Longitudinally excited F2 laser and gain measurement at a total gas pressure of 40 Torr

M. A.M. El-Osealy; Takuya Ido; Kenshi Nakamura; Takahisa Jitsuno; T. Goto

doi:10.1117/12.460154

26 March 2002 Longitudinally excited F₂ laser and gain measurement at a total gas pressure of 40 Torr

M. A.M. El-Osealy, Takuya Ido, Kenshi Nakamura, Takahisa Jitsuno, T. Goto

Proceedings Volume 4747, International Conference on Atomic and Molecular Pulsed Lasers IV; (2002) https://doi.org/10.1117/12.460154
Event: International Conference on Atomic and Molecular Pulsed Lasers IV, 2001, Tomsk, Russian Federation

Abstract

A new scheme of longitudinally excited gas lasers has been developed. This provides compact and stable gas lasers of CO₂, N₂, KrF, and F₂. The laser oscillation and the gain measurement are examined here in N₂ and F₂ lasers. The discharge tube consists of a ceramic pipe of 15 cm in length and 5 mm in inner diameter, which is driven by a conventional capacitor transfer circuit, with the pre- ionization by a specially designed corona electrode. In the F₂ lasers at a charging voltage of 20 kV and an excitation density of 2.3 MW/cm³, the output energy of 140 (mu) J/pulse with 18 ns duration was obtained at a very low total gas pressure of 40 Torr (5.3 kPa) with a F₂ concentration of 1.5%. On the other hand at the same charging voltage and an excitation density of 1.5 MW/cm³, the output energy was 100 (mu) J/pulse with 16 ns duration at a high total gas pressure of 1 atm (101 kPa) with a F₂ concentration of 0.2%. The maximum gain coefficients was around 13.5%/cm, and 11%/cm by the time resolved gain measurement for the low and the high total pressure operations, respectively.

Citation Download Citation

M. A.M. El-Osealy, Takuya Ido, Kenshi Nakamura, Takahisa Jitsuno, and T. Goto "Longitudinally excited F₂ laser and gain measurement at a total gas pressure of 40 Torr", Proc. SPIE 4747, International Conference on Atomic and Molecular Pulsed Lasers IV, (26 March 2002); https://doi.org/10.1117/12.460154

ACCESS THE FULL ARTICLE

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: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
11 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Pulsed laser operation

Optical amplifiers

Oscillators

Absorption

Gas lasers

Capacitors

Molecular lasers

Show All Keywords

Keywords/Phrases

Search In:

Publication Years