The characteristics of blue (-450 nm) and blue-green (>480 nm) LDs on free standing GaN substrates are presented and comprehensive PL (photoluminescence), TRPL (time resolved photoluminescence) ...

“In principal, this could be used to double the data speed of laser communication,” added CCNY Distinguished Professor of Physics and co-author Robert Alfano.

INTRODUCTION The term LASER is an acronym for Light Amplification by Stimulated Emission of Radiation. The first effective laser was developed in the 1960s, although the theoretical framework had been ...

In his first term, Trump chased Democrats laser pointer; now, they re chasing his. No issue illustrates this like immigration; it s become the ...