Publication
In situ monitoring of femtosecond laser-induced modifications in dielectrics
Publications associées (67)
Surface second-harmonic generation from coupled spherical plasmonic nanoparticles: Eigenmode analysis and symmetry properties
Olivier Martin, Jérémy Butet, Shourya Dutta Gupta
The surface second-harmonic generation from interacting spherical plasmonic nanoparticles building different clusters (symmetric and asymmetric dimers, trimers) is theoretically investigated. The plasmonic eigenmodes of the nanoparticle clusters are first ...
Amer Physical Soc2014High throughput second harmonic imaging for label-free biological applications
Pierre Magistretti, Sylvie Roke, Aleksandra Radenovic, Carlos Alberto Macias Romero, Orly Bagunu Tarun, Pierre Marquet, Pascal Jourdain, Vitalijs Zubkovs, Marie Eve Pascale Didier
Second harmonic generation (SHG) is inherently sensitive to the absence of spatial centrosymmetry, which can render it intrinsically sensitive to interfacial processes, chemical changes and electrochemical responses. Here, we seek to improve the imaging th ...
Optical Society of America2014Pump pulse width and temperature effects in lithium niobate for efficient THz generation
We present a study on THz generation in lithium niobate pumped by a powerful and versatile Yb:CaF2 laser. The unique laser system delivers transform-limited pulses of variable duration (0.38-0.65 ps) with pulse energies up to 15 mJ and center wavelength of ...
Optical Soc Amer2013Characterization of optical polarization converters made by femtosecond laser writing
Recently, new types of silica polarization converters fabricated by femtosecond lasers have been introduced. These devices use spatially arranged nanogratings found under certain femtosecond laser exposure conditions in fused silica to create arbitrary pol ...
2013Spectral characterization of fully phase-matched high harmonics generated in a hollow waveguide for free-electron laser seeding
Christoph Peter Hauri, Fernando Ardana Lamas
We present a bright and coherent soft x-ray source based on high harmonic generation delivering up to 10(10) photons per second centered at 120 eV within an 80 eV bandwidth. The source profits from fully phase-matched harmonic generation in an unmodulated ...
Institute of Physics (IoP) and Deutsche Physikalische Gesellschaft2013Near-Nyquist optical pulse generation with fiber optical parametric amplification
Camille Sophie Brès, Mohammad Amin Shoaie
A novel method using optical fiber parametric amplification and phase modulation is proposed in order to generate Nyquist pulses. Using parabolic pulses as a pump, we show theoretically that it is possible to generate Nyquist pulses. Furthermore, we show t ...
Optical Society of America2012Laser-driven generation of intense single-cycle THz field
Christoph Peter Hauri, Fernando Ardana Lamas
We report on laser-based, high power single-cycle THz source. The THz radiation is generated by four-wave mixing in plasma and by optical rectification in organic salt crystal pumped by powerful optical parametric amplifier. The first approach permits the ...
2012