Coherent Resonant X-Ray Scattering from a Rotating Medium

Röhlsberger, Ralf; Toellner, T. S.; Sturhahn, W.; Quast, K. W.; E., E.; Bernhard, Axel; Burkel, E.; Leupold, O.; Gerdau, E.

doi:10.1103/physrevlett.84.1007

Cited by 50 publications

(37 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This method enables the detection of the time spectra of nuclides whose excited states have very short lifetimes and high energies by rotating the sample at an appropriately high frequency (on the order of 1 kHz). [26][27][28] If the recoilless fraction of the sample is small or zero, coherent forward scattering is not an efficient tool. This is the case in materials with resonant atoms in soft surroundings such as liquids, biological materials, polymers, and plastics.…”

Section: Time Domain Measurementmentioning

confidence: 99%

“…26) The lighthouse effect is the progression of the radiative decay of excited states in the tangential direction when nuclei in a rotating sample are coherently excited. When this occurs, the time evolution of the nuclear decay is mapped onto an angular scale, and signals can be detected using a positionsensitive detector without time resolution (in the ideal case).…”

Section: Time 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%

See 2 more Smart Citations

Condensed Matter Physics Using Nuclear Resonant Scattering

Seto

2013

J. Phys. Soc. Jpn.

View full text Add to dashboard Cite

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.

show abstract

Section: Time Domain Measurementmentioning

confidence: 99%

Section: Time Domain Measurementmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Condensed Matter Physics Using Nuclear Resonant Scattering

Seto

2013

J. Phys. Soc. Jpn.

View full text Add to dashboard Cite

show abstract

“…We propose to implement the required gradient by an inhomogeneous magnetic field exploiting the Zeeman effect. Because this phenomenon is reminiscent of an effect studied in nuclear physics called the "lighthouse effect" [10][11][12][13], we call this effect the "atomic lighthouse effect. "…”

Section: Introductionmentioning

confidence: 99%

Atomic lighthouse effect

Máximo

Kaiser²,

Courteille³

et al. 2014

J. Opt. Soc. Am. A

View full text Add to dashboard Cite

We investigate the deflection of light by a cold atomic cloud when the light-matter interaction is locally tuned via the Zeeman effect using magnetic field gradients. This "lighthouse" effect is strongest in the single-scattering regime, where deviation of the incident field is largest. For optically dense samples, the deviation is reduced by collective effects, as the increase in linewidth leads to a decrease in magnetic field efficiency.

show abstract

“…The mirror reflection disabling can be achieved, for instance, by using a strong x-ray focus together with a sub-ns piezoelectric Pb(Zr, Ti)O 3 (PZT) x-ray switch [65] to rapidly move the mirror in and out of the x-ray beam line. Alternatively, by taking advantage of the µrad sensitivity of Bragg reflection to the incidence angle, a fast rotation of the mirror [66] can make the diamond crystal shift from reflection to transparency. Concerning the magnetic field control, the results presented here consider the situation when the hyperfine magnetic field can be switched off and on as discussed in Ref.…”

mentioning

confidence: 99%

Proposed Entanglement of X-ray Nuclear Polaritons as a Potential Method for Probing Matter at the Subatomic Scale

Liao

Pálffy

2014

Phys. Rev. Lett.

View full text Add to dashboard Cite

A setup for generating the special superposition of a simultaneously forward-and backward-propagating collective excitation in a nuclear sample is studied. We show that by actively manipulating the scattering channels of single x-ray quanta with the help of a normal incidence x-ray mirror, a nuclear polariton which propagates in two opposite directions can be generated. The two counterpropagating polariton branches are entangled by a single x-ray photon. The quantum nature of the nuclear excitation entanglement gives rise to a subangstromwavelength standing wave excitation pattern that can be used as a flexible tool to probe matter dynamically on the subatomic scale. PACS numbers: 78.70.Ck, 03.67.Bg, 42.50.Nn, 76.80.+y Keywords: x-ray quantum optics, entanglement, interference effects, nuclear forward scattering Optical lasers have been at the heart of quantum physics for the last decades. The commissioning of the first x-ray free electron lasers (XFEL) [1][2][3][4][5] and the developments of x-ray optics elements [6][7][8][9][10][11][12] bring into play higher photon frequencies and promote the emerging field of x-ray quantum optics [13]. Apart from a powerful imaging tool, coherent x-ray light may also offer a solution for avoiding the diffraction limit bottleneck for compact photonic devices [14,15], and render possible the coherent control of transitions in ions [16][17][18][19][20] and nuclei [21][22][23][24][25][26][27]. Furthermore, new x-ray optical elements such as beam splitters [12] and mirrors [9,10] lay the foundation for developing quantum interferometers and controlling the quantum behavior of single x-ray photons. Apart from their potential in the field of quantum information [28,29], the probing proficiency of single x-ray quanta would be an appreciated counterpart to traditional x-ray imaging techniques with intense x-ray beams [30].In this Letter we present a coherent control scheme that exploits the quantum properties of a single x-ray photon to generate nuclear polariton entanglement and a subangstromwavelength standing wave excitation pattern. The key for our setup is a special superposition of a simultaneously forwardand backward-propagating collective excitation in a nuclear sample. The system comprising a single x-ray photon resonantly propagating through a sample of 57 Fe Mössbauer nuclei forms a nuclear polariton [31][32][33][34]. We show how with the help of a normal incidence x-ray mirror [10], this polariton can be split in two entangled counterpropagating branches that share the same single photon. By actively distributing the single-photon wave packet in a controlled way, both the symmetric and the antisymmetric versions of polariton entanglement can be achieved. This leads to the creation of a standingwave nuclear excitation pattern with subangstrom-wavelength in the absence of any x-ray cavity or Bragg condition in the sample. In conjunction with phonon excitation, this standing wave can be used to dynamically probe the sample lattice using a single x-ray photon.The underlying p...

show abstract

Coherent Resonant X-Ray Scattering from a Rotating Medium

Cited by 50 publications

References 16 publications

Condensed Matter Physics Using Nuclear Resonant Scattering

Condensed Matter Physics Using Nuclear Resonant Scattering

Atomic lighthouse effect

Proposed Entanglement of X-ray Nuclear Polaritons as a Potential Method for Probing Matter at the Subatomic Scale

Contact Info

Product

Resources

About