Photonic crystal microdisk lasers with exceptional spontaneous emission coupling to the lasing mode

Details Photonic crystal microdisk lasers with exceptional spontaneous emission coupling to the lasing mode Photonic crystal microdisk lasers with exceptional spontaneous emission coupling to the lasing mode

2011-09-11

arxiv.org/abs/1109.2277v2

Physics

Optics

4 figures and 10 pages

Scientific paper

A long existing issue for microdisk lasers is the small spontaneous emission coupling rate ({\beta}) in microdisk,. We found that it is due to the coupling of emitter spontaneous emission into competing Fabry-Perot (FP) modes in the microdisk cavity. Based on this analysis, we propose a new type of photonic crystal microdisk (PCM) laser to drastically suppress the photonic density of states in the vertical FP modes. As a result, we obtained a three fold increase of {\beta} than previously reported highest {\beta} of 0.15 at room temperature. The spontaneous emission control in truncated photonic crystals becomes efficient when the period number is more than one. We also demonstrate a three-stack PCM laser at low temperature with {\beta} as high as 0.72, which is 24 times higher than that in typical single microdisk (0.03), which also results in 50% threshold reduction.

Affiliated with

Also associated with

No associations

Rating

Photonic crystal microdisk lasers with exceptional spontaneous emission coupling to the lasing mode does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Photonic crystal microdisk lasers with exceptional spontaneous emission coupling to the lasing mode, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photonic crystal microdisk lasers with exceptional spontaneous emission coupling to the lasing mode will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-19846