Concept

Whispering-gallery wave

Publications associées (30)

Cavity optomechanics with ultrahigh-Q crystalline microresonators

We present the observation of optomechanical coupling in crystalline whispering-gallery-mode (WGM) resonators. The high purity of the material enables optical quality factors in excess of 10(10) and finesse exceeding 10(6), as well as mechanical quality fa ...

2010

Photonic-crystal microcavity laser with site-controlled quantum-wire active medium

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

Site-controlled quantum-wire photonic-crystal microcavity laser is experimentally demonstrated using optical pumping. The single-mode lasing and threshold are established based on the transient laser response, linewidth narrowing, and the details of the no ...

2009

A multi-color fast-switching microfluidic droplet dye laser

Demetri Psaltis

We describe a multi-color microfluidic dye laser operating in whispering gallery mode based on a train of alternating droplets containing solutions of different dyes; this laser is capable of switching the wavelength of its emission between 580 nm and 680 ...

2009

Light control and microcavity lasers based on quantum wires integrated in photonic-crystal cavities

Kirill Atlasov

Novel light-emitting devices and micro-optical-circuit elements will rely upon understanding and control of light-matter interaction at the nanoscale. Recent advances in nanofabrication and micro-processing make it possible to develop integrable solid-stat ...

EPFL2009

Nonlinear relaxation of zero-dimension-trapped microcavity polaritons

Benoît Marie Joseph Deveaud, François Morier-Genoud, Jean-Philippe Brantut, Gaël Nardin, Ounsi El Daïf, Taofiq Paraïso

We study the emission properties of confined polariton states in shallow zero-dimensional traps under nonresonant excitation. We evidence several relaxation regimes. For slightly negative photon-exciton detuning, we observe a nonlinear increase of the emis ...

AIP American Institute of Physics2008

High-sensitivity monitoring of micromechanical vibration using optical whispering gallery mode resonators

Tobias Kippenberg, Albert Schliesser

The inherent coupling of optical and mechanical modes in high finesse optical microresonators provides a natural, highly sensitive transduction mechanism for micromechanical vibration. Using homodyne and polarization spectroscopy techniques, we achieve sho ...

2008

High quality nitride based microdisks obtained via selective wet etching of AlInN sacrificial layers

Nicolas Grandjean, Jean-François Carlin, Eric Feltin, Raphaël Butté, Antonino Francesco Castiglia, Alexei Altoukhov

The authors report a technique for selective wet chemical etching of an AlInN sacrificial layer lattice-matched to GaN for the fabrication of air-gap photonic structures. It is used to demonstrate high quality factor (Q) microdisk cavities. Whispering gall ...

2008

Blue lasing at room temperature in high quality factor GaN/AlInN microdisks with InGaN quantum wells

Nicolas Grandjean, Jean-François Carlin, Eric Feltin, Raphaël Butté, Antonino Francesco Castiglia

The authors report on the achievement of optically pumped III-V nitride blue microdisk lasers operating at room temperature. Controlled wet chemical etching of an AlInN interlayer lattice matched to GaN allows forming inverted cone pedestals. Whispering ga ...

2007

Optical mode control in VCSEL-based photonic crystal heterostructures

Lars Lundeberg

The field of photonic crystals is a rapidly developing branch of modern optics. Photonic crystals are believed to be the cornerstone for a wide range of new photonic devices controlling the confinement and propagation of light. These artificial structures ...

EPFL2007

Advanced trends in nonlinear optics applied to distributed optical-fibre sensors

Dario Alasia

The distributed optical-fibre sensors based on the properties of Brillouin scattering is the central object of this thesis. In the past decade, optical fibres have gained a large interest as sensors: attractive solutions based on the non-linear stimulated ...

EPFL2006