High-performance 937-nm laser lets scientists see deeper with lower power

Two-photon microscopy (2PM) plays a reliably efficient role in noninvasive deep-tissue imaging in biomedical investigation. Since the invention of the two-photon microscope at the end of the 20th century, there has been a steady flow of related research advancing 2PM--from fluorophores to imaging methods and applications--in the fields of biochemistry and medicine.