The Faraday Effect in Gases and Vapors I*

Inǵersoll, L. R.; Liebenberg, D. H.

doi:10.1364/josa.44.000566

Cited by 41 publications

(15 citation statements)

References 6 publications

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“…The convention normally used in the literature reporting Verdet constants is exactly the opposite (see, e.g., Ref. 69) and a positive Verdet constant is reported under the same circumstances. We follow the chemical convention in this paper.…”

Section: Basis-set Convergencementioning

confidence: 99%

Nuclear spin circular dichroism

Vaara¹,

Rizzo²,

Kauczor³

et al. 2014

The Journal of Chemical Physics

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Articles you may be interested inMagnetic circular dichroism of symmetry and spin forbidden transitions of high-spin metal ions J. Chem. Phys. 113, 5003 (2000) Recent years have witnessed a growing interest in magneto-optic spectroscopy techniques that use nuclear magnetization as the source of the magnetic field. Here we present a formulation of magnetic circular dichroism (CD) due to magnetically polarized nuclei, nuclear spin-induced CD (NSCD), in molecules. The NSCD ellipticity and nuclear spin-induced optical rotation (NSOR) angle correspond to the real and imaginary parts, respectively, of (complex) quadratic response functions involving the dynamic second-order interaction of the electron system with the linearly polarized light beam, as well as the static magnetic hyperfine interaction. Using the complex polarization propagator framework, NSCD and NSOR signals are obtained at frequencies in the vicinity of optical excitations. Hartree-Fock and density-functional theory calculations on relatively small model systems, ethene, benzene, and 1,4-benzoquinone, demonstrate the feasibility of the method for obtaining relatively strong nuclear spin-induced ellipticity and optical rotation signals. Comparison of the proton and carbon-13 signals of ethanol reveals that these resonant phenomena facilitate chemical resolution between non-equivalent nuclei in magneto-optic spectra. © 2014 AIP Publishing LLC.

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Section: Basis-set Convergencementioning

confidence: 99%

Nuclear spin circular dichroism

Vaara¹,

Rizzo²,

Kauczor³

et al. 2014

The Journal of Chemical Physics

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show abstract

“…The Verdet constants of gases are smaller than liquids and solids by three orders of magnitude. 1,7 To measure the Faraday rotation in gases usually needs high magnetic field and long optical path length, 8 or cavity enhancement. 9 To induce the high magnetic field in Ingersoll's experiments, a large current of 11 A was used, so that a water flow was required to keep samples at constant temperature.…”

Section: Introductionmentioning

confidence: 99%

Sensitive Faraday rotation measurement with auto-balanced photodetection

Chang

Wang

Shy

et al. 2011

Review of Scientific Instruments

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A magneto-optic polarimetry based on auto-balanced photodetection is investigated. In this experiment, a commercial auto-balanced photoreceiver is adopted to measure the Faraday rotation of air. With a proper setup to utilize its noise cancellation capability, the measurement can be flexible and sensitive. The angular sensitivity is 2.99×10(-8) rad Hz(-1/2), which is about 2.7 times the shot noise limit. The measured Verdet constant of air is +1.39×10(-9) rad G(-1) cm(-1) at 634.8 nm. Significantly we applied a small AC current to induce the magnetic field, so there was no heating in the coil. In addition, a double current modulation scheme was used to demonstrate that there was no zero drift and amplifier instability in the measurement. The possibility of improvement of the angular sensitivity and the potential applications are also discussed.

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“…Comparison of our particle-hole CI Verdet constants (large squares, He; solid circles, Ne; open circles, Ar; triangles, Kr; stars, Xe) with values from[12] (solid curves) and the experimental measurements of[20] (solid curve with small squares).…”

mentioning

confidence: 99%

Particle-hole configuration-interaction polarizabilities and Verdet constants of noble-gas atoms

Savukov

2012

Phys. Rev. A

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Polarizabilities and Verdet constants are calculated using a relativistic particle-hole configuration-interaction (CI) method. Particle-hole CI is saturated by including quasicontinuum states built by enclosing an atom in a cavity. Agreement with experiment is achieved, and the method is more accurate than, for example, the Hartree-Fock method. The accuracy of the particle-hole CI method is limited by the omission of configurations with double excitations. Perturbation theory can be applied to account for these excitations, and we expect in the future to further improve the accuracy. The method can be also applied to the calculations of polarizabilities of excited states and can be generalized to other open-shell atoms.

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The Faraday Effect in Gases and Vapors I*

Cited by 41 publications

References 6 publications

Nuclear spin circular dichroism

Nuclear spin circular dichroism

Sensitive Faraday rotation measurement with auto-balanced photodetection

Particle-hole configuration-interaction polarizabilities and Verdet constants of noble-gas atoms

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