6533b82ffe1ef96bd12947a7

RESEARCH PRODUCT

Universal charts for optical difference frequency generation in the terahertz domain

Alfonso Carmelo CinoRoberto Luigi OliveriAlessandro BusaccaMatteo CherchiSaverio Bivona

subject

Wave propagationComputer scienceTerahertz radiationDegrees of freedom (statistics)FOS: Physical sciencesFrequency conversionSettore ING-INF/01 - ElettronicaOptical pulse generationDomain (software engineering)Semiconductor materialsQuadratic equationQuality (physics)Submillimeter wave transmittersFigure of meritOptical parametric amplifiersElectrical and Electronic EngineeringOptical propagation in nonlinear mediaOptical frequency conversionSettore ING-INF/02 - Campi ElettromagneticiCondensed Matter PhysicsAtomic and Molecular Physics and Opticsoptical parametric amplifiersemiconductor materialNonlinear systemAlgorithmOptics (physics.optics)Physics - Optics

description

We present a universal and rigorous approach to study difference frequency generation in the terahertz domain, keeping the number of degrees of freedom to a minimum, through the definition of a suitable figure of merit. The proposed method relies on suitably normalized charts, that enable to predict the optical-to-terahertz conversion efficiency of any system based on wave propagation in quadratic nonlinear materials. The predictions of our approach are found to be in good agreement with the best experimental results reported to date, enabling also to estimate the d22 nonlinear coefficient of high quality GaSe.

yearjournalcountryeditionlanguage
2010-01-01IEEE Journal of Quantum Electronics
10.1109/jqe.2010.2042791https://doi.org/10.1109/JQE.2010.2042791