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Two device geometries that enable structural coexistence are micro-mechanical and optical resonators. In one geometry, a micro-cantilever mechanical resonator also functions as a mirror in a high-finesse optical cavity. In a second, opto-mechanical coexistence takes the form of a micron-scale silica toroid that exhibits both high-Q radio-frequency mechanical resonances and optical resonances.
We demonstrate critically coupled silicon microring resonators with intrinsic Q close to 300,000 and mode volume Vap20times(lambda/ne)3. For sub-mW optical power, large pump induced resonance shifts were observed for applications in all-optical switching.
The Q-factor of a localized plasmon cavity is enhanced significantly when allowing the plasmon to very slightly propagate as an SPP. The resulting mixed plasmon - plasmon polariton resonators retain sub-100 nm volume with enhanced Q-factors.
Splitting of mode wavelength and loss are observed in coupled photonic-crystal cavities. The characteristics of loss splitting are shown to have important impact on the optical energy transfer between such coupled resonators.
Electro-optically tunable microring resonators and waveguides were fabricated in submicrometer thin ion-sliced LiNbO3 films and epitaxially grown organic single crystalline materials. The organic crystalline waveguides show large electro-optical effects and superior photo and thermal stability as compared to polymeric materials. Electro-optical resonatorsmicroring resonators crystalline epitaxial...
We report on the fabrication and investigation of pyramidal GaAs micro-cavities on top of a Bragg mirror. A finite-difference time-domain simulation supports the experimentally found optical mode structure for such a cavity shape.
We have developed a photonic crystal nanocavity with a quality factor of 2.5times106 and a photon lifetime over 2 ns. This lifetime is the longest recorded thus far in photonic crystal cavities.
We report on high quality electrically driven quantum dot micropillar cavities with Q-factors up to 16.000. The high Q-factors allow the observation of pronounced single dot resonance effects with a Purcell enhancement of about 10.
We design photonic crystal microcavities in diamond films for applications in quantum information yielding high quality factors Q>66000 and small mode volume Vap1.1(lambda/n)3. The calculated quality factors show a strong dependence on material absorption.
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