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Room Temperature Bolometric Applications Using Manganese Oxide Thin Films

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Abstract

We report the optical responses of magnetic manganese oxide La2/3Ca1/3MnOδ thin films at room temperature. The voltage responses to a He-Ne laser at the wavelength of 0.63 μm and incident infrared (IR) power at the wavelength of 8-14 μm were measured. The measured signals were attributably to a bolometric response due to the heating of the sample by radiation. We report the optical responses in La2/3Ca1/3MnOδ thin films as a function of chopping frequency and bias current. The noise behavior around room temperature was also discussed. It is suggested that perovskite manganese oxide thin films are suitable candidates for uncooled optical detectors.

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Authors and Affiliations

  1. Department of Optoelectronic Engineering, Huazhong University of Science and Technology, Wuhan, 430074, Hubei, People's Republic of China

    J. H. Hao

  2. Department of Physics, The Pennsylvania State University, University Park, Pennsylvania, 16802, USA

    J. H. Hao

  3. Department of Optoelectronic Engineering, Huazhong University of Science and Technology, Wuhan, 430074, Hubei, People's Republic of China

    X. Mao & C. H. Chen

  4. Department of Electronic Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, Hubei, People's Republic of China

    D. X. Lu

Authors
  1. J. H. Hao
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  2. X. Mao
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  3. C. H. Chen
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  4. D. X. Lu
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Hao, J.H., Mao, X., Chen, C.H. et al. Room Temperature Bolometric Applications Using Manganese Oxide Thin Films. International Journal of Infrared and Millimeter Waves 20, 2113–2120 (1999). https://doi.org/10.1023/A:1022699005844

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  • DOI: https://doi.org/10.1023/A:1022699005844

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