Publications related to Whispering-gallery wave

Single-Mode Emission in InP Microdisks on Si Using Au Antenna

An important building block for on-chip photonic applications is a scaled emitter. Whispering gallery mode cavities based on III-Vs on Si allow for small device footprints and lasing with low thresholds. However, multimodal emission and wavelength stabilit ...

AMER CHEMICAL SOC2022

Generation of Optical Frequency Combs in an Optical Microresonator Pumped by a 780-nm Laser Diode in Self-Injection Locking Regime

Andrey Voloshin

Experimental data for the generation of optical frequency combs in magnesium fluoride microcavities with whispering gallery modes at 780 nm are presented. This wavelength corresponds to the normal group velocity dispersion for pumping by a laser diode oper ...

2022

Ultra low quantum decoherence nano-optomechanical systems

Mohammadjafar Bereyhi

Thermal motion of a room-temperature mechanical resonator typically dominates the quantum backaction of its position measurement. This is a longstanding barrier for exploring cavity optomechanics at room temperature. In order to enter the quantum regime of ...

EPFL2022

Sensitivity and spectral control of network lasers

Alexis Arnaudon, Dinika Saxena

Recently, random lasing in complex networks has shown efficient lasing over more than 50 localised modes, promoted by multiple scattering over the underlying graph. If controlled, these network lasers can lead to fast-switching multifunctional light source ...

Nature Portfolio2022

Strong plasmon-exciton coupling in transition metal dichalcogenides and plasmonic nanostructures

Yang Li, Wen Chen

Achieving strong coupling between emitters and cavity photons holds an important position in the light-matter interaction due to its applications such as polariton lasing, all-optical switches, and quantum information processing. However, room-temperature ...

ROYAL SOC CHEMISTRY2021

Collective dynamics in nonlinear resonators coupled in spatial and synthetic dimensions

Tobias Kippenberg, Aleksandr Tusnin, Alexey Tikan

We theoretically investigate chaotic and stable structures in coupled-resonator chains and synthetic frequency dimension influenced by Kerr nonlinearity, thereby bringing insights in the emerging field of soliton generation in chains and lattices of high-Q ...

IEEE2021

Interaction of Confined Polaritons in Microcavity Structures

Morteza Navadeh Toupchi

A polariton is a quasiparticle formed from the coupling of a confined photon in a cavity to electronic excitation, like exciton in a semiconductor. This dissertation reports on series of experiments in confined polariton interaction by design, fabrication, ...

EPFL2021

Coherent terahertz-to-microwave link using electro-optic-modulated Turing rolls

Tobias Kippenberg, Anat Siddharth, Wenle Weng, Arslan Sajid Raja, Jijun He, Miles Henry Anderson

Arising from modulation instability, Turing rolls in optical Kerr microresonators have been used in the generation of optical frequency combs and the synthesis of microwave and terahertz frequencies. In this work, by applying electro-optic modulation on te ...

AMER PHYSICAL SOC2021

Microfabricated nanomotion detectors for rapid cells viability tests

Anton Malovichko

The widespread use of antibiotics and antifungal drugs has provoked an increasing number of multi-resistant bacteria and fungi. The emergence of multiresistance to antibiotics has been now recognized as a very serious public health issue. In order to targe ...

EPFL2021

Controlling Free Electrons with Optical Whispering-Gallery Modes

Tobias Kippenberg

We show that optical microcavities drive strong coherent modulations the in co-propagating free-electron beams, with sidebands spanning over 700eV from a sub-mu m-long interaction. The electrons probe the cavity's ringdown time and distinguish the modes sp ...

IEEE2020

Localized Photon Lasing in a Polaritonic Lattice Landscape

Daniel Oberli, Marcia Portella Oberli, Fauzia Jabeen, Morteza Navadeh Toupchi

Periodic photonic structures have attracted much interest due to their versatility for controlling light propagation. The dispersion of photon modes in photonic lattices exhibits an energy band structure analo-gous to the electronic one in crystals. An imp ...

