Mr. Liang Ren Profile

Liang Ren

SPIE Involvement:

Author

Publications (1)

This will count as one of your downloads.

You will have access to both the presentation and article (if available).

DOWNLOAD NOW

This content is available for download via your institution's subscription. To access this item, please sign in to your personal account.

Email or Username Forgot your username?

Password Forgot your password?

Show

Keep me signed in

No SPIE account? Create an account

Proceedings Article | 4 December 2024 Paper

Research on surface plasma characteristics of CaF2 and MgF2 windows induced by laser

Liang Ren, Liang Shi, Xinyan Yang, Xi Wang

Proceedings Volume 13283, 132830O (2024) https://doi.org/10.1117/12.3033898

KEYWORDS: Plasma, Signal intensity, Windows, Calcium, Laser radiation, Chemical species, Temperature metrology, Magnesium, Ions, Spectral density

Read Abstract +

Fluoride optical windows with low refractive index and good transparency have been widely used in photoelectric systems, laser systems and optical protective windows. The temperature and the electron number density of surface plasma of fluoride windows induced by 355 nm laser was calculated. The Saha-Boltzmann plot method was used for the calculation of the temperature of plasma. The approximate linear relationship between the electron number density and the Stark broadening of independent spectral lines was used for the calculation of the electron number density. The polynomial function was used to fit the background radiation intensity to solve the peak intensity and the signal-to-background radiation ratio of the emission spectrum. The effect of different laser fluence on the temperature of plasma and electron number density was analyzed. The temperature of plasma of CaF₂ and MgF₂ reached about 5178 K and 7230 K and the electron number density of CaF₂ and MgF₂ reached 6.052 x 10¹⁷ cm^-3 and 5.127 x 10¹⁶ cm^-3 at a laser fluence of 98.2 J/cm² . The signal-to-background radiation intensity ratio of the calcium atom emission spectrum of plasma of CaF₂ induced by 355 nm laser was between 0.2 and 0.5, while the calcium ion emission spectrum after one ionization showed a ratio of approximately 1.19.

My Library

You currently do not have any folders to save your paper to! Create a new folder below.

Folder Name

Folder Description

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks. You are receiving this notice because your organization may not have SPIE eBooks access.*

*Shibboleth/Open Athens users─please sign in to access your institution's subscriptions.

To obtain this item, you may purchase the complete book in print or electronic format on SPIE.org.

ORGANIZATIONAL
Sign in with credentials provided by your organization.

Organizational Username

Organizational Password

Show/Hide Password

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members:

Non-members: ADD TO CART

Keywords/Phrases

Search In:

Publication Years