Intracavity frequency doubling, explained by RP Photonics Encyclopedia; second-harmonic generation, nonlinear frequency conversion, SHG, doubler crystal, green problem
Necsel SHG Green Laser 53x | Ushio America, Inc.
Changing the Color of Laser Light on The Femtosecond Time Scale - Research & Development World
Green laser engraving&marking machine
Applied Sciences | Free Full-Text | Discretely Tunable Multiwavelength Visible Laser Based on Cascaded Frequency Conversion Processes | HTML
1.5 W green light generation by single-pass second harmonic generation of a single-frequency tapered diode laser
Tilting 'nanocups' double optical frequencies – Physics World
Schematic diagram of the experimental SHG laser setup | Download Scientific Diagram