Journal ArticleDOI
Induced transparency and absorption in coupled whispering-gallery microresonators
TLDR
In this paper, coupled fused-silica microspheres were used to investigate the effect of interference between coresonant whisperinggallery modes of the two spheres and the observed effects can enhance microresonator performance in various applications.Abstract:
Optical behavior analogous to electromagnetically induced transparency and absorption is observed in experiments using coupled fused-silica microspheres. This behavior results from interference between coresonant whispering-gallery modes of the two spheres. Coupled-resonator-induced transparency and absorption are observed. Which effect is seen depends on the strength of coupling of incident light from a tapered fiber into the first sphere and on the strength of coupling between the two spheres. The observed effects can enhance microresonator performance in various applications.read more
Citations
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Journal ArticleDOI
Fano resonances in nanoscale structures
TL;DR: In this paper, the authors introduce the concept of Fano resonances, which can be reduced to the interaction of a discrete (localized) state with a continuum of propagation modes, and explain their geometrical and/or dynamical origin.
Journal ArticleDOI
Quantum-optical analogies using photonic structures
TL;DR: In this article, a review of recent theoretical and experimental advances in the field of quantum-optical analogies is presented, including some relevant optical analogies based on the use of curved photonic structures, including: coherent destruction of tunneling in driven bistable potentials, coherent population transfer and adiabatic passage in laser-driven multilevel atomic systems; quantum decay control and Zeno dynamics; electronic Bloch oscillations and Zener tunneling, Anderson localization and dynamic localization in crystalline potentials.
Journal ArticleDOI
Experimental realization of an on-chip all-optical analogue to electromagnetically induced transparency
TL;DR: In this article, the authors provided the first experimental observation of structure tuning of the electromagnetically induced transparency-like spectrum in integrated on-chip optical resonator systems and measured a transparency-resonance mode with a quality factor of 11 800.
Journal ArticleDOI
Slow Light in Coupled-Resonator-Induced Transparency
TL;DR: In this article, the authors performed optical pulse propagation experiments in a system in which two ultrahigh-Q silica microspheres of different diameters were coupled in tandem to a fiber taper to yield coupled-resonator-induced transparency.
Journal ArticleDOI
What is and what is not electromagnetically induced transparency in whispering-gallery microcavities
TL;DR: The pathways leading to electromagnetically induced transparency, Fano resonances and Autler-Townes splitting in coupled whispering-gallery-mode resonators are demonstrated and the application of the Akaike Information Criterion is reported, discerning between all-optical analogues of electromagnetic transparency and Autlers splitting and clarifying the transition between them.
References
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Journal ArticleDOI
Observation of electromagnetically induced transparency.
TL;DR: In this paper, the authors report the first demonstration of a technique by which an optically thick medium may be rendered transparent by applying a temporally smooth coupling laser between a bound state of an atom and the upper state of the transition which is to be made transparent.
Proceedings Article
Observation of electromagnetically induced transparency
TL;DR: The first demonstration of a technique by which an optically thick medium may be rendered transparent is reported, which results from a destructive interference of two dressed states created by applying a temporally smooth coupling laser between a bound state of an atom and the upper state of the transition which is to be made transparent.
Journal ArticleDOI
Ultralow-threshold Raman laser using a spherical dielectric microcavity
TL;DR: This work demonstrates a micrometre-scale, nonlinear Raman source that has a highly efficient pump–signal conversion (higher than 35%) and pump thresholds nearly 1,000 times lower than shown before, which represents a route to compact, ultralow-threshold sources for numerous wavelength bands that are usually difficult to access.
Journal ArticleDOI
Quality-factor and nonlinear properties of optical Whispering-Gallery modes
TL;DR: In this article, the properties of optical resonators with quality-factor Q⩾108, effective volume of e.m. field localization Veff ≥ 10−9 cm3 and threshold power of optical bistability Wbist≈10−5 W are described.
Journal ArticleDOI
Shift of whispering-gallery modes in microspheres by protein adsorption
TL;DR: The theoretical shift for adsorption of a single protein is found to be extremely sensitive to the target region, with adsor adaptation in the most sensitive region varying as 1/R(5/2).