Volume 5 Issue 3
Jun.  2012
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YANG Dao-qi, FU Xiu-hua, GENG Si-yu, YANG Yong-liang, PAN Yong-gang. Design and fabrication of 0.6-1.55 μm visible/near infrared ultra-broad band antireflection coatings[J]. Chinese Optics, 2012, 5(3): 270-276. doi: 10.3788/CO.20120503.0270
Citation: YANG Dao-qi, FU Xiu-hua, GENG Si-yu, YANG Yong-liang, PAN Yong-gang. Design and fabrication of 0.6-1.55 μm visible/near infrared ultra-broad band antireflection coatings[J]. Chinese Optics, 2012, 5(3): 270-276. doi: 10.3788/CO.20120503.0270

Design and fabrication of 0.6-1.55 μm visible/near infrared ultra-broad band antireflection coatings

  • Received Date: 21 Jan 2012
  • Rev Recd Date: 23 Mar 2012
  • Publish Date: 10 Jun 2012
  • As for the operating requirements of spectrometer detector windows operating from visible to the infrared spectrum, the TiO2, M1 and SiO2 were chosen as coating materials with different refractive indexes and were designed into film stacks by various schemes. By using electron beam evaporation with ion beam assist deposition, the visible/near infrared ultra-broad band antireflective coatings with excellent optical properties, good repetition and firmness were prepared by parameter adjustment. The average transmittances of these coatings are better than 99% at (650?10) nm, 900-1 100 nm and (1 470?10) nm, and better than 97% in 620-1 550 nm as a whole. It meets the actual requirements of the spectrometer detector windows well.

     

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