Luminescence from Spherically and Aspherically Collapsing Laser Induced Bubbles

Ultraviolet upconversion luminescence of

Ultraviolet upconversion luminescence of Gd3+ from Ho3+ and Gd3+ codoped oxide ceramic induced by 532-nm CW laser excitation

✍ Feng Qin; Yangdong Zheng; Ying Yu; Changbin Zheng; Pouran Sadat Tayebi; Zhiguo Z 📂 Article 📅 2011 🏛 Elsevier Science 🌐 English ⚖ 845 KB

Ultraviolet upconversion emissions around 314 nm from 6 P J states of Gd 3+ ions have been observed in Y 1.98 -x Gd x Ho 0.02 O 3 (x = 0.02, 0.10, 0.20, and 0.30) oxide ceramics under the excitation of a continuous-wave 532nm laser. We found that the energy transfer process from Ho 3+ to Gd 3+ plays