Experimental observation of optically generated unipolar electromagnetic precursors
Igor Ilyakov, B. V. Shishkin, E. S. Efimenko, S. B. Bodrov, М. И. Бакунов
Abstract
It was recently predicted [Phys. Rev. A95(6), 063817 (2017) 10.1103/PhysRevA.95.063817] that an intense femtosecond laser pulse propagating in an electro-optic crystal and producing free carriers via multiphoton ionization can generate a unipolar electromagnetic precursor propagating ahead of the laser pulse. Here we report the experimental observation of this phenomenon in a GaP crystal excited by an amplified Ti:sapphire laser.
Topics & Concepts
FemtosecondLaserOpticsSapphireExcited stateIonizationMaterials scienceCrystal (programming language)Ti:sapphire laserElectromagnetic pulsePulse (music)Electromagnetic radiationOptoelectronicsPhysicsAtomic physicsIonQuantum mechanicsDetectorComputer scienceProgramming languageLaser-Matter Interactions and ApplicationsTerahertz technology and applicationsSemiconductor Quantum Structures and Devices