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小料科普 | 多彩的人工晶体系列——非线性光学晶体

来源:中材高新  发布时间:2020-08-10

一支普通的激光笔,内部的激光器原本发出的是人眼看不见的红外线,但在穿过前端的一块米粒大小的晶体之后,立刻就变成了鲜艳的绿色!这个能改变激光颜色的神奇小东西,就是今天要介绍的非线性光学晶体。

什么是非线性光学晶体

    说起非线性光学晶体,就离不开激光,人们就会想起好莱坞的科幻电影《星球大战》中的激光剑。

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《星球大战》电影中的激光武器剧照  

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第一台红宝石激光器(左)和非线性光学首次试验(右)    

1960 nian,shijieshangdiyitaihongbaoshi(cr3+:al2o3)jiguangqidansheng。1961nian,frankendengshoucifaxianjiguangtongguoshiyingjingtishihuichanshengbeipinxianxiang,suihoukexuejiamenyouluxufaxianjiguangzaitongguomouxietedingjingtishihuichanshengbeipin、hepin、chapin、hunpinyuguangcanliangzhendangdengguangxuebianpinxianxiang,zheixiejingtibeichengweifeixianxingguangxuejingti。

feixianxingguangxuejingtidebianpin,jiandandishuojiushigaibianjiguangbozhang、qizhongzuichangyongdebianpinshishishuchujiguangdepinlvshishurujiguangdebeishuguanxi。gaibianjiguangdebozhang,duihuohutiyurendeyanjinglaishuo,jiushigaibianlejiguangdeyanse。

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非线性光学晶体激光变频过程示意图

非线性光学晶体的应用

feixianxingguangxuejingtishizhongyaodeguangdianxinxigongnengcailiaozhiyi,zhongleiduodabaizhong,qifazhanchengduyujiguangjishudefazhanmiqiexiangguan。jiguangguangyuandebozhangtuozhanhendachengdushangyilaiyufeixianxingguangxuejingtidebianpinnengli,shihuodebutongboduan(butongyanse)jiguangdewuzhijichuheyuantou,zaijiguangcunchu、jiguangtongxin、jiguangyiliao、bandaotiweijiagong、guangtongxun、jiguangjiagong、quanxisheying、jiguanghejubian、jiguangwuqidenglingyuyingyongguangfan。

feixianxingguangxuejingtideyingyongshi“shangdeletingtang,xiadelechufang”,yijingchengweirenleixiandaishenghuodezhongyaozuchengbufen,jingyanxuankudewutaijiguang、wucaiduomudejiguangyinlepenquan、jiangzuohezuobaogaoyongdelvguangjiguangzhishibi......wuchubuzai。

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绿光激光指示笔(左)   激光舞台表演(右)

feixianxingguangxuejingtigengshigaoxinjishuhexiandaijunshijishuzhongbukequeshaodeguanjiancailiao。jiguangwuqi、shenguanggongchenghemeiguoguojiadianhuozhuangzhidenggaojingjianzhuangbeizhong,douyoufeixianxingguangxuejingtideshenying。youqishizaishoukonghejubianzhongdeyingyong,kdp(linsuanerqingjia)leijingtichengweimuqianweiyikeyongyuguanxingyueshuhejubiandefeixianxingguangxuejingti,beilikeqiangzonglichengwei“guojiadebaobei”。tongshifeixianxingguangxuejingtiye“shangtianrudi”,rtp(linsuanyangtairu)dianguangjingtiyuqijianzuoweiguanjianhexinyuanqijianzaimeiguo“haoqi”haohuoxingtancecheyijiligoyinlibotancexitongzhonghuodeyingyong。

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KDP晶体(左)神光工程靶室(中)美国国家点火装置(右)

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火星探测车(左)    LIGO引力波探测系统(右)