American Physical Society (APS)2020

Short cavity InGaN-based laser diodes with cavity length below 300 mu m

Nicolas Grandjean, Jean-François Carlin, Raphaël Butté, Denis Martin, Hua Zhang, Ching-Wen Shih

We report on a practical method for developing InGaN-based edge emitting laser diodes of cavity length down to 45 mu m. Samples consisting of one uncoated cleaved facet and one etched facet coated with a high-reflectivity (HR) dielectric distributed Bragg ...

2019

High Quality Factor Confinement Of Bloch Surface Waves At Visible Wavelengths

Hans Peter Herzig, Nicolas Maxime André Descharmes, Gaël David Osowiecki, Babak Vosoughi Lahijani, Raphaël Barbey

We report the first experimental demonstration of high quality factor confinement of Bloch surface waves at visible wavelengths. The cavities consist of planar Fabry-Perot resonators that are fabricated on top of a Bloch surface supporting substrate. This ...

IEEE2018

Multiple Light Coupling and Routing via a Microspherical Resonator Integrated in a T-Shaped Optical Fiber Configuration System

Georgia Konstantinou

We demonstrate a three-port, light guiding and routing T-shaped configuration based on the combination of whispering gallery modes (WGMs) and micro-structured optical fibers (MOFs). This system includes a single mode optical fiber taper (SOFT), a slightly ...

2018

Photonic chip-based soliton frequency combs covering the biological imaging window

Tobias Kippenberg, Junqiu Liu, Maxim Karpov, Martin Hubert Peter Pfeiffer, Anton Lukashchuk

Dissipative Kerr solitons (DKS) in optical microresonators provide a highly miniaturised, chip-integrated frequency comb source with unprecedentedly high repetition rates and spectral bandwidth. To date, such frequency comb sources have been successfully a ...

Nature Publishing Group2018

Plasmonic Waveguide-Integrated Nanowire Laser

Anna Fontcuberta i Morral, Gözde Tütüncüoglu

Next-generation optoelectronic devices and photonic circuitry will have to incorporate on-chip compatible nanolaser sources. Semiconductor nanowire lasers have emerged as strong candidates for integrated systems with applications ranging from ultrasensitiv ...

American Chemical Society2017

Creating femtosecond-laser-hyperdoped silicon with a homogeneous doping profile

Tobias Schneider

Femtosecond-laser hyperdoping of sulfur in silicon typically produces a concentration gradient that results in undesirable inhomogeneous material properties. Using a mathematical model of the doping process, we design a fabrication method consisting of a s ...

Amer Inst Physics2015

Dual-mode temperature compensation technique for laser stabilization to a crystalline whispering gallery mode resonator

Tobias Kippenberg, Albert Schliesser

Frequency stabilization of a diode laser locked to a whispering gallery mode (WGM) reference resonator made of a MgF2 single crystal is demonstrated. The strong thermal dependence of the difference frequency between two orthogonally polarized TE an TM mode ...

Optical Society of America2012

Thermal-noise-limited crystalline whispering-gallery-mode resonator for laser stabilization

Tobias Kippenberg, Albert Schliesser

We have stabilized an external cavity diode laser to a whispering gallery mode resonator formed by a protrusion of a single-crystal magnesium fluoride cylinder. The cylinder's compact dimensions (less than or similar to 1 cm(3)) reduce the sensitivity to v ...

2011

Polariton lasing in a hybrid bulk ZnO microcavity

Nicolas Grandjean, Raphaël Butté, Jacques Levrat, Georg Rossbach

We demonstrate polariton lasing in a bulk ZnO planar microcavity under non-resonant optical pumping at a small negative detuning (delta similar to -1/6 the 130 meV vacuum Rabi splitting) and a temperature of 120 K. The strong coupling regime is maintained ...

AIP American Institute of Physics2011