"Chunlei Guo, associate professor of optics at the University of Rochester,
.... have been able to squeeze out fluorescent-like energy performance from
an incandescent light bulb. The breakthrough boils down to a laser
treatment of the bulb's tungsten filament, a processing step which could one
day become a standard in the light bulb industry."

Too late. Incandescent bulbs will soon be illegal.

http://www.dailytech.com/article.aspx?newsid=15289