Abstract
CdTe quantum dots (QDs) were home fabricated in silicate glasses through the conventional melt-quenching technique. Raman analysis confirms the formation of CdTe QDs, and the tunable optical absorption and emission properties exhibit a dependence on QD-size. Meanwhile, the luminescence of CdTe QDs in silicate glasses excited by an infrared femtosecond laser was demonstrated to be a two-photon process by measuring the dependence of fluorescence intensity on laser pump power. Two-photon induced luminescence was achieved by both 800 nm and 960 nm femtosecond laser pulses.
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