人工晶体院非线性光学晶体

火狐体育huohutiyusuoshuzhongcairengongjingtiyanjiuyuancongshangshiji80niandaichukaishicongshijiguangyufeixianxingguangxuejingtideyanzhi,shiguoneizuizaoyanfadedanweizhiyi,zailaoyibeikexuejiazhongguogongchengyuanyuanshishendezhongjiaoshou、guojiajizhuanjiahuangchaoenjiaoshoudedailingxia,kn(nisuanjia)、lbo(sanpengsuanli)、ktp(linsuanyangtaijia)feixianxingguangxuejingtiqudelejuyouguojilingxianshuipingdekaituoxingchengguo,weiwoguozaishijierengongjingtilingyuzhanyouyixizhidizuochulegongxian。qizhong,“nisuanjiajingtideyanzhi”huo1988nianguojiakejijinbuyidengjiang;“dachicungaozhiliangfeixianxingguangxuejingtisanpengsuanli(lbo)deshengzhangjishu”1991nianhuohuoguojiakejijinbuyidengjiang;“dingbuzijingrongjifashengzhangktpjingtijishu”huo2001niandubangkejichuangxinjiang;“dachicunxinxingdianguangjingtiktpdezhibeijishu”huo2002nianguojiakejijinbuerdengjiang。

火狐体育shendezhongyuanshixianhoushengzhangchukn、ktpdengshiduozhongjingti,chenggongdijiejueknjingtishengzhangguochengzhongdefuse、kailieyijijingtiyingyongguochengzhongdedingxiang、jihuadengyixilienanti,shoucizaichantiekndanjingshangshixianleshiwenzibengpuxiangweigonge。ktpjingtiyoushanggeshiji70niandaimeiguodubanggongsiyanfa,meiguozhengfubaktpjingtizuoweigaodubaomidegaokejichanpin,yikuai3×3×5mm3dektpjingtibeipinqishoujia2750meiyuan,erqieduiwoguoshixingyangedejishufengsuohejinyun。weijizhongguorenzhengqi,dapojinyun,shouciyonggaijindezhurongjifayanzhichenggongkeyongyushijibeipindedachicun、gaoguangxuezhiliangktpdanjing,budandapolemeiguoduigaijingtidelongduanheduiwoguodejinyun,houjingyuanguojiakeweitongyixiangmeiguodubanggongsichushoudazqiemiandektpjingpian,weici1988niandubanggongsizizhu9wanmeiyuankaizhanjinyibuyanjiu,budanzhuanquleshubaiwanmeiyuandewaihui,erqiejidaditigaolewoguozaiguojijingtishengzhangjiedeshengyu。

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jingtiyuanchengdanlebaokuoguojiazirankexuejijinzhongdianxiangmu、guojiagaojishuchanyehuaxiangmu、zhongguancunyuanquchanyefazhanzhuanxiangzijinxiangmu、beijingshikejijihuadengyidapizhongyaoyanjiuketitigongleguanjiandefeixianxingjingtiqijian。

火狐体育“xiongguanmandaozhenrutie,erjinmaibucongtouyue”。jinruxinshidai,jingtiyuanfeixianxingguangxuejingtiyuqijianyimianxiangjiguangjishu、liangzixinxikexuedenglingyuguojiazhongdazhanlvehefuwugaokejifazhanxuqiuyingyongweizhuxian,chaodachicunclbo(pengsuanseli)jingtishengzhangyuqijianyanzhishuipingguojilingxian,yinlingfazhan,weiguojiazhongdagongcheng“shenguanggongcheng”tigongqijianzhicheng。rtp(linsuanyangtairu)dianguangjingtiyuqijianshixianwurenji、zhishengjidengjiguangcejuxitongyingyong “jinkoutidai“,bingtuijingongchenghua、guimohua,gaibianliangzixinxiguangxueyonggaoliangdujiuchanguangyuanyongppktp(zhouqijihualinsuanyangtaijia)jingtiquanbuyilaijinkou,shouzhiyurendejumian,baochihefazhanfeixianxingguangxuejingtiyuqijianzaiguoneiwaizhimingduheyingxiangli。

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