Browsing by Subject "Òptica no lineal"
Now showing items 1-20 of 130
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A Comparison of Nonlinear Media for All-Optical Signal Processing
(Universitat Politècnica de Catalunya / Technical University of Denmark. Fotonik Department / Politecnico di Torino. Dipartimento di elettronica, 2013-07-31)
Master thesis (pre-Bologna period)
Open Access
Covenantee: Politecnico di Torino[ANGLÈS] This thesis is focused on benchmarking different nonlinear media that are currently used for all-optical signal processing. The materials survey has been based on both low linear losses and highly nonlinear ... -
Activitats del grup de recerca Dinàmica No lineal, Òptica no lineal i Làsers
(Campus de Terrassa de la UPC, 2013-06-13)
Conference report
Open Access -
Adiabatic population transfer in the D1 transition of 39K
(2018-06-22)
Article
Open AccessFour-photon stimulated Raman adiabatic passage–like (STIRAP-like) processes in the frame of the D1 optical transition line of atomic 39K are investigated theoretically by means of a rigorous model that takes into account ... -
All-optical soliton control in photonic lattices
(Universitat Politècnica de Catalunya, 2007-11-27)
Doctoral thesis
Open AccessLos solitones ópticos son paquetes de luz (haces y/o pulsos) que no se dispersan gracias al balance entre difracción/dispersión y no linealidad. Al propagarse e interactuar los unos con los otros muestran propiedades que ... -
Asymmetric solitons and domain walls supported by inhomogeneous defocusing nonlinearity
(2013-12-01)
Article
Restricted access - publisher's policyWe show that an inhomogeneous defocusing nonlinearity that grows toward the periphery in the positive and negative transverse directions at different rates can support strongly asymmetric fundamental and multipole bright ... -
Avalanche of stimulated forward scattering in high harmonic generation
(2016-04-05)
Article
Open AccessOptical amplifiers in all ranges of the electromagnetic spectrum exhibit an essential characteristic, namely the input signal during the propagation in the amplifier medium is multiplied by the avalanche effect of the ... -
Broadband third harmonic generation in quadratic media with disordered ferroelectric domains
(2010)
Conference report
Restricted access - publisher's policyWe study nonlinear frequency generation in media with random ferroelectric domain structure. We show that randomness enables one to realize broadband third harmonic generation via cascading of two second order quasi-phase ... -
Characterization of a quantum frequency converter for quantum repeater applications
(Universitat Politècnica de Catalunya, 2012-09-03)
Master thesis
Open Access[ANGLÈS] Quantum frequency conversion of quantum memory compatible photons to telecom wavelength is a requirement for the implementation of scalable quantum repeaters, a key ingredient for long distance quantum communications ... -
Classical and quantum applications of optical four wave mixing in an integrated silicon nitride platform
(Universitat Politècnica de Catalunya, 2014-12-19)
Master thesis (pre-Bologna period)
Open Access
Covenantee: University of Colorado Boulder[ANGLÈS] Integrated photonics provide a very versatile platform for nonlinear optics experiments, due to the tight field confinement that high index contrast structures offer and their great degree of tunability. Two ... -
Coherent amplification of attosecond light pulses in the water-window spectral region
(2015-02-23)
Article
Open AccessWe present a theoretical study on coherent extreme ultraviolet (XUV) attosecond pulse amplification mediated by nonlinear parametric enhanced forward scattering occurring in the interaction of a strong femtosecond infrared ... -
Compact ultrafast semiconductor disk laser: targeting GFP based nonlinear applications in living organisms
(2011-03-01)
Article
Restricted access - publisher's policyWe present a portable ultrafast Semiconductor Disk Laser (SDL) (or vertical extended cavity surface emitting laser—VECSELs), to be used for nonlinear microscopy. The SDL is modelocked using a quantum-dot semiconductor ... -
Comparative analysis of ferroelectric domain statistics via nonlinear diffraction in random nonlinear materials
(2018-01-22)
Article
Open AccessWe present an indirect, non-destructive optical method for domain statistic characterization in disordered nonlinear crystals having homogeneous refractive index and spatially random distribution of ferroelectric domains. ... -
Continuous-wave optical parametric oscillators and frequency conversion sources from the ultraviolet to the mid-infrared
(Universitat Politècnica de Catalunya, 2013-10-24)
Doctoral thesis
Open AccessHigh-power, continuous-wave (cw) optical parametric oscillators (OPOs), from the ultraviolet (UV) and visible to the near- and mid-infrared (IR) wavelength range, are of interest for a variety of applications such as ... -
Controllable coherent backscattering of light in disordered media filled with liquid crystal
(2018-05-09)
Article
Open AccessWe have investigated multiple scattering of light in a disordered system based on liquid crystals for a temperature-controllable random laser. Coherent backscattering measurements at several temperatures have been well ... -
Controlling the leader-laggard dynamics in delay-synchronized lasers
(2007)
Article
Restricted access - publisher's policy -
Core-level attosecond transient absorption spectroscopy of laser-dressed solid films of Si and Zr
(American Physical Society, 2016-10-12)
Article
Open AccessWe investigated experimentally as well as theoretically the ultrafast response of the wave function of the conduction band (CB) of Si and Zr to a near-infrared laser field using extreme ultraviolet (XUV) absorption ... -
Design and characterization of fs OPO for the near-to mid-infrared
(Universitat Politècnica de Catalunya, 2012-09-12)
Master thesis
Open Access[ANGLÈS] We demonstrate a stabilized phase-locked divide-by-2 synchronously pumped optical parametric oscillator (SPOPO) based on BiB3O6 (BIBO) a crystal with type I interaction in the xz plane operating in degenerate ... -
Development of a tunable continuous wave optical parametric oscillator as a light source for characterizing optical components in the aerospace sector
(Universitat Politècnica de Catalunya, 2021-07-19)
Master thesis
Restricted access - author's decision
Covenantee: Radiant Light -
Development of high-power picosecond fiber-based ultraviolet source
(Universitat Politècnica de Catalunya, 2014-09-08)
Master thesis
Open Access[ANGLÈS] We report a high-power picosecond ultraviolet source at 266 nm in a compact design based on single-pass fourth harmonic generation and mode-locked Yb-fiber laser. The configuration has two stages: SHG of 1064 nm ... -
Distinguishing signatures of determinism and stochasticity in spiking complex systems
(2013-05-07)
Article
Open Access
