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Smirnov, G. V.

doi:10.1023/a:1017007520099

Cited by 122 publications

(37 citation statements)

References 20 publications

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“…A similar formula appears also in the work by Smirnov [2]. Using the same classical methods, Kagan et al [3] obtained…”

supporting

confidence: 63%

“…By considering the vibrating nuclei in the medium (target) as harmonic oscillators with a single natural frequency and solving simultaneously the forced harmonic-oscillator equation together with Maxwell's equations, Burnham and Chiao [4], in the late sixties, described the propagation of a coherent exciting pulse through a single resonant medium assuming infinite lifetimes. Their solution for the exiting electromagnetic field also predicts the time spectrum (2).…”

mentioning

confidence: 94%

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Time spectrum of a coherent pulse propagating through a single resonant medium

Friedman¹,

Steiner²,

Yudkin³

2015

EPL

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-A new formula for the delayed electromagnetic field and the time spectrum of a coherent synchrotron radiation pulse propagating through a single resonant medium is obtained. Unlike the commonly accepted one-term formula for such a time spectrum, our formula contains an additional term arising from the secondary radiation. This term helps to overcome some shortcomings of the accepted formula. Using the experimental data from the time spectrum of an enriched stainless-steel foil obtained recently at PETRA III (DESY, Hamburg) as a test case, our new formula provides a quality fit. Unlike the commonly available computer programs used by experimentalists, our fit does not require the averaging of the thickness parameter.

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“…A similar formula appears also in the work by Smirnov [2]. Using the same classical methods, Kagan et al [3] obtained…”

supporting

confidence: 63%

mentioning

confidence: 94%

Time spectrum of a coherent pulse propagating through a single resonant medium

Friedman¹,

Steiner²,

Yudkin³

2015

EPL

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“…Now to the response of a resonant nucleus to the XFELO radiation: The scattering or absorption form factor of a nucleus is [21] …”

Section: B Sources Of Phase Noisementioning

confidence: 99%

X-ray comb generation from nuclear-resonance-stabilized x-ray free-electron laser oscillator for fundamental physics and precision metrology

Adams

Kim

2015

Phys. Rev. ST Accel. Beams

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An x-ray free-electron laser oscillator (XFELO) is a next-generation x-ray source, similar to free-electron laser oscillators at VUV and longer wavelengths but using crystals as high-reflectivity x-ray mirrors. Each output pulse from an XFELO is fully coherent with high spectral purity. The temporal coherence length can further be increased drastically, from picoseconds to microseconds or even longer, by phase-locking successive XFELO output pulses, using the narrow nuclear resonance lines of nuclei such as 57 Fe as a reference. We show that the phase fluctuation due to the seismic activities is controllable and that due to spontaneous emission is small. The fluctuation of electron-bunch spacing contributes mainly to the envelope fluctuation but not to the phase fluctuation. By counting the number of standing-wave maxima formed by the output of the nuclear-resonance-stabilized (NRS) XFELO over an optically known length, the wavelength of the nuclear resonance can be accurately measured, possibly leading to a new length or frequency standard at x-ray wavelengths. A NRS-XFELO will be an ideal source for experimental x-ray quantum optics as well as other fundamental physics. The technique can be refined for other, narrower resonances such as 181 Ta or 45 Sc.

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“…To date, single-line Mössbauer sources have only been realized for 57 Fe using iron borate (FeBO 3 ) single crystals set under diffraction conditions at the Néel temperature (75.3 C). [13][14][15]32,33) In this method, the obtained Mössbauer radiation is collimated, polarized, and 100% recoilless, and the spectrum obtained using synchrotron Mössbauer sources is essentially identical to that obtained using conventional RI sources. Therefore, this approach is easily applicable to and beneficial for a wide range of studies using 57 Fe.…”

Section: Energy Domain Measurementmentioning

confidence: 99%

“…Other spectroscopic methods using nuclear resonant forward scattering have also been developed; the heterodyne (stroboscopic) detection method, [9][10][11] and a spectroscopic method that uses the ''nuclear lighthouse effect''. 12) On the other hand, Mössbauer spectra the same as the traditional Mössbauer spectra with RI sources can be measured using synchrotron Mössbauer sources obtained with pure nuclear Bragg scattering, [13][14][15] although 57 Fe has been the only available nuclide so far. Recently, a method yielding Mössbauer absorption-type spectra has been developed, and this method is not limited to 57 Fe and can be applied to many other Mössbauer nuclides.…”

Section: Introductionmentioning

confidence: 99%

Condensed Matter Physics Using Nuclear Resonant Scattering

Seto

2013

J. Phys. Soc. Jpn.

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Mössbauer spectroscopy is a powerful and well-established method used in a wide variety of scientific applications. An outstanding feature of this method is that element specific information on electronic and phonon states can be obtained. The use of high-brilliance synchrotron radiation as an excitation source for Mössbauer measurements enables measurements to be recorded under extreme conditions such as high pressures, very high or very low temperatures, and strong external magnetic fields. In addition, the tunability of synchrotron radiation energy allows a wide range of nuclides to be used. Moreover, the use of synchrotron radiation enables the measurement of the element-and sitespecific phonon density of states. Another unique property of the method is the narrow energy width of the nuclear excited states, due to which the method is an effective tool for studying the slow dynamics of soft matter and glass transitions. The concepts and methods involved in these measurements are introduced and discussed, and the unique features of the methods are highlighted.

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Untitled

Cited by 122 publications

References 20 publications

Time spectrum of a coherent pulse propagating through a single resonant medium

Time spectrum of a coherent pulse propagating through a single resonant medium

X-ray comb generation from nuclear-resonance-stabilized x-ray free-electron laser oscillator for fundamental physics and precision metrology

Condensed Matter Physics Using Nuclear Resonant Scattering

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