Experimental comparison of methods based on falling and rising signal regions for thermal diffusivity measurement by pulsed dual-beam thermal lens spectroscopy - ScienceDirect
About Thermal Lens Effect
HSTL Goggle - Thermal Lens - Smoke | HK Army Paintball
Thermal Lens Microscope - Confocal
Continuous Zoom and Thermal Imaging Lens | MKS Instruments Inc. | Apr 2021 | Photonics.com
Focal Length 15mm 640*480-17um 90% 13.6mm Manual Focus 0.5m to Infinity Ar Thermal Imager Motorized Lens - China Thermal Lens, 8um-12um | Made-in-China.com