Ponències/Comunicacions de congressos
Recent Submissions
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Suppression of modulation instability in pump modulated flat-mirror VECSELs
(International Society for Photo-Optical Instrumentation Engineers (SPIE), 2016)
Conference report
Restricted access - publisher's policyWe show that modulation instability (MI) can be suppressed in vertical external cavity surface emitting lasers (VECSELs) by introducing a periodic spatio-temporal modulation of the pump profile which in turn allows a simple ... -
Turbulence control by non-Hermitian potentials
(Institute of Electrical and Electronics Engineers (IEEE), 2021)
Conference report
Open AccessWe propose a method to control turbulence by the introduction a non-Hermitian spatiotemporal modulation, based on the energy redirection from unstable to stable modes by the unidirectional coupling induced by these potentials ... -
Restricted Hilbert transform for feasible light management
(International Society for Photo-Optical Instrumentation Engineers (SPIE), 2021)
Conference report
Open AccessA feasible restricted Hilbert Transform (HT) is presented to solve the challenging practical realization of non-Hermitian systems, restricting the complex susceptibility within practical limits. Beyond closed-conservative ... -
Domain statistics analysis of random nonlinear crystals via second harmonic generation
(Institute of Electrical and Electronics Engineers (IEEE), 2017)
Conference report
Restricted access - publisher's policyWe demonstrate an indirect non-destructive optical method for the characterization of ferroelectric domain size and distribution based on the analysis of the generated second harmonic spatial distribution. This method is ... -
Harmonic generation at the nanoscale in strategic materials for nanophotonics
(International Society for Photo-Optical Instrumentation Engineers (SPIE), 2021)
Conference report
Restricted access - publisher's policyThe use of semiconductors, metals and conductive oxides in the process of fabrication of actual nano devices is at the front edge of nowadays technology, exploiting the properties of light propagation and localization at ... -
Harmonic generation from gold nanolayers: bound and hot electron contributions
(International Society for Photo-Optical Instrumentation Engineers (SPIE), 2021)
Conference report
Restricted access - publisher's policyCurrently, nanostructures are routinely fabricated and integrated in different photonic devices for a variety of purposes and applications. For instance, in order to engineer properly nano-antennas or filters, it is important ... -
Sound directivity by PT-symmetric acoustic dipoles
(International Society for Photo-Optical Instrumentation Engineers (SPIE), 2021)
Conference report
Open AccessThe new physics of open-dissipative, non-Hermitian systems have become a fruitful playground to uncover novel physical phenomena, even in exotic or counterintuitive ways, especially in optics and, more recently, also in ... -
Towards a feasible non-Hermitian light management
(2020)
Conference report
Restricted access - publisher's policyNovel physical phenomena arising from the interplay between gain and loss is beyond the recent focus on Non-Hermitian systems. The spatial symmetry breaking in such systems may lead to an arbitrarily control of the flow ... -
Spatiotemporal stabilization of PT-symmetric BAS lasers
(International Society for Photo-Optical Instrumentation Engineers (SPIE), 2020)
Conference report
Restricted access - publisher's policyWe propose a compact solution to spatially regularize and temporally stabilize edge emitting (broad area) semiconductor lasers. The scheme relays on the local asymmetries generated by a non-Hermitian potential with a central ... -
Flat focusing mirrors
(Institute of Electrical and Electronics Engineers (IEEE), 2015)
Conference report
Restricted access - publisher's policyWe present the flat focusing mirror - the dielectric mirrors capable to focus and image the narrow beams in reflections. The mirrors are flat, and transversally invariant, i.e. have no optical axis. We consider two different ... -
Second harmonic generation from an ITO nanolayer: experiment versus theory
(International Society for Photo-Optical Instrumentation Engineers (SPIE), 2020)
Conference report
Open AccessWe report a comparative experimental and theoretical study of second harmonic generation from a 20nm-thick indium tin oxide nanolayer in the proximity of the epsilon-near-zero condition. We record the efficiency of the ... -
Forecasting the amplitude of high-intensity chaotic laser pulses
(International Society for Photo-Optical Instrumentation Engineers (SPIE), 2020)
Conference report
Open AccessForecasting the dynamics of chaotic systems from the analysis of their output signals is a challenging problem with applications in most fields of modern science. In this work, we use a laser model to compare the performance ...
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