Laser-noise-induced heating in far-off resonance optical traps
T. A. SavardPhysics Department, Duke University, Durham, North Carolina 27708-0305K. M. O’HaraPhysics Department, Duke University, Durham, North Carolina 27708-0305J. E. ThomasPhysics Department, Duke University, Durham, North Carolina 27708-0305
1997en
ABI
Annotatsiya
Using a simple model, we calculate the heating rates arising from laser intensity noise and beam-pointing fluctuations in far-off resonance optical traps. Intensity noise causes exponential heating, while beam-pointing noise causes heating at a constant rate. The achievement of heating time constants well beyond 10 sec imposes stringent requirements on the laser noise power spectra. Noise spectra are measured for a commercial argon-ion laser to illustrate the expected time scales.
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