Abstract
To understand the two-photon excitation dynamics, femtosecond time-resolved transient absorption and Z-scan methods were employed. From these studies, the contribution of excited state absorption from that due to direct two-photon absorbers was separated. Efficient two-photon up-conversion lasing and power limiting was achieved. Another phenomenon, two-photon backward-stimulated emission phase-conjugation was also found.
Original language | English |
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Pages (from-to) | 256-257 |
Number of pages | 2 |
Journal | Conference Proceedings - Lasers and Electro-Optics Society Annual Meeting-LEOS |
Volume | 1 |
State | Published - 2000 |