Covering all recent advancements in the field, “Tunable Evanescent-Mode Filters: Principles, Implementation, and Applications” discusses fundamentals and applications in tunable evanescent-mode ...

Researchers have created visible lasers of very pure colors from near-ultraviolet to near-infrared that fit on a fingertip. The colors of the lasers can be precisely tuned and extremely fast -- up to ...

Lasers have widespread applications as a light source in a variety of fields, including manufacturing, medicine, high-speed communications, electronics, and scientific research. In recent years, the ...

In a significant advance for impactful technologies such as quantum optics and laser displays for AR/VR, Columbia Engineering’s Lipson Nanophotonics Group has invented what it calls “the first tunable ...

A new technology in the fiber-optics market is striking the right note with investors and raising cash at a time when industry confidence is low and venture capital is hard to find. A number of ...

Figure 1. Schematic of a tunable microlaser based on phase-change perovskite gain medium, sandwiched between Au mirror and DBR reflector sitting on a quartz glass substrate, pumped by blue-violet ...

Researchers developed an ultranarrow bandwidth mode-locked laser with a widely tunable pulse duration, enabling controlled output, for various applications Lasers have widespread applications as a ...