Zobrazeno 1 - 10
of 221
pro vyhledávání: '"A Louchet-Chauvet"'
Publikováno v:
Applied Optics, vol. 63, issue 19, pp.5192-5202 (2024)
Achieving accurate arbitrary frequency excursions with a laser can be quite a technical challenge, especially when steep slopes (GHz/$\mu$s) are required, due to both deterministic and stochastic frequency fluctuations. In this work we present a mult
Externí odkaz:
http://arxiv.org/abs/2403.14365
Publikováno v:
Journal of Physics: Condensed Matter 35, 305501 (2023)
It was recently shown that the optical excitation of rare-earth ions produces a local change of the host matrix shape, attributed to a change of the rare-earth ion's electronic orbital geometry. In this work we investigate the consequences of this pi
Externí odkaz:
http://arxiv.org/abs/2301.05531
Publikováno v:
AVS Quantum Sci. 4, 024401 (2022)
Cryogenics is a pivotal aspect in the development of quantum technologies. Closed-cycle devices have recently emerged as an environmentally friendly and low-maintenance alternative to liquid helium cryostats. Yet the larger level of vibrations in dry
Externí odkaz:
http://arxiv.org/abs/2112.03713
Publikováno v:
Phys. Rev. Applied 20, 054004 (2023)
We investigate a system composed of an ensemble of room temperature rare-earth ions embedded in a bulk crystal, intrinsically coupled to internal strain via their sensitivity to the surrounding crystal field. We evidence the generation of a mechanica
Externí odkaz:
http://arxiv.org/abs/2109.06577
Publikováno v:
New Journal of Physics, Vol 17, Iss 2, p 023031 (2015)
We study the bandwidth and multiplexing capacity of an erbium-doped optical memory for quantum storage purposes. We concentrate on the protocol revival of a silenced echo because it has the largest potential multiplexing capacity. Our analysis is app
Externí odkaz:
https://doaj.org/article/5522ecb61c1c41c29197e9f0f10a720e
Publikováno v:
New Journal of Physics, Vol 15, Iss 6, p 063037 (2013)
Based on the similarity of paraxial diffraction and dispersion mathematical descriptions, the temporal imaging of optical pulses combines linear dispersive filters and quadratic phase modulations operating as time lenses. We consider programming a di
Externí odkaz:
https://doaj.org/article/219449f5503e4dceb16687000550fa60
Publikováno v:
Phys. Rev. B 99, 115102 (2019)
With their optical wavelength in the near infrared (790-800nm) and their unique spectroscopic properties at cryogenic temperatures, thulium-doped crystals are at the center of many architectures linked to classical signal processing and quantum infor
Externí odkaz:
http://arxiv.org/abs/1812.10369
Publikováno v:
Phys. Rev. B 100, 165107 (2019)
We investigate the erbium flip-flop dynamics as a limiting factor of the electron spin lifetime and more generally as an indirect source of decoherence in rare-earth doped insulators. Despite the random isotropic arrangement of dopants in the host cr
Externí odkaz:
http://arxiv.org/abs/1811.10285
Publikováno v:
Review of Scientific Instruments 90.3 (2019): 034901
Vibrations in cryocoolers are a recurrent concern to the end user. They appear in different parts of the acoustic spectrum depending on the refrigerator type, Gifford McMahon or pulse-tube, and with a variable coupling strength to the physical system
Externí odkaz:
http://arxiv.org/abs/1811.04018
Autor:
Venet, Caroline, Bocoum, Maïmouna, Laudereau, Jean-Baptiste, Chanelière, Thierry, Ramaz, François, Louchet-Chauvet, Anne
Publikováno v:
Optics Letters Vol. 43, Issue 16, pp. 3993-3996 (2018)
Ultrasound modulated optical tomography (UOT) is a powerful imaging technique to discriminate healthy from unhealthy biological tissues based on their optical signature. Among the numerous detection techniques developed for acousto-optic imaging, onl
Externí odkaz:
http://arxiv.org/abs/1808.09205