Supplementary Materials for “ PT - Symmetric Phonon Laser ”

PT-symmetric phonon laser.

By exploiting recent developments associated with coupled microcavities, we introduce the concept of the PT-symmetric phonon laser with balanced gain and loss. This is accomplished by introducing gain to one of the microcavities such that it balances the passive loss of the other. In the vicinity of the gain-loss balance, a strong nonlinear relation emerges between the intracavity-photon intens...

Mechanisms and applications of cyclometalated Pt(ii) complexes in photoredox catalytic trifluoromethylation† †Electronic supplementary information (ESI) available: Experimental details and the syntheses of the Pt(ii) catalysts; Fig. S1–S55, showing the phosphorescence spectra, femto- and nanosecond laser flash photolysis results, cyclic and differential pulse voltammograms, phosphorescence quenching experiment results, photoinduced ESR spectrum, spectroelectrochemical UV-vis-NIR absorption spectrum, dark-state reaction results, and 1H, 13C, and 19F NMR spectra; Scheme S1, presenting the synthetic routes to the Pt(ii) complexes; Tables S1–S6, listing optimization results for the trifluoromethylation of 1-dodecene, 3-methylindole and N-methylpyrrole, and the Cartesian coordinates for the optimized geometries of one-electron oxidized species of the Pt complexes. See DOI: 10.1039/c4sc02537g Click here for additional data file.

Department of Advanced Materials Engin Kyung Hee University, Yongin, Gyeonggi-do 4 Department of Applied Chemistry & Depa University, Ansan, Gyeonggi-do 426-791, Ko Department of Material and Life Science, University, ALCA, Japan Science and Tech 0871, Japan. E-mail: [email protected] † Electronic supplementary information ( the syntheses of the Pt(II) catalysts; Fig. spectra, femtoand nanose...

Temperature Effect on THz Quantum Cascade Lasers

A simple semi-phenomenological model, which accurately predicts the dependence of thresholdcurrent for temperature of Resonant-phonon three well quantum cascade laser based on verticaltransitions is offered. We found that, the longitude optical phonon scattering of thermally excitedelectrons is the most important limiting factor for thermal performance of high frequency THz QCLs.In low frequenc...

Electron-phonon coupling and electron heat capacity of metals under conditions of strong electron-phonon nonequilibrium

The dependence of the strength of the electron-phonon coupling and the electron heat capacity on the electron temperature is investigated for eight representative metals, Al, Cu, Ag, Au, Ni, Pt, W, and Ti, for the conditions of strong electron-phonon nonequilibrium. These conditions are characteristic of metal targets subjected to energetic ion bombardment or short-pulse laser irradiation. Comp...

Phonon hydrodynamics in two-dimensional materials Supplementary Information