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  • Hanxi Liu1,
  • Pingmei Wang2,3 and
  • Qianyang Fan1
  • et al.

Reviewer 1: Anonymous Reviewer 2: Anonymous Reviewer 3: Anonymous

Round 1

Reviewer 1 Report

  1. In this paper, λ/4-λ/4 double-layer antireflective (AR) coatings with constant high transmittance in a pre-determined wavelength range was proposed and prepared by sol-gel method via acid-catalyzed and base-catalyzed SiO2 thin films. A double-layer antireflective coating with an almost constant transmittance value of 99.8% in the range of 550–700 nm was obtained, and the transmittance of this coating was higher than 99% in a wide range of 450–850 nm with fluctuation less than 1%.
  2. In the figure 6, AFM 3D images of bottom layer coating should be demonstrated in detail.
  3. The manuscript has 10 pages; the length of the manuscript should be increased.

    4.Please revise and enhance the English writing to increase readability.

 

Author Response

Please see the attachment.

Author Response File: Author Response.pdf

Reviewer 2 Report

The authors reported the manuscript entitled "λ/4-λ/4 Double-layer Broadband Antireflective Coatings with Constant High Transmittance" nicely and in a well-organized way. Paper may be accepted after minor revision.

  1. Include the novelty and objectives of the study in the manuscript clearly.
  2. Include the name of manufacturers and country of chemicals used.
  3. Why the ratio of TEOS and MTES has no effect on the refractive indexes of mentioned films before calcination?
  4. Why the transmittances of the prepared double-layer broadband ARC were significantly enhanced as compared to that of bare glass?

Author Response

Please see the attachment.

Author Response File: Author Response.pdf

Reviewer 3 Report

  • At section 2.1, specify the concentration for TEOS, MTES and HCl.
  • At section 2.2, specify the concentration of NH3H2O
  • At 2.3, specify how the surfaces (BK-7 glass) were washed before use.
  • Schematic representation of the sol-gel method to obtain the materials must be add.
  • Specify the advantage of dip-coating method
  • Macroscale images of the coating would be convenient.

Author Response

Please see the attachment.

Author Response File: Author Response.pdf

Round 2

Reviewer 3 Report

Dear Sirs,

The manuscript was improved and can be publish in this form.

Author Response

Thanks for your appreciation.