Photonic Crystal Laser

Yasutomo ota 1 ryota katsumi 2 katsuyuki watanabe 1 satoshi iwamoto 1 2 yasuhiko arakawa 1.

Photonic crystal laser.

This product is a surface emitting semiconductor laser with a photonic crystal structure that features a narrow spot beam pattern narrow beam spread angle circular shape and a narrow spectral linewidth. Topological photonic crystal nanocavity laser. The optical properties can be used with mechanical structures. The measured power conversion efficiency and differential quantum efficiency of the perovskite photonic crystal laser are 13 8 0 8 and 35 8 5 4 respectively.

Wafer a includes an active layer for the injection of electrons and holes and a photonic crystal as the upper most layer. We report on the creation of a current driven blue violet photonic crystal surface emitting laser. Photonic crystals occur in nature in the form of structural coloration and animal reflectors and in different forms promise to be useful in a range of applications. Photonic crystal phc structures can provide wavelength scale laser cavities with high quality factors q factors representing an extremely long photon lifetime.

The photonic crystal laser could be used for integrated optical detection of a nanoresonator beam. The photonic crystal we have fabricated is a suspended slab of material. Importantly our approach enables scalability of the thin film lasers to a two dimensional multielement pixelated array of microlasers which we demonstrate as a proof of concept. In a sense it already has a micromechanical aspect.

The integration of wafers a and b results in the photonic crystal being sandwiched to complete the device. The principles of nanomechanical systems could also. A photonic crystal is a periodic optical nanostructure that affects the motion of photons in much the same way that ionic lattices affect electrons in solids. We demonstrate polarization mode selection in a two dimensional 2d photonic crystal laser by controlling the geometry of the unit cell structure.

In 1887 the english physicist lord rayleigh experimented with. As the band diagram of the square lattice photonic crystal is influenced by the unit cell structure calculations reveal that changing the structure from a circular to an elliptical geometry should result in a strong modification of the. This laser consists of two wafers a and b.