Physicists have created the tiniest light-emitting diode (LED) displays ever 1. The image above was shown on a monochromatic display with pixels less than 100 micrometres across, about the width ...

Department of Materials Science and Engineering, and Centre for Functional Photonics (CFP), City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong S.A.R. 999077, P.R. China Department of ...

Diode lasers are electrically driven lasers generally made from semiconducting materials. In addition to the optical considerations common with all semiconductors, diode laser structures must also ...

These structures are made on a RogersRT3003 dielectric substrate. Controllable coding is achieved by changing the capacitance value of the varactor diode. A single coding unit can achieve a coding ...