Abstract
The single-pass (50 cm) amplifier performance of an atmospheric-pressure ArF laser pumped by a 65-ns full-width-at-half-maximum short-pulse electron beam was investigated theoretically for a wide range of excitation rates (0.1-2.0 MW/cm3). Atmospheric mixtures of Ne, Ar, and F2 (three mixtures of Ar = 40%, 70%, and Ne-free) were studied. A kinetic numerical model of the ArF amplifier with a Ne buffer system was constructed. A one-dimensional propagation treatment considered the gain depletion and saturation absorption spatially and temporally along the optical axis. In this model the rate constants for electron quenching of ArF* of 1.6 × 10-7, 1.9 × 10-7, and 2.4 × 10-7 cm3/s were used for Ar concentrations of 40%, 70%, and Ar/F2 mixture, respectively. With this amplifier model analysis, good agreement was obtained between theory and experiment. For the three mixtures, the extracted intensity was calculated using the optimum input intensities at each excitation rate. As a result, power efficiencies of over 10% were predicted at excitation rates ranging from 0.5 to 2.0 MW/cm3.
| Original language | English |
|---|---|
| Pages (from-to) | 2053-2066 |
| Number of pages | 14 |
| Journal | IEEE Journal of Quantum Electronics |
| Volume | 25 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - 1989 Sep |
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ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Physics and Astronomy (miscellaneous)
Cite this
Theoretical high-efficiency extraction study of a short-pulse electron-beam-pumped ArF laser amplifier with atmospheric pressure Ar-rich mixtures. / Lee, Young Woo; Matsui, Eiichi; Kannari, Fumihiko; Obara, Minoru.
In: IEEE Journal of Quantum Electronics, Vol. 25, No. 9, 09.1989, p. 2053-2066.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Theoretical high-efficiency extraction study of a short-pulse electron-beam-pumped ArF laser amplifier with atmospheric pressure Ar-rich mixtures
AU - Lee, Young Woo
AU - Matsui, Eiichi
AU - Kannari, Fumihiko
AU - Obara, Minoru
PY - 1989/9
Y1 - 1989/9
N2 - The single-pass (50 cm) amplifier performance of an atmospheric-pressure ArF laser pumped by a 65-ns full-width-at-half-maximum short-pulse electron beam was investigated theoretically for a wide range of excitation rates (0.1-2.0 MW/cm3). Atmospheric mixtures of Ne, Ar, and F2 (three mixtures of Ar = 40%, 70%, and Ne-free) were studied. A kinetic numerical model of the ArF amplifier with a Ne buffer system was constructed. A one-dimensional propagation treatment considered the gain depletion and saturation absorption spatially and temporally along the optical axis. In this model the rate constants for electron quenching of ArF* of 1.6 × 10-7, 1.9 × 10-7, and 2.4 × 10-7 cm3/s were used for Ar concentrations of 40%, 70%, and Ar/F2 mixture, respectively. With this amplifier model analysis, good agreement was obtained between theory and experiment. For the three mixtures, the extracted intensity was calculated using the optimum input intensities at each excitation rate. As a result, power efficiencies of over 10% were predicted at excitation rates ranging from 0.5 to 2.0 MW/cm3.
AB - The single-pass (50 cm) amplifier performance of an atmospheric-pressure ArF laser pumped by a 65-ns full-width-at-half-maximum short-pulse electron beam was investigated theoretically for a wide range of excitation rates (0.1-2.0 MW/cm3). Atmospheric mixtures of Ne, Ar, and F2 (three mixtures of Ar = 40%, 70%, and Ne-free) were studied. A kinetic numerical model of the ArF amplifier with a Ne buffer system was constructed. A one-dimensional propagation treatment considered the gain depletion and saturation absorption spatially and temporally along the optical axis. In this model the rate constants for electron quenching of ArF* of 1.6 × 10-7, 1.9 × 10-7, and 2.4 × 10-7 cm3/s were used for Ar concentrations of 40%, 70%, and Ar/F2 mixture, respectively. With this amplifier model analysis, good agreement was obtained between theory and experiment. For the three mixtures, the extracted intensity was calculated using the optimum input intensities at each excitation rate. As a result, power efficiencies of over 10% were predicted at excitation rates ranging from 0.5 to 2.0 MW/cm3.
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U2 - 10.1109/3.35232
DO - 10.1109/3.35232
M3 - Article
VL - 25
SP - 2053
EP - 2066
JO - IEEE Journal of Quantum Electronics
JF - IEEE Journal of Quantum Electronics
SN - 0018-9197
IS - 9
ER -