photon beam 中文意思是什麼

photon beam 解釋
光子束
  • photon : n. 1. 【物理學】光子。2. 【醫學】見光度〈網膜照明單位〉。
  • beam : n 1 梁，棟梁，桁條；（船的）橫梁。2 船幅；（動物、人的）體幅。3 （秤）桿，杠桿，（織機的）卷軸，...
  1. Nuclear photon science with inverse - compton photon beam

    基於逆康普頓光束的核光科學
  2. While the spin angular momentum describes the intrinsic photon spin and corresponds to the optical polarization of light, the orbital angular momentum is associated with the transverse phase front of a light beam

    自旋角動量描述了光的內稟自旋性以及相應的光的偏振，而軌道角動量是和光束的橫向相前相聯系的。
  3. Optical attenuation, widely applied in many fields, can be adopted to acquire single - photon sequence that is foundational in quantum key distribution. we obtain single - photon sequence by precisely controlled optical power distribution along outlets of manifold consist of beam splitter instead of the attenuation by time sequence due to loss

    用線性分束耦合器形成多個輸出口，將光強的時序衰減變為光強沿輸出口的空間分佈，研製出了量子保密通信用的精密控制的強衰減器，實現了對光子數的精密控制。
  4. The analyses given in this paper to quasi - three - level for 946 nm laser are complete. the relation between 946 nm laser transmission and optimal crystal length has been derived from the rate equations describing the population inversion and the photon density in the laser cavity in the steady - state case. the minimal claims to coating have been given on the base of contrasting 946 nm transmission with 1064 nm transmission in the condition of different cavity losses and how the pump beam radius in the laser crystal and optimal crystal length affect the laser threshold and output power of 946 nm laser has been given as well

    對產生946nm譜線的準三能級結構給出了較為完整的分析，利用激光諧振腔處于穩態時的速率方程，導出了準三能級nd ： yag946nm起振時，透射損耗與最佳激光晶體長度的關系，在與1064nm透射損耗相比較的基礎上，給出了不同的腔損耗情況下的最低鍍膜要求，並且給出了激光閾值、輸出功率和最佳激光晶體長度及泵光光斑大小的關系，這為設計室溫下高效運轉的946nm激光器的提供了理論基礎，這種分析方法對研究此類低增益，準三能級或三能級激光系統輸出特性有借鑒意義。
  5. The expression of single photon acquisition probability is deduced from the fundamental - mode gaussian beam

    基於基模高斯光束，推導了單光子捕獲概率的表達式。
  6. Photon beam position monitor signal processing system with logarithmic ratio method

    採用對數比處理技術的同步光位置測量系統
  7. The fundamental principle of this system is as follows. divide the incident beam into two beams, one of which passing through variable optical delay ( vod ), then combination of the two beams with the same amplitude and delay - superposition is sent to bi - photon detector and transformed into current signals, whose intensity is proportional to the intensity of bi - photon autocorrelation signals

    本系統的主要原理是:把入射光分為兩束，讓其中一束光通過一個可調光纖延遲線，再把這兩束具有相同幅度並延時重合的光合路後送進雙光子探測器，該探測器同時吸收兩個光子發生雙光子效應從而產生電流信號，且其大小與雙光子自相關信號的強度成正比。
  8. Practical implementations of quantum key distribution systems use attenuated laser pulses as the signal source rather than single photons. the channels used to transmit are lossy. on the basis of above two points, a combining eavesdropping strategy of intercept - resend and beam - splitting is discussed in terms of eavesdropper ' s technology requirement and detection efficiency and dark count of single - photon counter

    主要工作包括以下三部分：一、基於實際量子密鑰分配（ qkd ）系統中所使用的強衰減的激光脈沖不是單光子，量子密鑰分配的通道不是無損耗的，光子計數器存在探測效率和暗計數以及竊聽者的技術能力也不是無限的這些具體問題。
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