Concept

Maser

Related publications (66)

Frequency combs and platicons in optical microresonators with normal GVD

We predict the existence of a novel type of the flat-top dissipative solitonic pulses, "platicons", in microresonators with normal group velocity dispersion (GVD). We propose methods to generate these platicons from cw pump. Their duration may be altered s ...

Optical Soc Amer2015

Perspectives of Active Atomic Clock Based on Modelocked Semiconductor Laser with Rubidium Vapor Cell Saturable Absorber

Xi Zeng

Atomic clocks are a vital technology in the day to day operation of modern society. While passive Rb and Cs microwave atomic clocks find widespread practical applications today, active atomic clocks have the potential to surpass them in frequency stability ...

EPFL2015

Counting the cycles of light using a self-referenced optical microresonator

Tobias Kippenberg, Victor Brasch, Martin Hubert Peter Pfeiffer, Tobias Herr, John David Jost, Caroline Marie Anne Lecaplain

Phase coherently linking optical-to-radio frequencies with femtosecond mode-locked laser frequency combs has enabled counting the cycles of light and is the basis of optical clocks, absolute frequency synthesis, tests of fundamental physics, and improved s ...

Optical Soc Amer2015

Molecular Optomechanics with Plasmons: Backaction at the nanoscale

Tobias Kippenberg, Christophe Marcel Georges Galland, Nicolas Piro Mastracchio

The plasmonic systems used in surface-enhanced Raman scattering are shown to be quivalent to optomechanical cavities. The new backaction force of the plasmon on the molecular vibration could lead to coherent amplification of vibrational motion. ...

OSA2015

Construction of a 4 GHz resonant cavity operating in TE011 mode: Simulation and Experiments

Tarek Axel Vennemann

During this project we studied cavities as an alternative method to stripline resonators, to create an oscillating magnetic field. We were able to simulate different cavity designs and reproduce theoretical results as a numerical simulation and experimenta ...

2015

Low-temperature solution-processed wavelength-tunable perovskites for lasing

Nripan Mathews

Low-temperature solution-processed materials that show optical gain and can be embedded into a wide range of cavity resonators are attractive for the realization of on-chip coherent light sources. Organic semiconductors and colloidal quantum dots are consi ...

Nature Publishing Group2014

Slowing, advancing and switching of microwave signals using circuit nanoelectromechanics

Tobias Kippenberg, Xiaoqing Zhou, Albert Schliesser

The parametric coupling of electromagnetic and mechanical degrees of freedom gives rise to a host of optomechanical phenomena. Examples include quantum-limited displacement measurements, sideband cooling or amplification of mechanical motion. Likewise, thi ...

Nature Publishing Group2013

The physics behind free electron lasers (FELs) based on magnetostatic and optical undulators

Giorgio Margaritondo, Primoz Rebernik Ribic

By explicitly writing the equations of motion for highly relativistic electrons in an electromagnetic field we show the equivalence between the magnetostatic and optical (laser) undulator-based free electron lasers (FELs). In order to gain insight into the ...

2012

Observation of Stimulated Emission and Lasing in Quantum-wire Photonic-crystal Nanocavities

Elyahou Kapon, Alok Rudra, Benjamin Dwir, Pascal Gallo, Kirill Atlasov

Low-threshold lasing is experimentally achieved for the first time in semiconductor photonic-crystal nanocavities embedding site-controlled quantum wires. The effect is established via direct observation of the stimulated emission in the time domain. ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2009

Photocurrent and photoconductance properties of a GaAs nanowire

Anna Fontcuberta i Morral

We report on photocurrent and photoconductance processes in a freely suspended p-doped single GaAs nanowire. The nanowires are grown by molecular beam epitaxy, and they are electrically contacted by a focused ion beam deposition technique. The observed pho ...

American Institute of Physics2009

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