Optoelectronics Letters, Volume. 12, Issue 3, 199(2016)
Photonic bandgap amorphous chalcogenide thin films with multilayered structure grown by pulsed laser deposition method
Amorphous chalcogenide thin films were fabricated by the pulsed laser deposition technique. Thereafter, the stacks of multilayered thin films for reflectors and microcavity were designed for telecommunication wavelength. The prepared multilayered thin films for reflectors show good compatibility. The microcavity structure consists of Ge25Ga5Sb10S65(doped with Er3+) spacer layer surrounded by two 5-layer As40Se60/Ge25Sb5S70reflectors. Scanning/transmission electron microscopy results show good periodicity, great adherence and smooth interfaces between the alternating dielectric layers, which confirms a suitable compatibility between different materials. The results demonstrate that the chalcogenides can be used for preparing vertical Bragg reflectors and microcavity with high quality.
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ZHANG Shao-qian, Petre Němec, Virginie Nazabal, JIN Yu-qi. Photonic bandgap amorphous chalcogenide thin films with multilayered structure grown by pulsed laser deposition method[J]. Optoelectronics Letters, 2016, 12(3): 199
Received: Jan. 11, 2016
Accepted: --
Published Online: Oct. 12, 2017
The Author Email: Shao-qian ZHANG (zhangsq@dicp.ac.cn)