For more than 30 years, laser frequency conversion based on nonlinear optical crystals has dramatically enhanced the accessible wavelength ... to hand-held laser pointers and flight-hardened ...

The better quality DPSS laser pointers include a quality IR filter to remove it; cheaper ones often fail to include this essential safety feature. What wavelengths you’re working with are ...

Indeed, green laser pointers and miniature colour laser projectors ... which was previously confined to operation in blue–green wavelengths below 500 nm, could indeed be the best candidate ...

significantly enhancing information transmission compared to traditional single-wavelength lasers. A widely recognized ...