Strongly squeezed states at 532 nm based on frequency up-conversion

Autor:	Axel Schönbeck, Jaromír Fiurášek, Christina E. Vollmer, Christoph Baune, Jan Gniesmer, Roman Schnabel
Jazyk:	angličtina
Rok vydání:	2015
Předmět:	Physics Quantum Physics Noise suppression business.industry FOS: Physical sciences Context (language use) Atomic and Molecular Physics and Optics Wavelength Nonlinear system Interferometry Optics Quantum metrology Up conversion business Quantum Physics (quant-ph) Parametric statistics
Zdroj:	Optics Express
Popis:	Quantum metrology utilizes nonclassical states to improve the precision of measurement devices. In this context, strongly squeezed vacuum states of light have proven to be a useful resource. They are typically produced by spontaneous parametric down-conversion, but have not been generated at shorter wavelengths so far, as suitable nonlinear materials do not exist. Here, we report on the generation of strongly squeezed vacuum states at 532 nm with 5.5 dB noise suppression by means of frequency up-conversion from the telecommunication wavelength of 1550 nm. The up-converted states are employed in a model Mach-Zehnder interferometer to illustrate their use in quantum metrology. 7 pages, 6 Figures
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::898c0640e83a43791271c3922218c997 http://arxiv.org/abs/1503.02008 Zobrazit plný text záznamu