Results 61 to 70 of about 13,197 (190)

Generating entanglement of photon-number states with coherent light via cross-Kerr nonlinearity

open access: yes, 2007
We propose a scheme for generating entangled states of light fields. This scheme only requires the cross-Kerr nonlinear interaction between coherent light-beams, followed by a homodyne detection.
Bachor H A   +7 more
core   +1 more source

Optical Kerr Gating as a Strategy for Noise Reduction in Femtosecond Stimulated Raman Spectroscopy

open access: yesJournal of Raman Spectroscopy, EarlyView.
We report an experimental approach, where an Optical Kerr gate is incorporated with Femtosecond Stimulated Raman Spectrometry (FSRS). The gate functions as a temporal filter that preferentially suppresses the FSRS inherent background. FSRS spectra are reported with the Kerr‐gated methodology with significantly improved SNR compared to the conventional ...
Spyridon Kaziannis   +5 more
wiley   +1 more source

A V-shape superconducting artificial atom based on two inductively coupled transmons

open access: yes, 2015
Circuit quantum electrodynamics systems are typically built from resonators and two-level artificial atoms, but the use of multi-level artificial atoms instead can enable promising applications in quantum technology.
Buisson, O.   +7 more
core   +3 more sources

Efficient First‐Principles Inverse Design of Nanolasers

open access: yesLaser &Photonics Reviews, EarlyView.
This article introduces a first‐principles inverse‐design framework for nanolasers that directly incorporates nonlinear lasing physics. By unifying steady‐state ab‐initio laser theory (SALT) with topology optimization, it reveals how spatial hole burning, gain saturation, and cavity‐emitter coupling shape laser performance, enabling efficient discovery
Beñat Martinez de Aguirre Jokisch   +5 more
wiley   +1 more source

Giant microwave–optical Kerr nonlinearity via Rydberg excitons in cuprous oxide

open access: yesAPL Photonics
Microwave–optical conversion is key to future networks of quantum devices, such as those based on superconducting technology. Conversion at the single quantum level requires strong nonlinearity, high bandwidth, and compatibility with a millikelvin ...
Jon D. Pritchett   +7 more
doaj   +1 more source

Probabilistically cloning two single-photon states using weak cross-Kerr nonlinearities

open access: yesNew Journal of Physics, 2014
By using quantum nondemolition detectors (QNDs) based on weak cross-Kerr nonlinearities, we propose an experimental scheme for achieving $1\to 2$ probabilistic quantum cloning (PQC) of a single-photon state, secretly choosing from a two-state set. In our
Wen Zhang   +3 more
doaj   +1 more source

Efficient Concentration Protocols for the Single-Photon Entanglement State with Polarization Feature

open access: yesFrontiers in Physics, 2017
We propose two efficient entanglement concentration protocols (ECPs) for arbitrary less-entangled single-photon entanglement state, in which the photon qubit has the polarization feature.
Lan Zhou   +6 more
doaj   +1 more source

Analysis of a Quantum Nondemolition Measurement Scheme Based on Kerr Nonlinearity in Photonic Crystal Waveguides

open access: yes, 2006
We discuss the feasibility of a quantum nondemolition measurement (QND) of photon number based on cross phase modulation due to the Kerr effect in Photonic Crystal Waveguides (PCWs).
Fushman, Ilya, Vuckovic, Jelena
core   +1 more source

Germanium‐Based Mid‐Infrared Integrated Photonics

open access: yesLaser &Photonics Reviews, EarlyView.
The mid‐infrared (mid‐IR) spectral range is a part of the electromagnetic spectrum in which most of the molecules have vibrational and rotational resonances. Photonics integration in this wavelength range have thus seen a burst of interest in the recent years, mainly driven by applications related with the detection of chemical and biological ...
Delphine Marris‐Morini   +6 more
wiley   +1 more source

Intrinsic optical bistability via switching between saturable and reverse saturable absorption

open access: yesScientific Reports
We present a novel approach to achieving intrinsic optical bistability and multistability through the interplay between saturable and reverse saturable absorption. Our findings reveal that the stable points on the optical bistability curve align with the
Seyed Morteza Mousavi, Mohammad Mahmoudi
doaj   +1 more source

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