Observation of optical redshifts and blueshifts produced by source correlations

Gori, F.; Guattari, G.; Palma, C.; Padovani, C.

doi:10.1016/0030-4018(88)90078-8

Cited by 96 publications

(11 citation statements)

References 9 publications

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“…The resulting Wolf shift has been first experimentally dernonstrated for two acoustic sources driven by correlated noise [15]. It was also later demonstrated for two correlated optical sources, created by joint illumination of two slits with light from the two spectrally filtered halogen lamps [16]. In our experiment, the optical beams emitted from the two arms of the interferometer can also be interpreted as spectrally correlated sources, the separation now being in the time domain instead of the space domain.…”

Section: Discussionsupporting

confidence: 60%

Observation of the stochastic realization shift in the weak-field limit

Exter¹,

Boersma²,

Doorn³

et al. 1994

Phys. Rev. A

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The amplitude-phase coupling of a stochastically varying field has been predicted to lead to a shift of the effective resonance frequency when this field interacts with a two-level system. Experimentally, we have generated such a field by passing a semiconductor laser beam through a Michelson interferometer, thereby converting part of the intrinsic phase flucutations into amplitude fluctuations. We find indeed a shifted resonance frequency when this beam interacts with the Rb D& transition. Depending on the path-length diference of the interferometer, shifts of more than 10 MHz have been measured. The experiments have been performed in the weak-field limit. This allows a convolution-type interpretation of the stochastic realization shift. PACS number(s): 42.50.Ar, 42.25.Hz, 32.30.r, 07.65.b

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Section: Discussionsupporting

confidence: 60%

Observation of the stochastic realization shift in the weak-field limit

Exter¹,

Boersma²,

Doorn³

et al. 1994

Phys. Rev. A

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“…(i.e., blue light) if the correlation width is fixed. This theoretical finding was confirmed by some experiments soon afterwards [30][31][32][33]. Similarly, the spectral structure of the scattering field is seen to vary with the correlation width of the scattering medium if the angle of scattering is fixed.…”

supporting

confidence: 59%

Spectral Changes of Light and Scattering Phenomena

Shirai¹,

Asakura

1996

OPT REV

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In the last few years renewed attention has been paid to the study of light scattering from random media. This is due to the recent discovery of a phenomenon that dynamic light scattering from a fluctuating random medium may produce shifts of spectral lines, even when the source and the scattering medium are at rest relative to the observer. It has also been demonstrated that a similar phenomenon may occur in static light scattering from spatially random media without dynamic fluctuations. By the well-known analogy between the processes of scattering and radiation, these phenomena in scattering are found to be closely related to the correlation-induced spectral changes in the coherence theory which are often referred to as the Wolf effect. In this paper some recent developments are reviewed on research regarding the phenomena of changes in the spectrum of light induced by scattering from random media. Emphasis is placed on a number of up-to-date attempts for elucidating the effects of multiple scattering on these phenomena.

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“…Since Wolf first revealed that a partially coherent light beam undergoes spectral shift during its propagation in free space, 39,40 this phenomenon has become an attractive topic in optics, both theoretically 41,42 and experimentally. 43,44 Recently Palma et al studied the spectral changes in Gaussian-cavity lasers and the spectral shift of a GSM beam beyond a thin lens. 45,46 The phenomenon of spectral switch of a partially coherent beam has been studied in detail both theoretically and experimentally.…”

Section: Spectrum Properties In the Fractional Fourier Transform Planementioning

confidence: 99%

Transformation and spectrum properties of partially coherent beams in the fractional Fourier transform plane

Cai

Lin

2003

J. Opt. Soc. Am. A

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An analytical and concise formula is derived for the fractional Fourier transform (FRT) of partially coherent beams that is based on the tensorial propagation formula of the cross-spectral density of partially coherent twisted anisotropic Gaussian-Schell-model (GSM) beams. The corresponding tensor ABCD law performing the FRT is obtained. The connections between the FRT formula and the generalized diffraction integral formulas for partially coherent beams passing through aligned optical systems and misaligned optical systems are discussed. With use of the derived formula, the transformation and spectrum properties of partially coherent GSM beams in the FRT plane are studied in detail. The results show that the fractional order of the FRT has strong effects on the transformation properties and the spectrum properties of partially coherent GSM beams. Our method provides a simple and convenient way to study the FRT of twisted anisotropic GSM beams.

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Observation of optical redshifts and blueshifts produced by source correlations

Cited by 96 publications

References 9 publications

Observation of the stochastic realization shift in the weak-field limit

Observation of the stochastic realization shift in the weak-field limit

Spectral Changes of Light and Scattering Phenomena

Transformation and spectrum properties of partially coherent beams in the fractional Fourier transform plane

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