Ultrafast Widefield Mid-Infrared Photothermal Heterodyne Imaging
Eduardo Maia Paiva, Florian M. Schmidt
Abstract
using an external-cavity quantum cascade laser. The system achieved up to 4000 WIPH images per second at a signal-to-noise ratio of 5.52 and 1 μm spatial resolution in a 128 × 128 μm field of view. The technique opens up for real-time chemical imaging of fast processes in biology, medicine, and material science.
Topics & Concepts
ChemistryUltrashort pulsePhotothermal therapyHeterodyne (poetry)InfraredOpticsHeterodyne detectionLaserPhysicsAcousticsSpectroscopy Techniques in Biomedical and Chemical ResearchPhotoacoustic and Ultrasonic ImagingThermography and Photoacoustic Techniques