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DTIC ADA210613: Multiline Multimode CW Chemical Laser Performance |
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by Defense Technical Information Center |
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Effects of translational rotational nonequilibrium large |
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scale cw chemical laser performance are evaluated for the |
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case of a Fabry-Perot resonator with multiple |
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longitudinal modes. Numerical results are presented for |
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the limit Delta nu Sub c Delta nu sub h Delta nu sub d, |
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where Delta nu sub c, Delta nu sub h, and Delta nu sub d |
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denote longitudinal mode separation, homogeneous width, |
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and Doppler width, respectively. Results include the |
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effect of threshold gain on the power in each |
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longitudinal mode, the power associated with each |
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rotational energy level, and the net laser power. In the |
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case of a saturated laser, an increase of threshold gain |
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results in an increase in the output from strong |
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rotational transitions at the expense of the output from |
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weak rotational transitions. Total output is reduced. |
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With further increase of threshold gain, the output from |
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all rotational transitions is reduced. The case of |
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rotational nonequilibrium and translational equilibrium |
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is also considered. The latter case, a common assumption, |
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is shown to provide net output power that is intermediate |
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between the values for rotational and translational |
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equilibrium and for rotational and translational |
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nonequilibrium. Keywords: Chemical laser; Multiline |
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laser; Multimode laser; Nonequilibrium Effects; |
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Theoretical performance; Continuous wave Lasers. |
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Date Published: 2018-02-22 21:24:47 |
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Identifier: DTIC_ADA210613 |
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Item Size: 16365740 |
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Language: english |
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Media Type: texts |
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# Topics |
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DTIC Archive; Mirels, Harold; AEROSPA... |
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