A study was performed on unidirectional lasing from InGaN multiple-quantum-well spiral-shaped micropillars. It was shown that the spiral microcavity lases near 400 nm when optically pumped with 266 or 355 nm light, at room temperature. The results showed that a reduction in the lasing threshold and an improvement in unidirectionality occurred when the microcavity is selectively pumped near its boundary.
|Original language||English (US)|
|Number of pages||3|
|Journal||Applied Physics Letters|
|State||Published - Sep 1 2003|
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)