Publications related to Ultrashort pulse

Overview of recent gyrotron R&D towards DEMO within EUROfusion Work Package Heating and Current Drive

Jean-Philippe Hogge, Jérémy Genoud, Ioannis Pagonakis, Martin Schmid, Konstantinos Avramidis

Gyrotron R&D within the EUROfusion Work Package Heating and Current Drive (WPHCD) is addressing the challenging requirements posed on gyrotrons by the European concept for a demonstration fusion power plant (EU DEMO). These requirements, as specified withi ...

IOP PUBLISHING LTD2019

Endogenous SHG and 2PEF coherence imaging of substructures in neurons in 3D

Sylvie Roke, Carlos Alberto Macias Romero, Marie Eve Pascale Didier, Claire Jacqueline Léa Teulon

Neuronal morphology, long-distance transport and signalling critically depend on the organization of microtubules in the cytoskeleton. Second harmonic generation (SHG) imaging has been recognized as a potentially powerful tool for in situ label-free neuroi ...

2019

Towards X-ray transient grating spectroscopy

Majed Chergui, Paul Beaud, Giulia Fulvia Mancini, Jérémy Raymond Jean Maurice Rouxel, Christian David

The extension of transient grating spectroscopy to the x-ray regime will create numerous opportunities, ranging from the study of thermal transport in the ballistic regime to charge, spin, and energy transfer processes with atomic spatial and femtosecond t ...

OPTICAL SOC AMER2019

Engineered nanostructures' characterization by spectral interferometric microscopy

Toralf Scharf, Michail Symeonidis

We characterize engineered nanostructures with sizes smaller than half a wavelength using spectrally resolved interferometry. We analyze the response of the meta-atom of interest, which has a raspberry-like geometry. To identify the origin of the response, ...

SPIE-INT SOC OPTICAL ENGINEERING2019

Short spatial resolutions retrieval from a long pulse BOTDA trace

Luc Thévenaz, Zhisheng Yang, Simon Adrien Zaslawski, Sheng Wang

A novel technique is proposed to obtain a flexible and variable spatial resolution from a conventional Brillouin optical time-domain analyzers using a fast post-processing algorithm. The approach is very attractive since a fine spatial resolution can be ob ...

SPIE2019

Model-based image reconstruction method

Jean-Philippe Thiran, Dimitris Perdios, Marcel Arditi, Adrien Besson

The present invention concerns a pulse wave image reconstruction method to be used for example in ultrasound imaging. The proposed method is based on an image measurement model and its adjoint operator. The proposed method introduces matrix-free formulatio ...

2019

Ultrafast Broadband Fluorescence Up-conversion Study of the Electronic Relaxation of Metalloporphyrins

Majed Chergui, Andrea Cannizzo, Olivier Christian Bräm

We present a systematic study of the ultrafast fluorescence with broadband detection and similar to 110 fs resolution of 5,10,15,20-tetraphenylporphin (TPP) and 2,3,7,8,12,13,17,18-oc-taethylporphin (OEP), with open 3d-shell metals. We also revisit the cas ...

AMER CHEMICAL SOC2019

Microjoule-level widely tunable gain-switched thuliumdoped fiber laser

Camille Sophie Brès, Svyatoslav Kharitonov

We demonstrate the hybrid-pumped (continuous-wave+pulsed) gain-switched smallcore thulium-doped fiber laser tunable in 1825-2064nm spectral range that delivers 50-300ns pulses with energies up to 12μJ (65μJ of injected pump) reaching performance of larger- ...

OSA Publishing2019

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Ultrashort pulse

Overview of recent gyrotron R&D towards DEMO within EUROfusion Work Package Heating and Current Drive

Endogenous SHG and 2PEF coherence imaging of substructures in neurons in 3D

Ultrafast photoinduced energy and charge transfer

Towards X-ray transient grating spectroscopy

Engineered nanostructures' characterization by spectral interferometric microscopy

Short spatial resolutions retrieval from a long pulse BOTDA trace

Model-based image reconstruction method

Ultrafast Broadband Fluorescence Up-conversion Study of the Electronic Relaxation of Metalloporphyrins

Microjoule-level widely tunable gain-switched thuliumdoped fiber laser

Tunable few-optical cycle pulses and advanced ultrafast spectroscopic techniques

Graph Chatbot

Chat with Graph Search

Model-based image reconstruction method

Endogenous SHG and 2PEF coherence imaging of substructures in neurons in 3D

Short spatial resolutions retrieval from a long pulse BOTDA trace

Microjoule-level widely tunable gain-switched thuliumdoped fiber laser

Ultrafast photoinduced energy and charge transfer

Towards X-ray transient grating spectroscopy

Engineered nanostructures' characterization by spectral interferometric microscopy

Tunable few-optical cycle pulses and advanced ultrafast spectroscopic techniques

Overview of recent gyrotron R&D towards DEMO within EUROfusion Work Package Heating and Current Drive

Ultrafast Broadband Fluorescence Up-conversion Study of the Electronic Relaxation of Metalloporphyrins