We experimentally demonstrated a method of generating continuously wavelength-switchable optical vortex beams (OVBs) in ......

A multi-wavelength sampled Bragg grating (SBG) quantum cascade laser array operating between 7.32 and 7.85 μm is report......

In this work, we investigate the methods to improve the performance of the swept source at 1.0 μm based on a polygon sc......

A band-gap-tailored random laser with a wide tunable range and low threshold through infrared radiation is demonstrated.......

The emission wavelength of a laser is physically predetermined by the gain medium used. Consequently, arbitrary waveleng......