Transformation of a single-photon field into bunches of pulses

Shakhmuratov, R. N.; Vagizov, F. G.; Antonov, V. A.; Radeonychev, Y. V.; Scully, Marlan O.; Kocharovskaya, Оlga

doi:10.1103/physreva.92.023836

Cited by 35 publications

(61 citation statements)

References 66 publications

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“…A rapidly developing field of science, which is known as γ-ray (or hard x-ray) quantum optics based on Mössbauer effect, provides unambiguous test of many concepts and ideas of coherent quantum optics with γ-photons resonantly interacting with ensemble of nuclei. Recent experimental achievements in this domain include electromagnetically induced transparency in a cavity [12], the collective Lamb shift [13], vacuum-assisted generation of atomic coherences [14], single-photon supperradiance in nuclear absorbing multilayer structures [15], slow gamma photon [16], subluminal pulse propagation using nuclear resonances [17], photon shaping [18,19], and γ-echo [20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Application of the Mössbauer effect to the study of subnanometer harmonic displacements in thin solids

Shakhmuratov

Vagizov

2017

Phys. Rev. B

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We measure subnanometer displacements of thin samples vibrated by piezotransducer. Samples contain 57 Fe nuclei, which are exposed to 14.4 keV γ-radiation. Vibration produces sidebands from a single absorption line of the sample. The sideband intensities depend on the vibration amplitude and its distribution along the sample. We developed a model of this distribution, which adequately describes the spectra of powder and stainless steel (SS) absorbers. We propose to filter γ-radiation through a small round hole in the lead mask, placed before the absorber. In this case only a small spot of the vibrated absorber is observed. We found for SS foil that nuclei, exposed to γ-radiation in this small spot, vibrate with almost the same amplitudes whose difference does not exceed a few picometers within the irradiated area.

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Section: Introductionmentioning

confidence: 99%

Application of the Mössbauer effect to the study of subnanometer harmonic displacements in thin solids

Shakhmuratov

Vagizov

2017

Phys. Rev. B

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“…However, in spite of following dispersion compensator, which is accomplished in [7,8] by near resonance absorber containing alkaline vapor, subsequent absorption (removal) of a particular spectral component is used [18,19]. This removal method is much more flexible compared with the frequency chirping followed by a dispersive compensators [7,8] and allows fine control of the duration and repetition rate of the pulses.…”

Section: Introductionmentioning

confidence: 99%

“…This technique was experimentally tested with gamma photons having long coherence length (long duration of a single-photon wave packet) and the method of splitting of a single photon into pulses [18,19] was proposed to create time-bin qubits, whose concept was introduced before in [20,21] for optical photons.…”

Section: Introductionmentioning

confidence: 99%

“…The method [18,19] is based on frequency modulation of the radiation field, which is also one of the basic elements of the frequency chirping, implemented in [7,8] by electro-optic modulator. However, in spite of following dispersion compensator, which is accomplished in [7,8] by near resonance absorber containing alkaline vapor, subsequent absorption (removal) of a particular spectral component is used [18,19].…”

Section: Introductionmentioning

confidence: 99%

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Transformation of the frequency-modulated continuous-wave field into a train of short pulses by resonant filters

Shakhmuratov

2017

Phys. Rev. A

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The resonant filtering method transforming frequency modulated radiation field into a train of short pulses is proposed to apply in optical domain. Effective frequency modulation can be achieved by electro-optic modulator or by resonant frequency modulation of the filter with a narrow absorption line. Due to frequency modulation narrow-spectrum CW radiation field is seen by the resonant filter as a comb of equidistant spectral components separated by the modulation frequency.Tuning narrow-bandwidth filter in resonance with n-th spectral component of the comb transforms the radiation field into bunches of pulses with n pulses in each bunch. The transformation is explained by the interference of the coherently scattered resonant component of the field with the whole comb. Constructive interference results in formation of pulses, while destructive interference is seen as dark windows between pulses. It is found that the optimal thickness of the resonant filter is several orders of magnitude smaller than the necessary thickness of the dispersive filters used before in optical domain to produce short pulses from the frequency modulated field.

