Results 11 to 20 of about 29,891 (219)

Ultralow-noise photonic microwave synthesis using a soliton microcomb-based transfer oscillator

open access: yesNature Communications, 2020
In order to satisfy a wide range of modern microwave applications, improved methods are needed to produce low-noise microwave signals. Here the authors demonstrate ultra-low noise microwave synthesis via optical frequency division using a transfer ...
Erwan Lucas   +5 more
doaj   +1 more source

Carrier-Envelope Offset Stabilized Ultrafast Diode-Pumped Solid-State Lasers

open access: yesApplied Sciences, 2015
Optical frequency combs have been revolutionizing many research areas and are finding a growing number of real-world applications. While initially dominated by Ti:Sapphire and fiber lasers, optical frequency combs from modelocked diode-pumped solid-state
Stéphane Schilt, Thomas Südmeyer
doaj   +1 more source

Le temps comme singulier collectif

open access: yesÉtudes Ricoeuriennes / Ricoeur Studies, 2021
Time as a collective singular cannot be fully captured by Ricoeur’s poetic response to the aporias of time. Ricoeur works on this question in particular from Kant, Husserl and Heidegger, and, at the end of Time and Narrative, returns to the question of ...
Jean-Paul Nicolaï
doaj   +1 more source

Carrier-Envelope Offset Frequency Stabilization of a Fiber Laser by Cross Gain Modulation

open access: yesIEEE Photonics Journal, 2018
We present the first carrier-envelope offset (CEO) frequency stabilization of a fiber laser by cross gain modulation. The Yb-doped fiber laser is mode-locked by nonlinear polarization evolution and emits 32-nm wide dissipative solitons at a repetition ...
Kutan Gurel   +2 more
doaj   +1 more source

Epitaxial LiNbO3 growth and layer transfer for thin-film electro-optic modulator realization [PDF]

open access: yesEPJ Web of Conferences
The aim of the PhD project is to develop a new trend in modulation system for Exail company: thin film (
Larger Grégoire   +5 more
doaj   +1 more source

Le cadre spatio-temporel dans "À quoi rêvent les loups" de: Yasmina Khadra [PDF]

open access: yesMağallaẗ Kulliyyaẗ Al-Adāb Bi-Qinā, 2020
       Yasmina Khadra, comme il était un des écrivains de la littérature d’urgence, a centralisé son roman sur les événements de la violence faits par la mouvance terroriste en Algérie à la fin du XXe siècle.
مصطفى جابر أحمد آدم
doaj   +1 more source

Frequency Noise Characterization of a 25-GHz Diode-Pumped Mode-Locked Laser With Indirect Carrier-Envelope Offset Noise Assessment

open access: yesIEEE Photonics Journal, 2018
We present a detailed frequency noise characterization of an ultrafast diode-pumped solid-state laser operating at 25-GHz repetition rate. The laser is based on the gain material Er:Yb:glass and operates at a wavelength of 1.55 μm.
Pierre Brochard   +6 more
doaj   +1 more source

High-power, high-efficiency continuous-wave Tm:KYW laser with multimode in-band diode pumping

open access: yesJournal of the European Optical Society-Rapid Publications
We report a high-power, high-efficiency continuous-wave Tm:KY(WO4)2 (Tm:KYW) laser based on multimode in-band diode pumping at 1720 nm. In-band pumping reduces the quantum defect compared to conventional 800-nm pumping, enabling efficient high-power ...
Trawi Firas   +5 more
doaj   +1 more source

Guidelines for Pediatric Radiotherapy Simulation: A Report From the Children's Oncology Group Radiation Oncology Discipline

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric radiation therapy presents unique challenges compared to adult treatments, including those of immobilization, potential need for sedation, and the critical importance of accurate, reproducible positioning. Additionally, heightened attention to imaging doses is necessary to minimize long‐term toxicity in survivors.
Parham Alaei   +17 more
wiley   +1 more source

Efficient XUV out-coupling mechanisms for intra-oscillator HHG [PDF]

open access: yesEPJ Web of Conferences, 2022
Drs J.   +5 more
doaj   +1 more source

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