Tunable, room-temperature, amplified stimulated emission (ASE) is generated in quantum dot (QD)-doped nanocomposites through two-photon optical pumping in the near infrared (see figure). Utilizing a zirconia host matrix temporal stability comparable to that of ASE generated through optical pumping in the 1-photon excitation region is demonstrated.
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Jasieniak et al. (2007) studied this question.
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