Laser & Optoelectronics Progress, Volume. 52, Issue 1, 13102(2015)
Research on the Technology of Pulsed Laser Deposition of Pd/Ag Films
Pulsed laser deposition is a potential preparation method for optical fiber hydrogen sensor. Pd/Ag thin films are prepared through pulsed laser deposition at a low temperature by excimer laser. It is found that Pd/Ag thin films with fine crystal structure are obtained under high pulse laser energy at low temperature by X-ray diffraction (XRD) and atomic force microscope (AFM) methods. The F-P sensor is packaged in a casing structure that can limit the expansion direction of Pd/Ag thin films which absorbs hydrogen. Hydrogen sensing probe is made to test the hydrogen sensing properties of Pd/Ag thin films for the characteristic that the expansion of Pd/Ag thin films which absorbs hydrogen can lead to the change of the F-P cavity. Experiment results show that the sensor can be used to detect the changes of the hydrogen concentration.
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Hu Pan, Tong Xinglin, Hu Wei, Cai Ting, Guo Qian, Wang Kun, Zhao Minli. Research on the Technology of Pulsed Laser Deposition of Pd/Ag Films[J]. Laser & Optoelectronics Progress, 2015, 52(1): 13102
Category: Thin Films
Received: Jul. 8, 2014
Accepted: --
Published Online: Dec. 19, 2014
The Author Email: Pan Hu (whut_panhu@163.com)