零吸光度 的英文怎麼說
中文拼音 [língxīguāngdù]
零吸光度
英文
zero absorbance-
By calculating the feynman diagram in rtf, we find that when taking into account both the thermal photon emission, absorption and the virtual photon exchange processes, the infrared divergences at zero and finite temperature can be cancelled at the same time. the full quantum calculation results for soft photon radiation coincide completely with the poisson distribution obtained in the semiclassical approximation ( the coupling of the classical current and quantized field )
通過實時溫度場論下的費曼圖計算，我們得到：將實光子的發射、吸收，虛光子的交換過程同時考慮時，零溫場論中出現的和由溫度效應引起的紅外發散都能得到消除；並且完全量子場論下的軟光子輻射幾率與半經典近似下（經典的電流和量子化的電磁場之間的耦合）得到的泊松分佈結果完全一致。A reflective polarizer based on a double - layer subwavelength metal - dielectric grating structure is presented here. numerical simulations show that at normal incidence, this polarizer reflects light polarized perpendicular to the grating lines ( transverse magnetic polarization ), but strongly absorbs parallel - polarized light ( transverse electric polarization ). the polarization extinction ratio is very high
理論計算表明，零角度入射時，該光柵結構在可見波段對tm波有很高的反射率，而對te波強烈吸收，即可獲得很高的反射光偏振比，可以作為理想的集成偏振器件。Using the new technique, the zero, the first and the second differential pas of some persons " blood was measured, the result shows : the new technique is more sensitive than the common pas technique. the pas of many persons " blood has absorption peak around the wavelength of 637nm and 664nm
並用導數光聲光譜技術測量了各種人血的零階，一階，二階導數，實驗表明：導數光聲光技術比普通光聲吸收光譜技術具有更高的檢測靈敏度；許多人的血液的光聲譜在637nm和664nm附近有吸收峰。
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