Wide band-gap semiconductors recently have attracted substantial interest for their applications in solid-state electronics and optics [1]. In particular, zinc oxide (ZnO) is a II-VI semiconductor with a wide band-gap of 3.37-eV, and a direct gap structure at room temperature. It is especially attractive because of the recent demonstrations of its applicability as a perspective material for near-UV emitters [2-3] and ultrafast UV light modulators [4]. On the other hand, there is a significant demand for thin-film nonlinear optical materials, which can be easily integrated into an opto-electronic device. It has been recently pointed out that ZnO films have a strong nonlinear second-order optical susceptibility χ(2) and the efficient coherent second harmonic has been generated in thin films of ZnO [5-6]. In this report we demonstrate that nanocrystalline ZnO leads to a very high χ(3) nonlinearity as well, leading to a very efficient non-resonant third harmonic generation from an unamplified near-IR radiation of femtosecond Cr4+:forsterite laser (1200-1300 nm) [7].

© 2003 Optical Society of America

PDF Article
More Like This
Broadband efficient third-harmonic generation in an organic film

M. Cha, G. Ramos-Ortiz, H. T. Kim, H. Choi, S. Thayumanavan, J. Mendez, S. R. Marder, and B. Kippelen
CMT2 Conference on Lasers and Electro-Optics (CLEO) 2003

Direct Backward Third Harmonic Generation in Nanostructures

Chieh-Feng Chang, Hsing-Chao Chen, Miin-Jang Chen, Wei-Rein Liu, Wen-Feng Hsieh, Chia-Hung Hsu, Chao-Yu Chen, Shih-Peng Tai, Fu-Hsiung Chang, Che-Hang Yu, and Chi-Kuang Sun
JTuD83 Conference on Lasers and Electro-Optics (CLEO) 2010

Multiple-harmonic generation on ZnO nanocrystalline film

Thomas Tsang
CFC5 Conference on Lasers and Electro-Optics (CLEO) 2005


You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
Login to access Optica Member Subscription