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Misleading title. Semiconductor lasers are in general already >30% efficient there is no way to make a laser 250x more efficient. The researchers only improved
by kken 12y ago
Misleading title. Semiconductor lasers are in general already >30% efficient there is no way to make a laser 250x more efficient. The researchers only improved a special type of laser (polariton laser)
- dang 12y agoOk, we'll take that 250x bit out of the title.
- gnoway 12y agoI didn't get that this was supposed to be 250x more efficient, just that it required ~250x less energy and was potentially more efficient. It reads like there is a minimum amount of energy required to establish and maintain a laser beam using similar materials today, and they have lowered that minimum threshold by a factor of ~250. The resulting energy/intensity/whatever of the beam vs. the ongoing input energy is not discussed in the article.