Author Affiliations
Abstract
1 State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, China
2 Beijing Key Laboratory of Optical Detection Technology for Oil and Gas, China University of Petroleum, Beijing 102249, China
A lateral photovoltaic effect (LPE) is discovered in an LaTiO3+δ film epitaxially grown on a (100) SrTiO3 substrate. Under the illumination of a continuous 808 nm laser beam that is focused on the LaTiO3+δ film through the SrTiO3 substrate, the open-circuit photovoltage depends linearly on the illuminated position. The sensitivity of the LPE can be modified by the bias current. The LaTiO3+δ film shows a stable photoelectric property under the high pressure, up to 9 MPa. These results indicate that the LaTiO3+δ films can give rise to a potentially photoelectronic device for near-infrared position-sensitive detection in high-pressure environments.
310.6870 Thin films, other properties 230.5160 Photodetectors 040.5350 Photovoltaic Chinese Optics Letters
2016, 14(1): 013101
Author Affiliations
Abstract
Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, and Center for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100080
Stainless steel-doped SrTiO3 thin films were fabricated by laser molecular beam epitaxy (L-MBE). Nonlinear optical property of the thin film was measured by the single beam Z-scan technique at the wavelength of 532 nm. Two two-phonon absorption coefficient and nonlinear refractive index were determined to be 9.37×10^(-7) m/W and 1.55×10^(-6) esu, respectively. The merit figure T was calculated to be 1.8, satisfying condition T < 2 for an optical switch. The thin film has a very promising prospect for the applications in optical device.
310.6860 thin films optical properties 310.3840 materials and process characterization 230.4320 nonlinear optical devices Chinese Optics Letters
2003, 1(3): 03165
