Publications associées à Thermo-optically tunable spectral broadening in a nonlinear ultra-silicon-rich nitride Bragg grating

Publications associées (18)

Nanophotonic-enabled extra- and intra-cavity manipulation of ultrafast optical pulse trains

Light-matter-interaction is an intriguing research hotspot that covers the linear and nonlinear control of electromagnetic waves in various optical media. Since it is an immensely broad topic, our work focuses on the extra- and intra-cavity manipulation of ...

EPFL2025

Electronic structure of Bi2 Ir2 O7 probed by resonant inelastic x-ray scattering at the oxygen K edge: Metallicity, hybridization, and electronic correlations

Henrik Moodysson Rønnow

The electronic structure of metallic Bi2Ir2O7 has been investigated by a combination of soft x-ray absorption spectroscopy, x-ray emission spectroscopy (XES), and resonant inelastic x-ray scattering (RIXS) in the vicinity of the oxygen K edge. The O K-edge ...

2025

Efficient Low‐Voltage Phase Shifter with Inkjet‐Printed Liquid Crystal on a Silicon on Insulator Platform

Niels Quack, Alain Yuji Takabayashi

A new electro‐optic phase shifter device architecture consisting of two lateral rail electrodes in doped silicon close to a waveguide with a liquid crystal cladding is demonstrated. Starting with a completed silicon photonics wafer of IMEC's iSiPP50G platf ...

Wiley2025

High kinetic inductance cavity arrays for compact band engineering and topology-based disorder meters

Vera Jo Weibel, Davide Sbroggiò, Pasquale Scarlino, Simone Frasca, Marco Scigliuzzo, Fabian Oppliger, Franco De Palma, Guillaume Beaulieu, Vincent Jean Yves Jouanny, Léo Paul Peyruchat

Superconducting microwave metamaterials offer enormous potential for quantum optics and information science, enabling the development of advanced quantum technologies for sensing and amplification. In the context of circuit quantum electrodynamics, such me ...

2025

An optical/electronic artificial skin extends the robotic sense to molecular sensing

Josephine Anna Eleanor Hughes, Benhui Dai

Artificial skins are essential for bridging sensory gaps between robots and environments, enabling natural and intuitive interactions. While artificial skins can sense stimuli like pressure and stretchability, their capabilities need to be expanded into ch ...

2025

Advancements and Prospects of Near-infrared-light Driven Co2 Reduction Reaction

Jiaqi Xu

In the realm of photoconversion of CO2 into high-value chemicals, the importance of near-infrared (NIR) light is gradually gaining recognition. Relative to ultraviolet (UV) and visible light, NIR light (700-2500 nm), accounting for ca. 50% of solar energy, ...

Royal Society of Chemistry2025

Symmetry breaking of the χ(2) polarization in poled thin film lithium niobate waveguides enabling phase matching

Camille Sophie Brès

Poling the bottom of etched LNOI waveguides enables modal phase matching with an antisymmetric mode and a measured second harmonic generation efficiency of 1980 %W-1cm-2. The simple design allows for reproducible on-chip frequency conversion. ...

Institute of Electrical and Electronics Engineers Inc.2024

Probing the Formation of Nonlinear Optical States with Free Electrons

Tobias Kippenberg, Rui Ning Wang, Arslan Sajid Raja, Guanhao Huang, Zheru Qiu, Alexey Tikan, Aleksandr Tusnin, Yujia Yang

Combining nonlinear integrated photonics with electron microscopy, we probe the formation of optical dissipative structures in Si3N4 microresonators with free electrons and find unique spectral fingerprints in the electron spectrum that enable new electron ...

Institute of Electrical and Electronics Engineers Inc.2024

Alternative Plasmonic Materials for Fluorescence Enhancement

Olivier Martin, Stavros Athanasiou

Noble metals such as gold and silver have been used extensively for a range of plasmonic applications, including enhancing the fluorescence rate of a dye molecule, as evidenced by numerous experiments over the past two decades. Recently, a variety of doped ...

2024

Photostrictive Actuators Based on Freestanding Ferroelectric Membranes

Luis Guillermo Villanueva Torrijo, Daniel Moreno Garcia

Complex oxides offer a wide range of functional properties, and recent advances in the fabrication of freestanding membranes of these oxides are adding new mechanical degrees of freedom to this already rich functional ecosystem. Here, photoactuation is dem ...

Wiley-V C H Verlag Gmbh2024

Toward Self-Adjusting k-Ary Search Tree Networks

Anton Paramonov

Datacenter networks are becoming increasingly flexible with the incorporation of new optical communication technologies, such as optical circuit switches, enabling self-adjusting topologies that can adapt to the traffic pattern in a demand-aware manner. In ...

Institute of Electrical and Electronics Engineers Inc.2024

Supercontinuum in integrated photonics: generation, applications, challenges, and perspectives

Camille Sophie Brès

Frequency conversion in nonlinear materials is an extremely useful solution to the generation of new optical frequencies. Often, it is the only viable solution to realize light sources highly relevant for applications in science and industry. In particular ...

2023

Single SiGe quantum dot emission deterministically enhanced in a high-Q photonic crystal resonator

Marco Clementi

We report the resonantly enhanced radiative emission from a single SiGe quantum dot (QD), which is deterministically embedded into a bichromatic photonic crystal resonator (PhCR) at the position of its largest modal electric field by a scalable method. By ...

Optica Publishing Group2023

Optical and thermal characterization of a group-III nitride semiconductor membrane by microphotoluminescence spectroscopy and Raman thermometry

Nicolas Grandjean, Jean-François Carlin, Raphaël Butté, Ian Michael Rousseau

We present the simultaneous optical and thermal analysis of a freestanding photonic semiconductor membrane made from wurtzite III-nitride material. By linking microphotoluminescence spectroscopy with Raman thermometry and other spectroscopic techniques, we ...

Amer Physical Soc2023

III-N Optoelectronic Devices: Understanding the Physics of Electro-Optical Degradation

Nicolas Grandjean, Jean-François Carlin, Camille Haller

III-N optoelectronic devices are of great interest for many applications. Visible emitters (based on InGaN) are widely used in the lighting, display and automotive fields. Ultraviolet LEDs (based on AlGaN) are expected to be widely used for disinfection, m ...

SPIE2023

Self-Injection-Locked Kerr Soliton Microcombs With Photonic Wire Bonds For Use in Terahertz Communications

Tobias Kippenberg, Andrey Voloshin

We demonstrate single-soliton Kerr-comb generators, exploiting photonic wire bonds to connect Si3N4 resonators and self-injection-locked InP pump lasers. The assembly is used to generate a 0.302 THz carrier for 160 Gbit/s wireless transmission over 55 m. ...

Optical Society of America2023

Image shift correction, noise analysis, and model fitting of (cathodo-)luminescence hyperspectral maps

Anna Fontcuberta i Morral, Nicolas Tappy

Hyperspectral imaging is an important asset of modern spectroscopy. It allows us to perform optical metrology at a high spatial resolution, for example in cathodoluminescence in scanning electron microscopy. However, hyperspectral datasets present added ch ...

2022

A Bistable Silicon Photonic Mems Phase Switch For Nonvolatile Photonic Circuits

Niels Quack, Alain Yuji Takabayashi

Silicon photonic circuits are rapidly growing in complexity and spreading to new applications. However, programmable circuits consume much power and require active electrical interfaces. For the first time, we demonstrate a nonvolatile photonic MEMS pi-pha ...

IEEE2022