£ÑÎÐÑÄÞÇ ÃÇÔÔÇÎÇÄÞ ÒÖÚÍË ÅAEÇx kr sin g X 7 µÓÂÄÐÇÐËÇ (6) ÔÒÓÂÄÇAEÎËÄÑ AEÎâ ÒÓËÑÔÇÄÑÌ ÊÑÐÞ r`z sin g, kr 2`z РÖÚÂÔÕÍÇ la sin 2 g 5 z`L A ×ÑÍÂÎß-ÐÑÅÑ ÑÕÓÇÊÍ ÂÍÔËÍÑРL A Aa tan g. ±ÇÓÄÑÇ ÔÎÂÅÂÇÏÑÇ Ô ÕÑÚÐÑÔÕßá AEÑ ÏÂÎÑÌ ÄÇÎËÚËÐÞ ÒÑÓâAEÍ raz sin g ÒÓÇAE-ÔÕÂÄÎâÇÕ ÔÑÃÑÌ ÒÑÎÇ ÐÇÓÂÔØÑAEâÜÇÅÑÔâ ÒÖÚÍÂ Ô ÐÑÓÏÂÎß-ÐÞÏ Í ÑÔË ÄÑÎÐÑÄÞÏ ÄÇÍÕÑÓÑÏ k c k sin g (ÒÓË ËÊ-ÏÇÐÇÐËË ÇÅÑ ÒÓÑAEÑÎßÐÑÌ ÚÂÔÕË dk k 1a2k sin 2 g) Ë ÏÇAEÎÇÐÐÑ ÏÇÐâáÜÇÌÔâ ÂÏÒÎËÕÖAEÑÌ E 0 z 2p sin g z l r E in z sin g exp Ài p 4 X 8 £ÕÑÓÑÇ ÔÎÂÅÂÇÏÑÇ Ä ÒÓÂÄÑÌ ÚÂÔÕË (6) Ô ÂÏÒÎËÕÖAEÑÌÅAEÇ a 3a2d e kl e sin g À2 5 1,  ÖÔÎÑÄËâ (4) ËÏÇáÕ ÄËAE: exY z 0 exp Àix.µÓÂÄÐÇÐËâ (14) . ³ÍÑÓÑÔÕß ÅÂÊ u, ÒÎÑÕÐÑÔÕß r, AEÂÄÎÇÐËÇ p Ë ÕÇÏÒÇÓÂ-ÕÖÓ T Ê ÖAEÂÓÐÑÌ ÄÑÎÐÑÌ, AEÄËÉÖÜÇÌÔâ Ä ÐÇÒÑAEÄËÉÐÑÏ ÅÂÊÇ, ÑÒËÔÞÄÂáÕÔâ ÔÎÇAEÖáÜËÏË ×ÑÓÏÖÎÂÏË: ¯Â ÓËÔÖÐÍÇ 5à ÒÑÍÂÊÂРÔÕÓÖÍÕÖÓ ÓÂÊÓâAEÂ Ä ÂÓÅÑÐÇ ÒÓË ÂÕÏÑÔ×ÇÓÐÑÏ AEÂÄÎÇÐËË AEÎâ ÒÖÚÍ ÅÓÇáÜÇÅÑ ÎÂÊÇÓ-ÐÑÅÑ ËÊÎÖÚÇÐËâ Ô ÕÇÏË ÉÇ ÒÂÓÂÏÇÕÓÂÏË, ÚÕÑ Ë Ä ÔÎÖÚÂÇ ÓËÔ. 5 (t 40 ÐÔ, E 70 ¥É Ë g 7Y5 176. [94,103,104].¯Â ÓËÔÖÐÍÇ 11 ÒÑÍÂÊÂÐÞ ÒÓÑ×ËÎË àÎÇÍÕÓÑÐÐÑÌ ÒÎÑÕÐÑÔÕË n e , ÕÇÏÒÇÓÂ-ÕÖÓÞ T e Ë ÔÍÑÓÑÔÕË ËÑÐËÊÂÙËË n 2 ST e AEÎâ ÕÓÈØ ÏÑÏÇÐÕÑÄ ÓÂÊÄËÕËâ ÍÂÐÂÎÂ: t 88, 138 Ë 188 ÒÔ. ©AEÇÔß S i S i T e n i an, ÅAEÇ S i T e nn i ì ÔÍÑÓÑÔÕß ÔÕÑÎÍÐÑÄË-ÕÇÎßÐÑÌ ËÑÐËÊÂÙËË i-ÍÓÂÕÐÑ ËÑÐËÊÑÄÂÐÐÑÅÑ ËÑÐÂ,T e aU i p exp ÀU i aT e aU ¿ÎÇÍÕÓÑÐÐÂâ ÒÎÑÕÐÑÔÕß ÒÓÇAEÔÕÂÄÎâÇÕ ÔÑÃÑÌ ÔÖÏÏÖ ÑÔÐÑÄÐÑÌ ÔËÏÏÇÕÓËÚÐÑÌ ÚÂÔÕË Ë ÔÄâÊÂÐÐÑÅÑ Ô ÏÑAEÖÎâ-ÙËÇÌ ÏÂÎÑÅÑ ÄÑÊÏÖÜÇÐËâ:n e rY t n 0 r Re, n ì ÚÂÔÕÑÕ àÎÇÍÕÓÑÐ-ËÑÐÐÞØ ÔÕÑÎÍÐÑÄÇÐËÌ, r e ì ÍÎÂÔÔË-ÚÇÔÍËÌ ÓÂAEËÖÔ àÎÇÍÕÓÑÐÂ. ±ÓÑ×ËÎß ÒÎÑÕÐÑÔÕË àÎÇÍÕÓÑ-ÐÑÄ n 0 r ÑÒÓÇAEÇÎâÇÕÔâ Ô ÖÚÈÕÑÏ ËÑÐËÊÂÙËË, AEÉÑÖÎÇÄ ÐÂÅÓÇÄÂ Ë ÕÇÒÎÑÒÓÑÄÑAEÐÑÔÕË. ¢ËÇÐËâ ÒÑÎâ ÂÍÔËÍÑÐÂ Ë ÏÑAEÖÎâÙËâ ÒÎÑÕÐÑÔÕË ÔÕËÏÖÎËÓÖáÕ ÑÃÓÂÊÑÄÂÐËÇ ÓÂÔ-ÔÇâÐÐÑÌ ÄÑÎÐÞ Ô ÒÑÎâÓËÊÂÙËÇÌ ÒÂAEÂáÜÇÌ ÄÑÎÐÞ:¬ÑÏÒÎÇÍÔÐÂâ ÂÏÒÎËÕÖAE ÄÑÊÏÖÜÇÐËâ àÎÇÍÕÓÑÐÐÑÌ ÒÎÑÕÐÑÔÕË, ÍÂÍ Ë AEÓÖÅËØ ÒÂÓÂÏÇÕÓÑÄ, ÒÓÇAEÔÕÂÄÎâÇÕÔâ Ä ÄËAEÇñ n exp bt, ÒÎÂÊÏ ÓÂÔÔÏÂÕÓËÄÂÇÕÔâ ÍÂÍ ËAEÇ-ÂÎßÐÞÌ ÅÂÊ:µÓÂÄÐÇÐËÇ (66) The propagation features of laser radiation are discussed for the case of axiconic focusing. Issues explored include the nature of gas breakdown in the éeld of a Bessel laser beam, the gas-dynamic expansion of the breakdown plasma, and how optical discharges and plasma channels are structured.
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