Zobrazeno 1 - 10
of 1 898
pro vyhledávání: '"O'Shea, D"'
Autor:
O'Shea, D. J.
Background: Regular and sustained mindfulness practice (home practice) is considered a key component by which mindfulness-based interventions (MBIs) exert their positive effects (Parsons, Crane, Parsons, Fjorback, & Kuyken, 2017). However, participan
Externí odkaz:
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.767180
Autor:
Sayrin, C., Junge, C., Mitsch, R., Albrecht, B., O'Shea, D., Schneeweiss, P., Volz, J., Rauschenbeutel, A.
Publikováno v:
Phys. Rev. X 5, 041036 (2015)
Photons are nonchiral particles: their handedness can be both left and right. However, when light is transversely confined, it can locally exhibit a transverse spin whose orientation is fixed by the propagation direction of the photons. Confined phot
Externí odkaz:
http://arxiv.org/abs/1502.01549
We experimentally demonstrate how coherent population trapping (CPT) for donor-bound electron spins in GaAs results in autonomous feedback that prepares stabilized states for the spin polarization of nuclei around the electrons. CPT was realized by e
Externí odkaz:
http://arxiv.org/abs/1501.04524
Akademický článek
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The evanescent coupling of light between a whispering-gallery-mode bottle microresonator and a sub-wavelength-diameter coupling fiber is actively stabilized by means of a Pound-Drever-Hall technique. We demonstrate the stabilization of a critically c
Externí odkaz:
http://arxiv.org/abs/1107.5249
Publikováno v:
Proc. SPIE 7913, 79130-22 (2011)
Highly prolate-shaped whispering-gallery-mode "bottle microresonators" have recently attracted considerable attention due to their advantageous properties. We experimentally show that such resonators offer ultra-high quality factors, microscopic mode
Externí odkaz:
http://arxiv.org/abs/1105.0351
We review our recent work on tunable, ultrahigh quality factor whispering-gallery-mode bottle microresonators and highlight their applications in nonlinear optics and in quantum optics experiments. Our resonators combine ultra-high quality factors of
Externí odkaz:
http://arxiv.org/abs/1105.0330
Publikováno v:
PRL 103, 053901 (2009)
Typical microresonators exhibit a large frequency spacing between resonances and a limited tunability. This impedes their use in a large class of applications which require a resonance of the microcavity to coincide with a predetermined frequency. He
Externí odkaz:
http://arxiv.org/abs/0901.4921
We experimentally demonstrate optical bistability in Er3+-Yb3+ phosphate glass microspheres at 295 K. Bistability is associated with both Er3+ fluorescence and lasing behavior, and chromatic switching. The chromatic switching results from an intrinsi
Externí odkaz:
http://arxiv.org/abs/physics/0702139
Publikováno v:
Rev. Sci. Instrum. 77, 083105 (2006)
We describe a reproducible method of fabricating adiabatic tapers with 3-4 micron diameter. The method is based on a heat-and-pull rig, whereby a CO2 laser is continuously scanned across a length of fiber that is being pulled synchronously. Our syste
Externí odkaz:
http://arxiv.org/abs/physics/0604049