Direct green lasers are expected to be manufactured in a manner similar to red and blue lasers available today, facilitating lower cost and rapid scalability to commercial quantities.

ENGADGET: Microvision integrates direct green laser into pico projector prototype, completes RGB achievement

He uses an improbable combination of green algae, blue lasers, gene therapy and fiber optics to map neural circuits deep inside the brain with a precision that has never been possible before.

FORBES: Magazine Article

Current Blu-ray lasers emit light in the blue part of the electromagnetic spectrum (about 405 nm wavelength).

FORBES: What is the Future of Optical Disc Technology and who will Use It?

For example, "blue skies", curiosity-driven research into lasers over 50 years ago now has applications in everything from DVD players to surgery.

BBC: Viewpoint: 'Spend 4G cash on science'