Time-Synchronized Microwave Cavity Resonance Spectroscopy and Laser Light Extinction Measurements as a Diagnostic for Dust Particle Size and Dust Density in a Low-Pressure Radio-Frequency Driven Nanodusty Plasma

Round 1

Reviewer 1 Report

I have read the manuscript number: applsci-2012547 with title:"

Time-synchronized Microwave Cavity Resonance Spectroscopy and

Laser Light Extinction measurements as a diagnostic for dust particle size and dust density in a low-pressure radio-frequency driven nanodusty plasma", and I found that, authors have been introducing a method for the determination of size and density for the dust from the measurement of the free electron density using microwave cavity resonance spectroscopy and laser light extinction measurements.                   

I would like the authors consider the following points before I recommend publication

1-Can author determine the charge of dust? Is there a charge fluctuation?

2-In equation (4), authors putting the dust charge negative, why?

3-The presentation and grammar need improvement. 

Author Response

The responses to the comments of Reviewer 1 are shown on pages 2-3 in the attached document.

Author Response File: Author Response.pdf

Reviewer 2 Report

I have read through the paper "Time-synchronized microwave cavity resonance spectroscopy and laser light extinction measurements as a diagnostic for dust particle size and dust density in a low-pressure radio-frequency driven nanodusty plasma" by T. Donders et. al,. The paper deals with the new experimental method of measuring dust size and dust density by combination of the spectroscopy and laser extinction measurements.

 

The paper is clearly written, and the work is novel, and important in the plasma research community. Therefore, I recommend its publication in Applied Science in the current form.

 

The information of dust particle size and its density has critical importance for the understanding of dusty plasmas, which is widely observed in plasmas such as astrophysical phenomena, process plasmas, and so on. The authors developed an original method of measuring dust size and density via spectroscopy and the laser extinction measurements as well, which seems to very nice idea since it is simple and leads to an intrusive measurement. In this paper, they showed a detailed analysis on the data processing needed in their new experimental method. Their method is expected to add a new experimental approach for understating the dust plasmas, and the subsequent data analysis method is needed and important for the readers in this community. then I recommend its publication.

 

Author Response

The responses to the comments of Reviewer 2 are shown on page 4 in the attached document.

Author Response File: Author Response.pdf