Publication
Time-resolved lasing action from single and coupled photonic crystal nanocavity array lasers emitting in the telecom band
Publications associées (117)
Accurate time zero determination in an ultrafast transmission electron microscope without energy filter
Marcel Drabbels, Ulrich Lorenz, Pavel Olshin, Jonathan Mark Voss
In this manuscript, we describe a simple and accurate method for finding the temporal overlap of the laser pump and electron probe pulse in ultrafast TEM. Our approach is based on the observation that the outline of a nanoparticle blurs at time zero, a phe ...
2022Wavelength-stabilized tunable mode-locked thulium-doped fiber laser beyond 2 mu m
Camille Sophie Brès, Moritz Bartnick, Gayathri Bharathan
We report the development of a widely tunable mode-locked thulium-doped fiber laser based on a robust chirped fiber Bragg grating (CFBG). By applying mechanical tension and compression to the CFBG, an overall tunability of 20.1 nm, spanning from 2022.1 nm ...
Optica Publishing Group2022Ultrashort Pulse Excited Tip-Enhanced Raman Spectroscopy in Molecules
Vibrational fingerprints of molecules and lowdimension materials can be traced with subnanometer resolution by performing Tip-enhanced Raman spectroscopy (TERS) in a localization of light in the plasmonic nanocavity of the STM enables high spatial resoluti ...
AMER CHEMICAL SOC2022A tunable femtosecond fiber laser source for multiphoton emission microscopy
Pierre-Marc Jean Marie Dansette
Second harmonic generation microscopy is used to image interfaces or non-centrosymmetric structures and molecules. Two-photon fluorescence microscopy can image molecules within cells without using markers. Thus those technics have lead to advances in our u ...
EPFL2021System and method for high beam quality pulse generation in mode-locked multimode fiber lasers
Demetri Psaltis, Christophe Moser, Ugur Tegin
A system and method to generate ultrashort high beam quality pulses from spatio- temporally mode-locked multimode fiber laser are described. The invention relies on engineering the intra-cavity pulse propagation in a multimode laser cavity to shape the spa ...
2021Gain-switched semiconductor laser driven soliton microcombs
Tobias Kippenberg, Junqiu Liu, Erwan Guillaume Albert Lucas, Wenle Weng, Jijun He
Dissipative Kerr soliton generation using self-injection-locked III-V lasers has enabled fully integrated hybrid microcombs that operate in turnkey mode and can access microwave repetition rates. Yet, continuous-wave-driven soliton microcombs exhibit low e ...
NATURE RESEARCH2021Dynamics of soliton self-injection locking in optical microresonators
Tobias Kippenberg, Andrey Voloshin, Junqiu Liu, Wenle Weng
Soliton microcombs constitute chip-scale optical frequency combs, and have the potential to impact a myriad of applications from frequency synthesis and telecommunications to astronomy. The demonstration of soliton formation via self-injection locking of t ...
NATURE RESEARCH2021Contactless Optical Packaging Concept for Laser to Fiber Coupling
Yves Bellouard, Saood Ibni Nazir
A novel method for the laser to fiber coupling is presented in which coarse alignment is achieved through micromachined v-grooves and mirrors in a fused silica substrate. Furthermore, fine repositioning is done in a noncontact manner by using a femtosecond ...
2021Laser-induced forward transfer of functional SU-8 microparts
We have developed a robust and universal method to transfer functionalized SU-8 microparts with metallic patterns by laser-induced forward transfer (LIFT) technique. To overcome the difficulty of metal patterning on high-aspect ratio SU-8 microparts on the ...
2021Generating optical pulses via a soliton state of an optical microresonator coupled with a chip based semiconductor laser
Tobias Kippenberg, Hairun Guo, Arslan Sajid Raja
A light pulse source (100), being adapted for generating repetitive optical pulses (1), comprises a continuous wave cw laser device (10) being arranged for providing cw laser light (2), an optical waveguide (20) being optically coupled with the cw laser de ...
2020