Nano sized laser not visible to the human eye is developed
Published date : 30 July 2012
Article date : 30 July 2012
The ultra nano device is hailed as a breakthrough for emerging photonic technology for applications ranging from computing to medicine. Scientists from the University of Texas at Austin along with colleagues in Taiwan and China have developed an ultra tiny semiconductor laser which is not even visible to the human eye. The nano laser is regarded as key for the development of faster, smaller and lower energy photon-based technologies which includes highly sensitive biosensors for detecting, treating and studying disease.
Until now, the size and performance of photonic devices have been restricted by the three-dimensional optical diffraction limit; the new laser device operates below this level. The current research paper reports on the first operation of a continuous-wave, low-threshold laser below the 3-D diffraction limit.
