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piao_19850: ½ð±Ò+25, ·ÒëEPI+1, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸ 2016-04-19 17:43:35
piao_19850: ½ð±Ò+25, ·ÒëEPI+1, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸ 2016-04-19 17:43:35
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²âÊÔX¾§Ìå ¿¹¹âÖÂÉ¢ÉäÐÔÄÜ ( optical damage resistance ability)×î¼ò±ãµÄ ·½·¨Îª Ö±½Ó¹Û²ì ͸Éä¹â°ß ±äÐÎ µÄÇé¿ö¡£ÊµÑéÖРͨ¹ýµ÷½Ú Ë¥¼õÆ÷ À´¿ØÖÆ ÕÕÉäµ½ ¾§ÌåÉ쵀 ¼¤¹â¹âÇ¿£¬µ±¼¤¹â¹âÇ¿ ²»×ãÒÔ ÊǾ§Ìå²úÉú É¢ÉäÏÖÏóʱ ͸¹ý ¾§ÌåµÄ ¼¤¹âÔÚÆÁÄ»ÉÏ ÈÔΪ Ô²ÐεĹâ°ß¡£µ±Öð½¥¼Ó´ó ¼¤¹âÆ÷µÄ Êä³ö¹âÇ¿£¬²¢ ÑÓ³¤ ·øÕÕʱ¼äʱ£¬¾§ÌåÄÚ²¿ »á³öÏÖ É¢ÉäÏÖÏ󣬴Ëʱ ÆÁÄ»É쵀 ¹â°ß¿ªÊ¼ ÑØX¾§Ìå cÖá·½Ïò ÀÉ죬Ҳ¾ÍÊÇ Í¸Éä¹âÊø ¹â°ß»û±ä¡£ The simplest way to measure optical damage resistance ability of X crystal is to direct observe transmission facula deformation. In this experiment, intensity of laser irradiated on crystal can be adjusted by attenuator. When the laser intensity is not strong enough to cause scattering phenomenon on crystal, the laser light which penetrated through crystal is still shown as a circle facula on screen. However if we gradually increase output laser intensity and extend irradiation time, scattering phenomenon will occur inside of crystal, in the meantime, the facula on screen begin to extend along c axial direction of X crystal, which is the so called transmission facula deformation. |
3Â¥2016-04-19 10:19:49
4Â¥2016-04-19 10:38:13














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