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A comprehensive theory of couplings between a cavity and different charge configurations in a quantum dot is developed. It is shown that the quantum anti-Zeno effect is essential for the results obtained by QED experiments. The quantum dynamics of the system employing the quantum master equation is analysed. A Stansky-Krastanov InAs QD grown on a GaAs substrate was assumed, and the only first confined...
We report our design and fabrication of superconducting nanowire single-photon detectors integrated with gold plasmonic nanostructures, which can enhance the absorption of TM-polarized light, and can enlarge the effective area without sacrificing detector speed.
Experiments and simulation demonstrate an instability of the intracavity pumped optical parametric oscillator against bidirectional operation. It is shown that nonlinear losses inside the signal cavity can stabilize the bidirectional operation.
The heat dissipation time in an InP-based photonic crystal nano-cavity was measured. Our method is based on time-resolved reflectivity of a cw beam coupled through a tapered fiber. Dissipation times around 2 mus were obtained.
We study theoretically and experimentally the strongly-coupled, nonlinear regime of a hot vapor of three-level atoms in an optical cavity. Interesting effects include lasing without inversion and polariton peak splittings.
We design and numerically simulate a photonic crystal waveguide cavity with a nanoslot structure for single nanoparticle trapping. A 135times enhancement of optical gradient trapping force compared to plain waveguide trapping devices has been achieved.
We demonstrate robust and efficient routing of single photons using a microtoroidal cavity QED system. Single photons from a coherent input are sorted to one output of the fiber with excess photons redirected to the other.
We present the first observation of cryogenic operation in an all-solid-state refrigerator. A temperature drop of ~150 K is demonstrated in a 0.2 cm3 rare-earth doped fluoride crystal (Yb:YLF) using anti-Stokes fluorescence, at a record cooling power of 110 mW. Lowest electronic transition within Yb3+ Stark manifold along with cavity enhanced absorption and thermal-load management were key in achieving...
Theoretical and experimental results are presented for the potential to eliminate group delay dispersion of resonant SESAMs over broad spectral bandwidths through the design of a single dielectric cap layer of carefully selected refractive index.
Using tunnel junction patterning and double wafer fusion, we demonstrate phase-locked arrays of VCSELs emitting at the 1300 nm waveband. CW powers as high as 10 mW and coherent beams are demonstrated for various array configurations.
Si-nc light emission, overcoming limitations of c-Si, is described by a rate equation formalism within the ADE-FDTD scheme. Following this scheme, we design a series of resonant devices which tune and enhance the Si-nc luminescence.
We report on cavity quantum electrodynamics effects in high-Q electrically contacted quantum dot-micropillar cavities. The structures show weak coupling and strong coupling via electrooptical tuning as well as single photon emission and low threshold lasing.
We have fabricated an intrinsic fiber Mach-Zehnder interferometer (MZI) by imbedding a micro air-cavity using femtosecond laser and optimal arc-splicing. Spectral analysis confirmed the MZI with experimental results. Temperature dependence was also measured.
Sublinear intensity dependence of photoluminescence from organic exciton-polariton microcavities under non-resonant excitation in two power regimes is shown. The sublinearity is attributed to exciton-exciton annihilation, which could compete with polariton-polariton scattering in these devices.
Intersubband cavity polaritons in a quantum well waveguide structure are photogenerated by 12-fs near-infrared pulses. Multi-THz transients trace the non-adiabatic switch-on of ultrastrong light-matter coupling and the conversion of bare photons into cavity polaritons.
We present the theory and experimental realization of simultaneously localized and strongly coupled optical and mechanical modes in periodic nanostructures. The mechanical properties of localized phonons with Gigahertz frequencies and sub-picogram masses are studied via all-optical measurements.
The conditional dynamics of 85Rb atoms in a driven two-mode optical cavity shows quantum beats from ground state Larmor precession. We study the manipulation and control of their fringe visibility.
A composite cavity QED system, which couples nitrogen vacancy centers in a diamond nanopillar to whispering gallery modes in a silica microsphere and overcomes limitations of earlier diamond nanocrystal based systems, is demonstrated.
Optical microcavites fabricated by etching whispering gallery mode and photonic crystal structures in a high-index gallium phosphide layer and an underlying single-crystal diamond substrate are studied experimentally and theoretically.
A new cavity-optomechanical system has been developed comprised of two doubly-clamped silicon nitride cantilevers with a 1D photonic crystal etched into them. We will discuss the optical properties of the system and potential applications to solid-state cavity QED with diamond color centers.
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