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- noun metrology An
SI unitof energy, work, and heat equal to 10−15 joules.
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NFL gates are projected to exhibit femtojoule power dissipations and femtosecond switching speeds at finite temperatures.
Using the gate oxide as an optical channel, electro-optic modulation is achieved in device volumes of half of a cubic wavelength with femtojoule switching energies and the potential for gigahertz modulation frequencies.