Concept

Stimulated emission

Related publications (235)

Mechanical Characterization and Shape Optimization of Fascicle-Like 3D Skeletal Muscle Tissues Contracted with Electrical and Optical Stimuli

In this study, we present a quantitative approach to construct effective 3D muscle tissues through shape optimization and load impedance matching with electrical and optical stimulation. We have constructed long, thin, fascicle-like skeletal muscle tissue ...

2014

Relative intensity noise and emission linewidth of polariton laser diodes

Raphaël Butté, Marlene Glauser

We study the relative intensity noise (RIN) per unit bandwidth in polariton laser diodes (LDs) for two pumping geometries, namely, the direct electrical and the intracavity ones as originally described in I. Iorsh et al. [Phys. Rev. B 86, 125308 (2012)], b ...

Amer Physical Soc2013

In-depth analysis of injection-seeded long external cavity InGaN/GaN surface-emitting laser

Nicolas Grandjean, Jean-François Carlin, Gatien Cosendey, Dmitri Boiko, Marlene Glauser, Xi Zeng

Optically pumped InGaN/GaN quantum well (QW) vertical-external-cavity surface-emitting laser operating at 420 nm wavelength with external cavity length of up to 50 mm has been realized. Use of injection seeding enables us to reach lasing operation even for ...

Amer Inst Physics2013

Real-time observation of the charge transfer to solvent dynamics

Majed Chergui, Andrea Cannizzo

Intermolecular electron-transfer reactions have a crucial role in biology, solution chemistry and electrochemistry. The first step of such reactions is the expulsion of the electron to the solvent, whose mechanism is determined by the structure and dynamic ...

Nature Publishing Group2013

Steric hindrance at metal centre quenches green phosphorescence of cationic iridium(III) complexes with 1-(2-pyridyl)-pyrazoles

Michael Graetzel, Mohammad Khaja Nazeeruddin, Rosario Scopelliti

Cationic cyclometalated iridium(III) complexes (N,C-2'-2-phenylpyridyl)(2)Ir((NN)-N-boolean AND) with alkyl-substituted 1-(2'-pyridyl)-pyrazole (NN)-N-boolean AND ligands exhibit green phosphorescence from a cyclometalating-ligand-centered excited s ...

Elsevier2013

Feasibility of direct mapping of cerebral fluorodeoxy-D-glucose metabolism in situ at subcellular resolution using soft X-ray fluorescence

Rolf Gruetter, Mario Gaetano Lepore, Carole Poitry-Yamate, Vincent Gajdosik

Glucose metabolism is difficult to image with cellular resolution in mammalian brain tissue, particularly with (18) fluorodeoxy-D-glucose (FDG) positron emission tomography (PET). To this end, we explored the potential of synchrotron-based low-energy X-ray ...

Wiley-Blackwell2013

Hybrid and Passive Mode-Locking of a Monolithic Two-Section MQW InGaN/GaN Laser Diode

Nicolas Grandjean, Jean-François Carlin, Jean-Michel Jacques Lamy, Luca Alex Milo Sulmoni

We report the first hybrid mode-locking of a monolithic two-section multiple quantum well InGaN based laser diode. This device, with a length of 1.5 mm, has a 50-mu m-long absorber section located at the back facet and generates a continuous stable 28.6 GH ...

Ieee-Inst Electrical Electronics Engineers Inc2013

Enhanced superradiance in epsilon-near-zero plasmonic channels

Romain Christophe Rémy Fleury

We describe the possibility of drastically boosting the spontaneous emission of a collection of two-level quantum emitters by embedding them in an epsilon-near-zero (ENZ) environment, consisting of a plasmonic waveguide operated at cutoff. This phenomenon ...

2013

Surface-Plasmon-Induced Modification on the Spontaneous Emission Spectrum via Subwavelength-Confined Anisotropic Purcell Factor

Olivier Martin, Jingwen Zhang

The mechanism of using the anisotropic Purcell factor to control the spontaneous emission linewidths in a four-level atom is theoretically demonstrated; if the polarization angle bisector of the two dipole moments lies along the axis of large/small Purcell ...

2012

Sampling and Reconstruction of Time-Varying Atmospheric Emissions

Martin Vetterli, Ivan Dokmanic, Juri Ranieri, Amina Chebira

We study the spatio-temporal sampling of physical fields representing the dispersion of a substance in the atmosphere. We consider the following setup: N sensors are deployed at ground level and measure the concentration of a particular substance, while M ...

Ieee2012

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