Directional lasing and energy transfer in ZnO nanotree

Author

Zhaol, F.L. ; Ding, C.R. ; Huang, M. ; Zhao, F.L. ; Yang, X.F. ; Zheng, J.G. ; Zhang, T.R. ; Wu, M.M. ; Tian, Z.R. ; Wang, H.Z.

Author_Institution

State Key Lab. of Optoelectron. Mater. & Technol., Sun Yat-sen Univ., Guangzhou

fYear

2008

fDate

24-27 March 2008

Firstpage

641

Lastpage

644

Abstract

The obliquely branched nanotree structures have been synthesized with the one-pot synthesis directly on the Zn substrate. The directional lasing spectroscopy of the nanometer branched ZnO crystallite arrays has been measured under high intensity femtosecond laser pulse excitation with femtosecond synchroscan streak camera as the detection system. The directional dependant ultrafast fluorescence emission gives clear evidence that there exists intelligent energy flow of ZnO nano-tree structures. Such processes open a way to fabricate the integrated optoelectronic apparatus.

Keywords

II-VI semiconductors; crystallites; fluorescence; high-speed optical techniques; nanostructured materials; semiconductor lasers; wide band gap semiconductors; zinc compounds; ZnO; directional lasing spectroscopy; energy transfer; femtosecond laser pulse excitation; femtosecond synchroscan streak camera; nanometer branched crystallite arrays; obliquely branched nanotree structures; one-pot synthesis; ultrafast fluorescence emission; Cameras; Crystallization; Energy exchange; Laser excitation; Nanostructures; Optical arrays; Optical pulses; Pulse measurements; Spectroscopy; Zinc oxide;

fLanguage

English

Publisher

ieee

Conference_Titel

Nanoelectronics Conference, 2008. INEC 2008. 2nd IEEE International

Conference_Location

Shanghai

Print_ISBN

978-1-4244-1572-4

Electronic_ISBN

978-1-4244-1573-1

Type

conf

DOI

10.1109/INEC.2008.4585568

Filename

4585568