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Nanophotonic Devices - Spontaneous Emission Faster than Stimulated Emission
Technical Report,01 Aug 2009,31 Jul 2014
REGENTS OF THE UNIVERSITY OF CALIFORNIA, THE UNIVERSITY OF BERKELEY BERKELEY United States
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For almost 50 years, stimulated emission has been stronger and far more important than spontaneous emission. Indeed spontaneous emission has been looked down upon, as a weak effect. Now a new science of enhanced spontaneous emission is emerging, that will make spontaneous emission stronger and faster than any possible stimulated emission. This new science depends upon the use of nanoscale metallic optical elements, as antennas for spontaneous emission. We have calculated that the overall increase in spontaneous emission rate can be roughly 4 orders of magnitude, before the onset of unacceptable Ohmic losses, defined as non-radiative losses is greater than 50.
APPROVED FOR PUBLIC RELEASE