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“…Nonlinear interactions between x-rays and nuclei are a promising candidate to control x-ray pulses, which remains challenging so far [6,13,14,17]. High-performance control over x-rays is compulsory if also x-ray qubit applications in quantum information or cryptography are to be realized [16,18], such as, for instance, preparation of entangled ensembles [19], generation of squeezed states [20], quantum memories [21,22] or photonic circuits [23][24][25][26], already accomplished in the long-wavelength regime. Main difficulties compared to the optical regime are the lack of high quality factor cavities and of suitable level schemes that would facilitate established control schemes.…”

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confidence: 99%

Stopping Narrow-Band X-Ray Pulses in Nuclear Media

Kong

Pálffy

2016

Phys. Rev. Lett.

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A control mechanism for stopping x-ray pulses in resonant nuclear media is investigated theoretically. We show that narrow-band x-ray pulses can be mapped and stored as nuclear coherence in a thin-film planar x-ray cavity with an embedded 57 Fe nuclear layer. The pulse is nearly resonant to the 14.4 keV Mössbauer transition in the 57 Fe nuclei. The role of the control field is played here by a hyperfine magnetic field which induces interference effects reminding of electromagnetically induced transparency. We show that by switching off the control magnetic field, a narrow-band x-ray pulse can be completely stored in the cavity for approximately hundred ns. Additional manipulation of the external magnetic field can lead to both group velocity and phase control of the pulse in the x-ray cavity sample. PACS numbers: 78.70.Ck, 42.50.Md, 42.50.Nn, 76.80.+y Keywords: Recent years have witnessed the commissioning of coherent x-ray sources opening the new field of x-ray quantum optics [1].While not yet as advanced as its optical counterpart, the latter may enable coherent control of x-rays, with potential applications for the fields of metrology, material science, quantum information, biology and chemistry. The desirable properties of x-rays are deeper penetration, better focus, no longer limited by an inconvenient diffraction limit as for optical photons, correspondingly spatial resolution, robustness, and the large momentum transfer they may produce. A peculiar circumstance is that x-rays are resonant to either inner shell electron transitions in (highly) charged ions [2-4], or transitions in atomic nuclei [5,6]. First experiments towards the demonstration of nonlinear phenomena with x-rays have been performed with atoms [7][8][9][10] and nuclei [6,[11][12][13][14][15][16]. Nonlinear interactions between x-rays and nuclei are a promising candidate to control x-ray pulses, which remains challenging so far [6,13,14,17]. High-performance control over x-rays is compulsory if also x-ray qubit applications in quantum information or cryptography are to be realized [16,18], such as, for instance, preparation of entangled ensembles [19], generation of squeezed states [20], quantum memories [21,22] or photonic circuits [23][24][25][26], already accomplished in the long-wavelength regime. Main difficulties compared to the optical regime are the lack of high quality factor cavities and of suitable level schemes that would facilitate established control schemes.In this Letter, we demonstrate from the theory side that a spectrally narrow x-ray pulse can be mapped and stored as nuclear coherence in a thin-film planar x-ray cavity [27] with embedded layers containing nuclei with a transition resonant to the x-ray pulse. This novel storage mechanism relies on interference effects possible due to the occurrence of spontaneously generated coherences specific to the nuclear system [12]. We lay out the theoretical formalism for describing this system and show that storage can be described by the formation of a dark-state polariton [28...

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Transformation of a single-photon field into bunches of pulses

Cited by 35 publications

References 66 publications

Application of the Mössbauer effect to the study of subnanometer harmonic displacements in thin solids

Application of the Mössbauer effect to the study of subnanometer harmonic displacements in thin solids

Transformation of the frequency-modulated continuous-wave field into a train of short pulses by resonant filters

Stopping Narrow-Band X-Ray Pulses in Nuclear Media

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