GaN-based photonic crystal cavities on silicon for visible and near infrared applications

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Over the past decade, quantum photonics platforms aiming at harnessing the fundamental properties of single particles, such as quantum superposition and quantum entanglement, have flourished. In this context, single-photon emitters capable of operating at ...

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For the EU DEMO conductor testing, a temperature sensor based on Fiber Bragg Grating (FBG) optical fiber is studied at the EPFL Swiss Plasma Center. The SULTAN test facility has been upgraded to use fiber optic sensor for temperature monitoring and quench ...

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Recent advancements in ultra-low-loss silicon nitride (Si3N4)-based photonic integrated circuits have surpassed fiber lasers in coherence and frequency agility. However, high manufacturing costs of DFB and precise control requirements, as required for self ...

Coupled nanolasers are of growing interest for on-chip optical computation and data transmission, which requires an understanding of how lasers interact to form complex systems. The non-Hermitian interaction between two coupled resonators, when excited sel ...

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Thin film aluminum nitride (AlN) stands out as a promising material for integrated photonics due to its wide bandgap of 6.1 eV, facilitating efficient operation across diverse spectral ranges. Its inherent electro-optic and nonlinear optical properties mak ...

This thesis presents the development, construction, and benchmark of an experimental platform that combines cold fermionic 6Li atoms with locally controllable light-matter interactions. To enable local control, a new device, the cavity-microscope, was crea ...

Electrically connected and plasmonically enhanced molecular junctions combine the optical functionalities of high field confinement and enhancement (cavity function), and of high radiative efficiency (antenna function) with the electrical functionalities o ...

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We demonstrate a figure-of-9 all-fiber thulium-doped laser (TDFL) that generates 560 fs long pulses at 1948 nm wavelength. In order to achieve self-starting passive mode-locking, we utilize an in-fiber Faraday rotator to induce a nonreciprocal phase shift. ...

GaN-based photonic crystal cavities on silicon for visible and near infrared applications

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Investigation of room-temperature single-photon emitters in GaN-based materials and GaN/AlN quantum dots

Lithium tantalate photonic integrated circuits for volume manufacturing

Generation of entangled photon pairs from a silicon bichromatic photonic crystal cavity

Low-loss and high-index contrast ultraviolet-C free-standing waveguides made of thermal silicon oxide

Towards Scalable Electronics: Synthetic 2D Materials for Large-Area 2D Circuit Integration

Shortwave Infrared-Sensitive, Narrowband Organic Upconversion Devices with a Gain

Quench Detection and Temperature Measurement With Fiber Optic Sensors

III-N blue-emitting epi-structures with high densities of dislocations: Fundamental mechanisms for efficiency improvement and applications

Piezoelectrically tunable, narrow linewidth photonic integrated extended-DBR lasers

Controlling lasing around exceptional points in coupled nanolasers

Demonstration of a sparse sensor placement technique to the limited diagnostic set in a fusion power plant

Ultraviolet to mid-infrared optical properties of sputtered Al(Sc)N-on-SiO2 thin films and experimental demonstration of AlN integrated photonic devices in the telecom C-band

A Cavity-Microscope for Quantum Simulations with Locally-Controllable All-to-All Interactions

Light Emission and Conductance Fluctuations in Electrically Driven and Plasmonically Enhanced Molecular Junctions

Emergent nonlinear dynamics in photonic lattices

Nonlinear optical diode effect in a magnetic Weyl semimetal

Room-temperature quantum optomechanics using an ultralow noise cavity

Exciton migration in two-dimensional materials

Wavelength-stabilized figure-of-9 thulium-doped all-fiber laser emitting 560 fs pulses