We present work on laser resonances in dielectric spheres. Experimentally, the fluorescence line width of a dye-doped microsphere decreases with increasing pump intensity. Theoretically, we corroborate this observation and derive a new laser threshold criterion.
© 2005 Optical Society of America
K. L. van der Molen, P. Zijlstra, A. Lagendijk, and A. P. Mosk, "Laser Threshold of Mie Resonances," in Photonic Metamaterials: From Random to Periodic, Technical Dgest (CD) (Optical Society of America, 2006), paper WD17.
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