Nonlinear refraction and absorption properties of optical materials for high-peak-power long-wave-infrared lasers
Mikhail Polyanskiy, Igor Pogorelsky, M. Babzien, Konstantin L. Vodopyanov, M. Palmer
Abstract
Optical materials transparent in the CO 2 laser wavelength range have been evaluated regarding their suitability for components in ultrashort-pulse (≤ a few ps), high-peak-power (≥ a few TW) long-wave infrared (LWIR) lasers. We provide values for the nonlinear refractive index ( n 2 ) for seventeen materials, and onsets for nonlinear absorption for eleven materials. Characterizations were performed using a 2 ps laser pulse at λ =9.2 μ m. This paper methodically presents the newly acquired data in conjunction with existing literature on linear optical properties, establishing it as a comprehensive reference for designing high-peak-power LWIR laser systems.
Topics & Concepts
Materials scienceLaserOpticsRefractive indexInfraredAbsorption (acoustics)OptoelectronicsUltrashort pulseOptical powerWavelengthNonlinear opticsRefractionPhysicsSolid State Laser TechnologiesNonlinear Optical Materials StudiesLaser Material Processing Techniques