Entangled-Photon Virtual-State Spectroscopy

Saleh, Bahaa E. A.; Jost, Bradley M.; Fei, Hong-Bing; Teich, Malvin C.

doi:10.1103/physrevlett.80.3483

Cited by 162 publications

(230 citation statements)

References 19 publications

(26 reference statements)

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“…the net gain or loss). We had previously shown how the entangled twin photon state may be used to manipulate two-photon absorption ω 1 + ω 2 type resonances in aggregates (Dorfman and Mukamel, 2014b;Lee and Goodson, 2006;Saleh et al, 1998; but these ideas do not apply to Raman ω 1 − ω 2 resonances.…”

Section: Coincidence Detection Of Femtosecond Stimulated Raman Signalsmentioning

confidence: 99%

Nonlinear optical signals and spectroscopy with quantum light

2016

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Conventional nonlinear spectroscopy uses classical light to detect matter properties through the variation of its response with frequencies or time delays. Quantum light opens up new avenues for spectroscopy by utilizing parameters of the quantum state of light as novel control knobs and through the variation of photon statistics by coupling to matter. We present an intuitive diagrammatic approach for calculating ultrafast spectroscopy signals induced by quantum light, focusing on applications involving entangled photons with nonclassical bandwidth properties -known as "time-energy entanglement". Nonlinear optical signals induced by quantized light fields are expressed using time ordered multipoint correlation functions of superoperators in the joint field plus matter phase space. These are distinct from Glauber's photon counting formalism which use normally ordered products of ordinary operators in the field space. One notable advantage for spectroscopy applications is that entangled photon pairs are not subjected to the classical Fourier limitations on the joint temporal and spectral resolution. After a brief survey of properties of entangled photon pairs relevant to their spectroscopic applications, different optical signals, and photon counting setups are discussed and illustrated for simple multi-level model systems.

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Section: Coincidence Detection Of Femtosecond Stimulated Raman Signalsmentioning

confidence: 99%

Nonlinear optical signals and spectroscopy with quantum light

2016

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“…, where the functions u k and v k are given by equations (10) and (11). We assume that fields 1 and 2 are initially in the vacuum state.…”

Section: Appendix a The Four-point Field Correlation Functionmentioning

confidence: 99%

“…Applications to spectroscopy received considerable attention in experiments [6][7][8][9] as well as in theoretical works [10][11][12][13][14][15][16]. These prospects necessitate the adaption of quantum information concepts to spectroscopic applications.…”

Section: Introductionmentioning

confidence: 99%

Photon statistics of intense entangled photon pulses

Schlawin

Mukamel

2013

J. Phys. B: At. Mol. Opt. Phys.

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Time-and frequency-gated two-photon counting is given by a four-time correlation function of the electric field. This reduces to two times with purely time gating. We calculate this function for entangled photon pulses generated by parametric down-conversion. At low intensity, the pulses consist of well-separated photon pairs, and crossover to squeezed light as the intensity is increased. This is illustrated by the two-photon absorption signal of a three-level model, which scales linearly for a weak pump intensity where both photons come from the same pair, and gradually becomes nonlinear as the intensity is increased. We find that the strong frequency correlations of entangled photon pairs persist even for higher photon numbers. This could help facilitate the application of these pulses to nonlinear spectroscopy, where these correlations can be used to manipulate congested signals.

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“…The negligible parasitic loss of the coupling junction [11], the direct coupling to an ultralow loss transport medium (optical fiber), and the high modal purity of toroidal microcavities (single transverse mode oscillation) are important prerequisites for both applied and quantum optical studies. Microcavity generation of nonclassical states could be of particular interest in quantum information [3] and quantum optical studies [2,[30][31][32] as well as for novel bio-imaging schemes based on entanglement [33].…”

Section: Volume 93 Number 8 P H Y S I C a L R E V I E W L E T T E R mentioning

confidence: 99%

Kerr-Nonlinearity Optical Parametric Oscillation in an Ultrahigh-QToroid Microcavity

2004

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Kerr-nonlinearity induced optical parametric oscillation in a microcavity is reported for the first time. Geometrical control of toroid microcavities enables a transition from stimulated Raman to optical parametric-oscillation regimes. Optical parametric oscillation is observed at record low threshold levels (174 micro-Watts of launched power) more than 2 orders of magnitude lower than for optical-fiberbased optical parametric oscillation. In addition to their microscopic size (typically tens of microns), these oscillators are wafer based, exhibit high conversion efficiency (36%), and are operating in a highly ideal ''two photon'' emission regime, with near-unity (0:97 0:03) idler-to-signal ratio.

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Entangled-Photon Virtual-State Spectroscopy

Cited by 162 publications

References 19 publications

Nonlinear optical signals and spectroscopy with quantum light

Nonlinear optical signals and spectroscopy with quantum light

Photon statistics of intense entangled photon pulses

Kerr-Nonlinearity Optical Parametric Oscillation in an Ultrahigh-QToroid Microcavity

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