phase hologram 中文意思是什麼
phase hologram
解釋
相位全息圖-
The holographic wavefront recording process records the interference pattern of the object and the reference waves, and thus forms the hologram, which simultaneously records the information about the amplitude and phase of the object waves ; the holographic wavefront reconstruction, by means of the diffracted waves, can reconstruct the original object wave from the hologram illuminated by lights
全息波陣面記錄將物光和參考光以干涉條紋記錄成全息圖，此全息圖同時記錄了物光波的振幅和相位；全息波陣面重現，就是用光波照射全息圖，通過光的衍射，從全息圖中再現出原始物體的光波。 -
Abstract : first, this paper deduced the diffraction equation for refractive index phase modulation holographic grating, and pointed out that the diffraction efficiency was mainly influenced by refraction index modulation, and the diffraction efficiency of different levels came from many factors. the volume grating effect affected the diffraction efficiency of transmission hologram
文摘:首先推出折射率相位調制型全息光柵的衍射方程，由此說明衍射效率主要取決于調制折射率，且各級衍射光的衍射效率不同是多種原因造成的。 -
The photoresist is used as recording materials to take the master of embossing hologram, it has the advantage of easily replicate. besides dcg is used because it is an transparent phase recording medium, the information can not be observed before development, so it can be used in the hidden information carry
另外採用dcg作為記錄材料是因為它是一種透明位相材料，存儲后在未用異丙醇處理前是完全透明的，可作為隱型信息存儲加密攜帶，在需要時處理出重要信息。
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