| Autor: |
S.-J. Park, C. M. Herring, A. E. Mironov, J. H. Cho, J. G. Eden |
| Jazyk: |
angličtina |
| Rok vydání: |
2017 |
| Předmět: |
|
| Zdroj: |
APL Photonics, Vol 2, Iss 4, Pp 041302-041302-7 (2017) |
| Druh dokumentu: |
article |
| ISSN: |
2378-0967 |
| DOI: |
10.1063/1.4976530 |
| Popis: |
More than 25 W of average power and >800 W of peak power have been generated at λ=172 nm (hν=7.2 eV) in the vacuum ultraviolet (VUV) from the Xe2 molecule in flat, 10 × 10 cm2 lamps having an active area and volume of 80 cm2 and 20%. For a bipolar voltage waveform driving frequency of 137 kHz and a 54% Xe/Ne gas fill mixture at a 300 K pressure of 550 Torr, the lamp generates as much as 31.5 W of average power and intensities >350 mW cm−2 in 40–60 μJ, 70±10 ns FWHM pulses produced in a burst mode−four pulses of 600–850 W peak power in every cycle of the driving waveform. The lamp intensity is uniform to within ±2.5% at ≥10 mm from its surface and average power varies linearly with pulse repetition frequency throughout the 18−135 kHz interval. The spectral breadth of the Xe dimer emission is ∼9 nm FWHM and time-resolved, spatial intensity maps show improved utilization of the power pulse (V⋅I) with two or more microcavity arrays that are interleaved. This photonic source technology is capable of generating unprecedented power levels in the VUV spectral region (e.g., ∼2.5 kW m−2) with tiled lamps. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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