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Large-area quantum networks based on optical fibers allow photons at near-infrared wavelengths to travel with minimal loss. Quantum frequency conversion is a method to alter the wavelength of a single photon while maintaining its quantum…

Quantum Physics · Physics 2025-06-09 Anica Hamer , Frank Vewinger , Michael H. Frosz , Simon Stellmer

Electronic Raman scattering experiments in a wide variety of materials (ranging from mixed-valence materials to Kondo insulators to high-temperature superconductors) show anomalous behavior in the B_{1g} channel when the system is on the…

Superconductivity · Physics 2007-05-23 J. K. Freericks , T. P. Devereaux

Quantum frequency conversion (QFC) between the visible and telecom is a key functionality to connect quantum memories over long distances in fiber-based quantum networks. Current QFC methods for linking such widely-separated frequencies,…

Optics · Physics 2022-07-21 Xiyuan Lu , Gregory Moille , Ashutosh Rao , Kartik Srinivasan

We introduce an experimental technique for complete phase-sensitive characterization of arbitrary unitary spectral-temporal transformations of optical modes. Our method recovers the complex spectral transfer function, or Green's function,…

When a laser pump beam of sufficient intensity is incident on a Raman-active medium such as hydrogen gas, a strong Stokes signal, red-shifted by the Raman transition frequency {\Omega}$_R$, is generated. This is accompanied by the creation…

Spontaneous Raman scattering (SpRS) is a weak non-linear effect, particularly relevant to classical-quantum coexistence transmission and sensing applications. In classical transmission, the relevant Raman effect is stimulated Raman…

Based on the interplay between photoionization and Raman effect in gas-filled photonic crystal fibers, we propose a new optical device to control frequency-conversion of ultrashort pulses. By tuning the input-pulse energy, the output…

Optics · Physics 2015-10-28 Mohammed F. Saleh , Fabio Biancalana

We present a method for deriving limits on Raman scattering in structured media and exploit it to constrain the maximum Raman signal resulting from a planewave incident on either a single Raman molecule in the vicinity of a structured…

A theoretical model of resonant hyper-Raman scattering by an ensemble of spherical semiconductor quantum dots has been developed. The electronic intermediate states are described as Wannier-Mott excitons in the framework of the envelope…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 E. Menendez-Proupin , C. Trallero-Giner , A. Garcia-Cristobal

We present a method to calculate the frequency components of a pump waveform driving a parametric oscillator, which realizes a desired frequency mixing or scattering between modes. The method is validated by numerical analysis and we study…

Quantum Physics · Physics 2025-12-18 Michele Cortinovis , Fabio Lingua , David B. Haviland

A method for the agile generation of the optical frequencies required for laser cooling and atom interferometry of rubidium is demonstrated. It relies on fiber Bragg grating technology to filter the output of an electro-optic modulator and…

Atomic Physics · Physics 2020-11-24 C. D. Macrae , K. Bongs , M. Holynski

The interplay of such cornerstones of modern nonlinear fiber optics as a nonlinearity, stochasticity and polarization leads to variety of the noise induced instabilities including polarization attraction and escape phenomena harnessing of…

Scattering of non-classical light is enabling new ways to study and control photon transport. However, advances in this field often rely on simplifying assumptions regarding the quantum light's generation and its source. In this work, we…

Quantum Physics · Physics 2025-11-12 Mamoon Safadi , Nir Kuchuk , Ohad Lib , Yaron Bromberg , Arthur Goetschy

We present an analytic theory of the diffraction of (matter) waves by a lattice in the "quasi-Bragg" regime, by which we mean the transition region between the long-interaction Bragg and "channelling" regimes and the short-interaction…

Atomic Physics · Physics 2008-02-08 Holger Mueller , Sheng-wey Chiow , Steven Chu

We propose a dual-pump third-order nonlinear scheme for producing pairs of correlated photons that is less susceptible to Raman noise than typical spontaneous four wave mixing methods (SFWM). Beginning with the full multimode Hamiltonian we…

Quantum Physics · Physics 2016-10-20 Daniel R. Blay , L. G. Helt , M. J. Steel

Hyperfine atomic states are among the most promising candidates for qubit encoding in quantum information processing. In atomic systems, hyperfine transitions are typically driven through a two-photon Raman process by a laser field which is…

Quantum frequency conversion (QFC), a critical technology in photonic quantum information science, requires that the quantum characteristics of the frequency-converted photon must be the same as the input photon except for the color. In…

Quantum Physics · Physics 2021-02-24 Chin-Yao Cheng , Jia-Juan Lee , Zi-Yu Liu , Jiun-Shiuan Shiu , Yong-Fan Chen

Backward stimulated Raman scattering in gases provides a promising route to compression and amplification of a Stokes seed-pulse by counter-propagating against a pump-pulse, as has been already demonstrated in various platforms, mainly in…

Optics · Physics 2018-05-08 Manoj K. Mridha , David Novoa , Philip St. J. Russell

Quantum state coherent frequency conversion processes-such as Bragg scattering four wave mixing (BSFWM)-hold promise as a flexible technique for networking heterogeneous and distant quantum systems. In this letter, we demonstrate BSFWM…

We investigate the effects of a squeezed pump on the quantum properties and conversion efficiency of the light produced in single-pass second harmonic generation. Using stochastic integration of the two-mode equations of motion in the…

Quantum Physics · Physics 2015-06-15 E. MArcellina , J. F. Corney , M. K. Olsen