Special Topic: Quantum sensing with correlated light sources
نویسندگان
چکیده
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منابع مشابه
Semiconductor quantum light sources
Applying quantum light states to photonic applications allows functionalities that are not possible using ‘ordinary’ classical light. For example, carrying information with single photons provides a means to test the secrecy of optical communications, which could soon be applied to the problem of sharing digital cryptographic keys1,2. Although secure quantum-key-distribution systems based on we...
متن کاملQuantum dot polarized light sources
The design, operation and performance of quantum dot spin-polarized vertical cavity surface emitting lasers (VCSELs) and single-photon sources are described and discussed. The effects of spin-induced gain anisotropy on output polarization and threshold current reduction have been studied along with the high-frequency response in a spin-polarized VCSEL. While the output circular polarization in ...
متن کاملBlind Separation of Jointly Stationary Correlated Sources
The separation of unobserved sources from mixed observed data is a fundamental signal processing problem. Most of the proposed techniques for solving this problem rely on independence or at least uncorrelation assumption for source signals. This paper introduces a technique for cases that source signals are correlated with each other. The method uses Wold decomposition principle for extracting ...
متن کاملInvestigation of germanium quantum-well light sources.
In this paper, we report a broad investigation of the optical properties of germanium (Ge) quantum-well devices. Our simulations show a significant increase of carrier density in the Ge quantum wells. Photoluminescence (PL) measurements show the enhanced direct-bandgap radiative recombination rates due to the carrier density increase in the Ge quantum wells. Electroluminescence (EL) measurement...
متن کاملEngineered optical nonlinearity for quantum light sources.
Many applications in optical quantum information processing benefit from careful spectral shaping of single-photon wave-packets. In this paper we tailor the joint spectral wave-function of photons created in parametric downconversion by engineering the nonlinearity profile of a poled crystal. We designed a crystal with an approximately Gaussian nonlinearity profile and confirmed successful wave...
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ژورنال
عنوان ژورنال: Applied Physics Letters
سال: 2021
ISSN: ['1520-8842', '0003-6951', '1077-3118']
DOI: https://doi.org/10.1063/5.0041043