Nanolaser (image) University of Copenhagen - Niels Bohr Institute Caption The nanolaser is based on the disorder in the pattern of holes in the photonic crystal. The light source is built into the photonic crystal itself, which is clear as glass and when the light hits a hole it is reflected and is channeled into the so-called waveguide, the crystal's middle lane. But the light is thrown back and forth in the photonic crystal and due to imperfections is intensified and spontaneously turns into laser light. Credit Quantum Photonics, Niels Bohr Institute Usage Restrictions Quantum Photonics, Niels Bohr Institute Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.