forbidden energy 中文意思是什麼
forbidden energy
解釋
禁能-
Abstract : we have studied theoretically a beat effect in a four - level system due to fifth - order optical polarization, and considered the cases that the pump beams have either narrowband or broadband linewidth. we have found that the accuracy for the energy - level splitting measurement is determined by the homogeneous linewidths of the optical transitions. that is to say, this technique can achieve doppler - free precision in the measurement of the energy level splitting between two excited states which are dipolar forbidden from the ground state
文摘:研究了四能級系統中基於五階極化的拍頻效應，考慮了抽運光束為窄帶線寬或寬帶線寬的情形.發現其對能級分裂的測量精度決定於光學躍遷的均勻增寬.也就是說，這種技術在測量與基態是偶極禁戒躍遷的兩激發態之間的能級分裂時，可得到消除多普勒增寬的精度 -
For n - doped tio _ ( 2 ), the forbidden band was divided into two ' s, and the cut - off wavelength and the application of solar energy was increased too
對于n摻雜tio _ 2薄膜來說，禁帶寬度裂分為兩個「表觀」禁帶寬度，大大提高了截止波長，提高了對光源的利用率。 -
It is forbidden for any unit or individual to endanger the safety of electric power facilities or to illegally occupy or utilize electric energy
禁止任何單位和個人危害電力設施安全或者非法侵佔、使用電能。 -
With the introduction of the dopants, the effective mass of carriers was changed and the seebeck coefficient was increased. at the mean time, the dopants reduced the forbidden energy gap, which changed the carrier concentration and thus increased electrical conductivity. by calculating the forbidden energy gap and electrical conductivity of mg2si specimen doped with different amount sb, the mechanism of transference changed abruptly at 625k
在mg _ 2si熱電材料基體中摻雜te 、 sb元素后，在結構中引入了缺陷，增大了體武漢理工大學博士學位論文系中載流子有效質量，提高了seebeck系數;降低了體系導電活化能，提高了電導率，同時也降低了熱導率。 -
Periodic dielectric structure. they can create a range of forbidden frequencies called photonic bandgap. photons with energy lying in the gap cannot propagate through the medium
它是介質顆粒周期排列而成的人工材料，能夠產生光子帶隙，頻率落在帶隙內的光在晶體里沿任何方向都不能傳播。
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