搜索优化
English
全部
Copilot
图片
视频
地图
资讯
购物
更多
航班
旅游
酒店
搜索
笔记本
Top stories
Sports
U.S.
Local
World
Science
Technology
Entertainment
Business
More
Politics
时间不限
过去 1 小时
过去 24 小时
过去 7 天
过去 30 天
按时间排序
按相关度排序
仪表网
19 天
上海光机所在高能量深紫外激光研究方面取得进展
基于1μm波长激光的五次谐波是获得200 nm深紫外激光的重要途径之一。由于KBBF、BBO、CLBO等晶体难以获得大尺寸,极大地限制了深紫外激光能量的提升。具有大尺寸生长特性的KDP族晶体是获得高能深紫外激光的理想材料,但由于相位匹配限制,传统方案KDP族晶体需 ...
一些您可能无法访问的结果已被隐去。
显示无法访问的结果
今日热点
Trump addresses Congress
Retaliate against US tariffs
Says he may run for pres
NK leader's sister warns US
Space Ghost voice actor dies
Judge reinstates fired chair
Kids sickened by marijuana
Conviction under DOJ review
May help trigger quakes?
Intentionally set on fire?
Trump clash 'regrettable'
‘Colossal woolly mouse’
Winter storm warning
Day care owner sentenced
Probation officers charged
Panama Canal ports deal
Trailblazing lawmaker dies
4 men federally charged
Texas measles cases rise
Chappy the baby seal dies
Recall over faulty LED lights
Tops list of biggest donors
Launches new iPad Air
CFPB drops 'Zelle' case
Limits water discharge rules
Austin robotaxi launch
Probe into case closed?
Prepare to return
Obesity rates rise globally
Largest iceberg runs aground
Wins 2025 Pritzker Prize
反馈