Review Reports

Round 1

Reviewer 1 Report

This work entitled “Hydroxyl Spectroscopy of Laboratory Air Laser-Ignition” is an important attempt  to study correlation of spatial and temporal resolved OH emission spectra and of  shadow graphs. This work is well presented in the manuscript and might be considered for publication.

Author Response

Please see attached file ResponseRev1. docx

Author Response File: Author Response.docx

Reviewer 2 Report

Recommendation

 

Hydroxyl Spectroscopy of Laboratory Air Laser-Ignition.

 

This work investigates spatial and temporal distributions of hydroxyl, OH, in laser-plasma in laboratory air at standard ambient temperature and pressure 

This paper presented the setup to obtain the measurements of the OH spectra in plasma, and the same time capture the shadowgraphs. 

The paper has value and may serve the broad public as well to specialists. However, in order to maintain good results from reading this article, it is worth improving it in several aspects, which I thought it was worth paying attention to before publication:

1. In the experimental setup section, please add information about the mechanism of synchronization between the shadowgraph camera and the spectrometer.

2. Please add information about the spatial resolution of the optical setup.

3. Please explain in figures 5, 6, and 7, in grayscale, what represents dark tones, and what represents bright tones of shadowgraphs.

4. Please add in the description under figures 8, 9, and 10, what values are depicted on the false color bar? Does it represent the flame temperatures? 

5. Please explain the reason for saturation of the OH density vs. temperature curve at around 3200K.

 

The paper is written in a very entertaining manner, includes 17 pictures and 1 table, cites 30 interrelated sources, and merits publication after a minor correction

 

Author Response

Thank you for your comments, the edits are highlighted in purple. Attached is the document ResponseRev2.docx

 

Author Response File: Author Response.docx

Reviewer 3 Report

Comments for author File: Comments.pdf

Author Response

Please see attached file ResponseRev3.docx and the highlighted edits in green.

Respectfully,

Author Response File: Author Response.docx