Wen Qiye
+
Doctor of Engineering
With Certificate of Graduation for Doctorate Study
Personal Information
Gender:Male
Date of Employment:2005-04-01
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Doctor of Engineering
With Certificate of Graduation for Doctorate Study
Gender:Male
Date of Employment:2005-04-01
E-Mail:2dfae7fbc3b4eee77cbc83e6dc0991c98a03764bcc68440b36c566a8436e2ae8a1583db720d39738c58ecf51abdfc0792241b0c642189c27038028cf0502664fcf2ad60fb7a8e4099e84c7a18122e783ed3307500b5c9fbe19c3e89a1d71dd219103fa75b78e4c54f92297151d3fe6fc58621daf6a763c7e396f0951bd7581e1
Email:c045ee02cf98f3c8badd036e7bb5177b47f43a3c5e8068fdb1fbaf5b1a2b1c379d52673dfd4418a27d6de7464b5824033fcc7853b02961697e9d54402740773f73b957f231b409a9b1301b36a226460ea4a21a697903124a28bd1e0b5beb7fc196c290c4a3c04f9e1afef461deb669e658a79d928965266b30d2529ad49f5d79
Affiliation of Author(s):[1]Univ Elect Sci & Technol China, State Key Lab Elect Films & Integrated Devices, Chengdu 610054, Peoples R China;[2]Tianjin Univ, Coll Precis Instrument & Optoelect Engn, Inst Laser & Optoelect, Tianjin 300072, Peoples R China
Journal:CHINESE PHYSICS LETTERS
Abstract:Fe-doped CeO2 is synthesized by ceramic method and the effects of Fe doping on the structure and properties are characterized by ordinary methods and terahertz-time domain spectrometer (THz-TDS) technique. Our results show that pure CeO2 only has a small dielectric constant epsilon of 4, while a small amount of Fe (0.9 at.%) doping into CeO2 promotes densification and induces a large epsilon of 23. From the THz spectroscopy, it is found that for undoped CeO2 both the power absorption and the index of refraction increase with frequency, while for Fe-doped CeO2 we measure a remarkable transparency together with a flat index curve. The absorption coefficient of Fe-doped CeO2 at frequency ranging from 0.2 to 1.8 THz is less than 0.35 cm(-1), implying that Fe-doped CeO2 is a potential THz optical material.
Document Type:Article
Volume:26
Issue:4
ISSN No.:0256-307X
Translation or Not:no
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