摘要Oxyfluoride glass ceramics doped with Er3+/Yb3+ was synthesized. Rare earth ions are doped into fluoride nanocrystals according to x-ray diffractive patterns. The enhanced red emission of Er3+/Yb3+ in the fluoride nanocrystals, excited by xenon lamp at 449 nm, is investigated and analyzed by cooperative quantum cutting mode. The cross relaxation appears from 4F5/2 →4F9/2 to 4I15/2 →4I13/2 because of the nearer distance of rare earth ions and the larger absorption section of 4I15/2 →4I13/2 in the quantum cutting. It results in two emissions of 4F9/2 →4I15/2 and 4I13/2 →4I15/2. This implies that a 449 nm photon could dissolve into two photons with wavelength 665 nm and 1530 nm. This could be an effective way to obtain 1530 nm emission for optical communication.
Abstract：Oxyfluoride glass ceramics doped with Er3+/Yb3+ was synthesized. Rare earth ions are doped into fluoride nanocrystals according to x-ray diffractive patterns. The enhanced red emission of Er3+/Yb3+ in the fluoride nanocrystals, excited by xenon lamp at 449 nm, is investigated and analyzed by cooperative quantum cutting mode. The cross relaxation appears from 4F5/2 →4F9/2 to 4I15/2 →4I13/2 because of the nearer distance of rare earth ions and the larger absorption section of 4I15/2 →4I13/2 in the quantum cutting. It results in two emissions of 4F9/2 →4I15/2 and 4I13/2 →4I15/2. This implies that a 449 nm photon could dissolve into two photons with wavelength 665 nm and 1530 nm. This could be an effective way to obtain 1530 nm emission for optical communication.
[1] Wang Y H and Ohwaki J 1993 Appl. Phys. Lett. 63 3268
[2] Tick P A, Borrelli N F, Cornelius L K and Newhouse M A 1995 J. Appl. Phys. 78 6367
[3] Beggioraa M, Reaney I M and Islam M S 2003 Appl. Phys. Lett. 83 467
[4] Tikhomirov V K, Mortier M, Gredin P, Patriarche G, Görller-WalrandC and Moshchalkov V V 2008 Opt. Express 15 14544
[5] Qiao X S, Fan X P, Wang J and Wang M Q 2006 J. Appl. Phys. 99 074302
[6] Mendez-Ramos J, Tikhomirov V K, Rodriguez V D and Furniss D 2007 Alloy. Compd. 440 328
[7] Miyakawa T and Dexter D L 1970 Phys. Rev. B 1 2961
[8] Zhang G Y, Zhao L J, Hou Y B, Xu J J and Shang M R 2000 Chin. Sci. Bull. 45 882
[9] Li Y B, Hou Y B, Zhao S L, Yi L X and Xu X R 2000 Chin. Phys. Lett. 17 515
[10] Qiao X S, Fan X P, Wang M Q, Adam J L and Zhang X H 2006 J. Phys.: Condens. Matter. 18 6937
[11] Yu H, Zhao L J, Liang Q, Meng J, Yu X Y, Tang B Q, Tang L Q andXu J J 2005 Chin. Phys. Lett. 22 1500
[12] Riseberg L A andMoos H W 1968 Phys. Rev. B 174 429
[13] Wegh R T, Donker H, Oskam K D and Meijerink A 1999 Science 283 663
[14] Ende B M, Aarts L and Meijerink A 2009 Adv. Mater. 21 3073
[15] Liu B, Zhao L, Sun J, Yu H, Song J and Xu J J 2007 Chin. Phys. Lett. 24 527
[16] Chen D Q, Wang Y S, Yu Y L, Huang P and Weng F Y 2008 Opt. Lett. 33 1884
[17] Chen X B, Wu J G, Xu X L, Zhang Y Z and Sawanobori N 2009 Opt. Lett. 34 887
2011, Vol. 28 
