Laser

Single-molecule nanospectroscopyMicroscopic understanding and molecular-level control of individual electronic quantum states of a single molecule are a long-standing challenge in spectroscopy. Imada et al. found that a narrow-line tunable…

Chip-based frequency combsThe realization of optical frequency combs, light sources with precisely spaced frequencies across a broad spectrum of wavelengths, in dielectric microresonators has affected a range of applications from imaging…