Laser & Optoelectronics Progress, Volume. 59, Issue 23, 2323001(2022)

Fabrication, Characterization and Annealing of Linear Variable Optical Filter in Visible Spectral Region

Kang Ni1, Ertao Hu1、*, Min Wang1, Jing Wang2, Ankang Li1, Yibo Lin1, and Wei Wei1
Author Affiliations
  • 1College of Electronic and Optical Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, Jiangsu, China
  • 2Department of Basic Education, Tongda College of Nanjing University of Posts and Telecommunications, Yangzhou 225127, Jiangsu, China
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    Figures & Tables(8)
    Schematic diagram of the structure of LVOF film
    Device for sample preparation. (a) Physical map of the sample stage; (b) physical map of the control unit
    Physical picture of the sample holder in the sample compartment
    Optical constants of TiO2 and SiO2. (a) Refractive index; (b) extinction coefficient
    Simulated spectra. (a) Simulated reflectance spectra of (SiO2/TiO2)3; (b) simulated transmittance spectra of the LVOF
    Measured transmittance spectra. (a) Theoretical simulated spectra and the measured transmission spectra of the as-prepared and annealed samples when the cavity layer thickness is 200 nm; (b) transmission spectra of the F-P resonant cavity device and LVOF with a cavity thickness of 290 nm
    Transmission spectra of the sample. (a) As-prepared; (b) annealed at 200 °C; (c) annealed at 300 °C; (d) annealed at 400 °C
    Resonance peak center wavelength versus sample position. (a) Transmission spectra of samples with different annealing temperatures; (b) transmission spectra of samples with different annealing times; (c) relationship between the resonance peak wavelength of the annealed samples and the position of the samples
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    Kang Ni, Ertao Hu, Min Wang, Jing Wang, Ankang Li, Yibo Lin, Wei Wei. Fabrication, Characterization and Annealing of Linear Variable Optical Filter in Visible Spectral Region[J]. Laser & Optoelectronics Progress, 2022, 59(23): 2323001

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    Paper Information

    Category: Optical Devices

    Received: Oct. 26, 2021

    Accepted: Nov. 8, 2021

    Published Online: Nov. 28, 2022

    The Author Email: Hu Ertao (iamethu@njupt.edu.cn)

    DOI:10.3788/LOP202259.2323001

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