Making incandescent bulbs incredibly efficient using photonic crystals

This is being hailed as a breakthrough; here are some earlier stories from the Laser Focus World archives on the same topic.

A nanophotonic comeback for incandescent bulbs?
from (e) Science News
Traditional light bulbs, thought to be well on their way to oblivion, may receive a reprieve thanks to a technological breakthrough. Incandescent lighting and its warm, familiar glow is well over a century old yet survives virtually unchanged in homes around the world. That is changing fast, ...
Read original article at (e) Science News
The Laser Focus World take:

This is being hailed as a breakthrough; I would just like to highlight here a number of news stories from the Laser Focus World archives that describe earlier research, including by MIT, on this very topic (tungsten light emitter/absorber augmented with a photonic crystal).

June 2002 Laser Focus World:Tungsten lattice turns excess heat into light

December 2008 Laser Focus World:Optimized tungsten photonic-crystal emitters outdo blackbodies in IR bands

July 2011 Laser Focus World:
MIT researchers use tungsten photonic crystals to boost the efficiency of thermophotovoltaic cells

And here's one in which thin-film coatings rather than photonic crystals were used to achieve more-efficient incandescent illumination in tungsten:
August 2010 Laser Focus World:LIGHTING: Tailored emissivity paves way for 400 lm/W incandescent lamps

by John Wallace
Laser Focus World

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