Publications associées à High-speed femtosecond UV laser writing of low-loss waveguides in fused silica

Publications associées (13)

Characterization of a Metamaterial-Enabled Waveguide Diplexer for Ka-Band Satellite Communication Systems

Romain Christophe Rémy Fleury, Robin Frédéric Bonny

This paper presents a novel miniaturized metamaterial-enabled diplexer designed for Ka-band. We introduce a measurement methodology to characterize noncontiguous channels within a waveguide structure. The diplexer efficiently separates receive (17.3-20.2 G ...

Institute of Electrical and Electronics Engineers Inc.2024

Formation Mechanism of Elemental Te Produced in Tellurite Glass Systems by Femtosecond Laser Irradiation

Yves Bellouard, Gözden Torun

The formation of elemental trigonal tellurium (t-Te) on tellurite glass surfaces exposed to femtosecond laser pulses is discussed. Specifically, the underlying elemental crystallization phenomenon is investigated by altering laser parameters in common tell ...

Wiley2023

Charge Dynamics Electron Microscopy Nanoscale Imaging of Femtosecond Plasma Dynamics

Fabrizio Carbone, Tom Theodorus Antonius Lummen, Thomas La Grange, Ivan Madan, Giovanni Maria Vanacore, Gabriele Berruto, Simone Gargiulo, Francesco Barantani, Luca Piazza

Understanding and actively controlling the spatiotemporal dynamics of nonequilibrium electron clouds is fundamental for the design of light and electron sources, high power electronic devices, and plasma-based applications. However, electron clouds evolve ...

AMER CHEMICAL SOC2023

Room-temperature electrical control of polarization and emission angle in a cavity-integrated 2D pulsed LED

Andras Kis, Dmitrii Unuchek, Fedele Tagarelli, Zhe Sun, Juan Francisco Gonzalez Marin, Cheol Yeon Cheon

Devices based on two-dimensional (2D) semiconductors hold promise for the realization of compact and versatile on-chip interconnects between electrical and optical signals. Although light emitting diodes (LEDs) are fundamental building blocks for integrate ...

Nature Research2022

Mode interference and UV-induced mode conversion in few-mode fibers

Soham Basu

Resonant and non-resonant effects in few-mode fibers have found use in versatile devices. From sensing perspective, extensive research has been done on fringe sensitivity of nonresonant two-mode interference. Resonant mode converter gratings are promising ...

EPFL2020

Near-field investigation of Bloch surface wave based 2D optical components

Hans Peter Herzig, Myun Sik Kim, Elsie Barakat, Richa Dubey, Babak Vosoughi Lahijani

We study the Bloch surface wave based nano-thin 2D optical components. The 2D elements are fabricated on the dielectric multilayer platform which sustains the Bloch surface waves. Such a platform is considered as a novel foundation for planar integrated op ...

Spie-Int Soc Optical Engineering2017

A 1.5-W frequency-doubled semiconductor disk laser tunable over 40 nm at around 745 nm

Elyahou Kapon, Alexei Sirbu, Vladimir Iakovlev

We report on a semiconductor disk laser emitting 1.5 W of output power at the wavelength of 745 nm via intracavity frequency doubling. The high power level and the >40 nm tuning range make the laser a promising tool for medical treatments that rely on phot ...

Spie-Int Soc Optical Engineering2016

Delivery of an ultrashort spatially focused pulse to the other end of a multimode fiber using digital phase conjugation

Demetri Psaltis, Christophe Moser, Salma Farahi, Edgar Emilio Morales Delgado

Multimode optical fibers potentially allow the transmission of larger amounts of information than their single mode counterparts because of their high number of supported modes. However, propagation of a light pulse through a multimode fiber suffers from s ...

Spie-Int Soc Optical Engineering2015

Development of Ultraviolet Photon Echo Experiments for the Study of Molecular Dynamics in Solution

Ahmad Ajdar Zadeh Oskouei

This thesis work concerns the development and applications of ultrafast optical techniques and in particular photon echo in the UV range (< 300 nm). Development of these techniques in the UV range is important for studying molecular dynamics in solution, s ...

EPFL2011

Impact localisation with FBG for a self-healing carbon fibre composite structure

Jan-Anders Edvin Maansson, Véronique Michaud

We demonstrated the localisation of impacts in orthotropic carbon fibre reinforced polymer (CFRP) composite materials to within a few centimetres, using a sparse array of fibre Bragg grating (FBG) sensors. This type of sensor is easily embedded in composit ...

2011

Observation of Brillouin linewidth broadening and decay time in photonic crystal fiber

Luc Thévenaz

We present a novel distributed sensing technique that allows for the observation of Brillouin gain spectral distribution and acoustic decay time in photonic crystal fiber as well as in standard single-mode fiber. ...

IEEE2010

Optical and electrical transport in the ultimate near-field of plasmonic antennas with a very small gap

Olivier Martin, Andreas Kern, Banafsheh Abasahl

2010

Effect of interface disorder on quantum well excitons and microcavity polaritons

Vincenzo Savona

The theory of the linear optical response of excitons in quantum wells and polaritons in planar semiconductor microcavities is reviewed, in the light of the existing experiments. For quantum well excitons, it is shown that disorder mainly affects the excit ...

2007