Serwis Infona wykorzystuje pliki cookies (ciasteczka). Są to wartości tekstowe, zapamiętywane przez przeglądarkę na urządzeniu użytkownika. Nasz serwis ma dostęp do tych wartości oraz wykorzystuje je do zapamiętania danych dotyczących użytkownika, takich jak np. ustawienia (typu widok ekranu, wybór języka interfejsu), zapamiętanie zalogowania. Korzystanie z serwisu Infona oznacza zgodę na zapis informacji i ich wykorzystanie dla celów korzytania z serwisu. Więcej informacji można znaleźć w Polityce prywatności oraz Regulaminie serwisu. Zamknięcie tego okienka potwierdza zapoznanie się z informacją o plikach cookies, akceptację polityki prywatności i regulaminu oraz sposobu wykorzystywania plików cookies w serwisie. Możesz zmienić ustawienia obsługi cookies w swojej przeglądarce.
Emission of terahertz radiation may be stimulated in a bosonic system, where the final state occupation is significant. Polariton lasers represent such a system, which occupation numbers of 10000 or more for a polariton condensate are achievable at room temperature. A set of equally spaced in energy polariton condensates can be created in a parabolic lateral trap in a planar semiconductor microcavity...
We report on the formation of hexagonal polariton patterns in double semiconductor microcavities operating in the OPO regime. We experimentally and theoretically demonstrate both the formation and the optical control of these patterns.
We demonstrate soliton mode-locking in continuously pumped, non-linear optical MgF2 microresonators, resulting in low noise frequency comb spectra and ultra-short pulses of 200 fs duration with a repetition rate of 35.2 GHz.
We observed ultralow-threshold Raman lasing using direct free-space excitation of whispering gallery modes in a deformed microtoroid. This simple and robust excitation method can overcome the inadequacies of taper coupling.
We demonstrate the formation of microcavity polaritons at room temperature in a dielectric microcavity embedded with ZnO nanoparticles. Stoke shift of polariton emission is shown to be dependent on the excitonic content of the polaritons.
We demonstrate hybridization of organic and inorganic excitons via strong coupling to a common microcavity mode. The system consists of 3,4,7,8-napthalenetetracarboxylic dianhydride (NTCDA) and ZnO nanocrystals embedded in a dielectric microcavity held at room temperature.
By coating a layer of polydimethylsiloxane (PDMS) on the silica microcavity surface, we observe the Raman laser emission from PDMS, which is to our knowledge the first demonstration of polymer cavity Raman laser.
We report for the first time an alternative way to detect the mode splitting in a silica microcavity through measuring the heterodyne beat note signal of a Raman laser mode.
We discuss coherent control of parametric frequency-comb generation in microresonators. Pumping a microresonator with multiple optical frequencies enables not only robust control over the resulting comb's line spacing, but also access to low-noise comb spectra.
We present measurements of Raman scattering emission in high Q factor As2S3 microspheres. Emission is observed for input powers down to 120 μW and for resonances with Q factor below 107.
Using a wet etch process, optical resonators with quality factor as high as 875 million are demonstrated. These silicon-chip-based devices are fabricated without reflow, thereby expanding the range of integration opportunities and possible applications.
Time-resolved terahertz absorption by intra-excitonic 1s-2p transitions traces the matter part of cavity polaritons while they cool into a condensed phase. The population dynamics close to the zero-momentum state is correlated with simultaneous angle-resolved photoluminescence.
The first-order spatial correlation function of a Bose-Einstein condensate of exciton-polaritons in a semiconductor microcavity is measured. It behaves as the Berezinskii-Kosterlitz-Thouless theory predicts and decays with a power-law.
We demonstrate that coupled cavity-waveguide architectures can lead to enhanced experimentally measured detection limit of 300 fM (20pg/ml) for sensing the binding of avidin to biotin in photonic crystal micro-cavity based biosensor.
We report real time detection of individual nanoparticles down to R=20 nm using a high-Q whispering gallery mode (WGM) microresonator. The detection is based on resonance enhanced particle induced reflection and does not require monitoring resonance spectra.
We explore two degenerate high-orbital exciton-polariton condensates in a honeycomb lattice. We measure the order parameter of the condensates, identifying the vortex-antivortex lattice order. We also study the intensity correlation relation between two condensates.
We demonstrate for the first time the generation of shock waves and standing bright soliton in an exciton polariton condensate resonantly created in a semiconductor microcavity, showing few ps rise time and 20ps persistence after 100fs excitation.
We experimentally demonstrate the working principle of an all-optical transistor in semiconductor planar microcavities, based on the non-linear interactions between two polariton fluids. The operation as AND/OR gate is shown, validating the connectivity of the system.
We report experimentally the chaos-assisted excitation of high-Q whispering-gallery modes in a deformed microcavity by a sub-wavelength fiber taper. This chaos-mediated coupling combines the advantages of fiber taper and free-space coupling.
Podaj zakres dat dla filtrowania wyświetlonych wyników. Możesz podać datę początkową, końcową lub obie daty. Daty możesz wpisać ręcznie lub wybrać za pomocą kalendarza.