a semiconductor Faraday-active Fabry-Perot resonator (F AFR) is investigated theoretically and experimentally. It is shown that an external magnetic field radically changes the angular and spectral characteristics of transmission, reflection and emissivity of the resonator not only for polarized, but also for unpolarized light. Suppression of interference patterns and phase inversion of the interference extrema were observed in both monochromatic and polychromatic light. The investigations were carried out for the planeparallel plates of n-InAs in the spectral range of free charge carrier absorption. The results can be used to create new controllable optical and spectroscopic devices for investigation of Faradayactive material properties and for control of parameters of plane-parallel layers and structures.

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Resonant Optical Faraday Rotator

Cited by 59 publications

References 1 publication

Intrinsic mirror noise in Fabry–Perot based polarimeters: the case for the measurement of vacuum magnetic birefringence

Intrinsic mirror noise in Fabry–Perot based polarimeters: the case for the measurement of vacuum magnetic birefringence

Transmission, Reflection and Thermal Radiation of a Magneto-Optical Fabry-Perot Resonator in Magnetic Field: Investigations and Applications

Faraday-active Fabry–Perot resonator: transmission, reflection, and emissivity

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