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Spontaneous emission and laser oscillation properties of microcavities containing a dye solution

1991; American Institute of Physics; Volume: 58; Issue: 23 Linguagem: Inglês

10.1063/1.104834

1520-8842

H. Yokoyama, M. Suzuki, Y. Nambu,

Photonic and Optical Devices

An experimental study on spontaneous and stimulated emission properties of planar optical microcavities confining an organic dye solution is reported. The lasing threshold in an input-output curve became indistinct by decreasing the distance between a pair of dielectric reflectors. The coupling ratio of spontaneous emission into a laser mode was as large as 0.2 for a cavity half a wavelength distance. Differences between the spontaneous emission dominant regime and the stimulated emission dominant regime were also examined with emission spectra and emission lifetime measurements.