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中国科学院金属研究所专利：一种利用微波法制备Y4Si2O7N2粉体材料的方法
冰盖的变化是全球变化的关键要素。冰盖内部温度和密度廓线指的是冰盖内部温度和密度的垂直分布特征，是影响冰盖内部动力和热力过程的主要因素，同时也是冰盖物质平衡与演化等科学问题的重要输入参数。现有的冰芯和钻孔等现场测量方式不能够提供冰盖空间分布观测信息，卫星遥感手段主要用于获取冰盖覆盖范围和表面状态信息。
近日，东南大学赵涤燹教授课题组采用级联双推式倍频器和基于变压器的滤波器设计实现了高输出功率及高谐波抑制的E波段四倍频器。他们在该工作中分析了双推式及Cascode-双推式倍频器中晶体管漏极电流的谐波分量，通过调节晶体管尺寸及工作状态获得高转换增益且低功耗的四倍频器。同时，使用低耦合系数变压器进行级间匹配保证四倍频器工作带宽，实现四次谐波1.5 dB带宽大于6 GHz。此外，在输出级用变压器构造二极...
中国科学技术大学物理学院郭光灿院士团队在多频率微波传感上取得新进展。该团队史保森、丁冬生课题组利用人工智能的方法实现了基于里德堡原子多频率微波的精密探测，相关成果4月14日以“Deep learning enhanced Rydberg multifrequency microwave recognition”为题发表在国际知名学术期刊《Nature communications》上。
1964年诺贝尔物理得奖主Aleksandr Mikhailovich Prokhorov（图）
quantum electronics oscillators the maser-laser principle
2009/8/24
The Nobel Prize in Physics 1964, Aleksandr Mikhailovich Prokhorov, for fundamental work in the field of quantum electronics, which has led to the construction of oscillators and amplifiers based on th...
1964年诺贝尔物理得奖主Nicolay Gennadiyevich Basov（图）
quantum electronics oscillators the maser-laser principle
2009/8/24
The Nobel Prize in Physics 1964, Nicolay Gennadiyevich Basov, for fundamental work in the field of quantum electronics, which has led to the construction of oscillators and amplifiers based on the mas...
1964年诺贝尔物理得奖主Charles Hard Townes（图）
quantum electronics oscillators the maser-laser principle
2009/8/24
The Nobel Prize in Physics 1964, Charles Hard Townes, for fundamental work in the field of quantum electronics, which has led to the construction of oscillators and amplifiers based on the maser-laser...
The Nobel Prize in Physics 1978, Robert Woodrow Wilson, for the discovery of cosmic microwave background radiation.
The Nobel Prize in Physics 1978, Arno Allan Penzias, for the discovery of cosmic microwave background radiation.
The Nobel Prize in Physics 2006, George F. Smoot, for the discovery of the blackbody form and anisotropy of the cosmic microwave background radiation.
The Nobel Prize in Physics 2006, John C. Mather, for the discovery of the blackbody form and anisotropy of the cosmic microwave background radiation.