常見例句雙語例句PDLC volume holographic grating has much higher diffraction efficiency than normal grating, because it can focus the diffraction light to the non zero band.PDLC體全息光柵可使光柵的衍射能量集中到非零級的衍射級次上,大大提高衍射效率。Furthermore, the paper offers the error limited of these parameters and they are good to guide practical fabrication of the volume phase holographic grating.同時(shí),本文還計(jì)算出了這幾種參數(shù)的誤差容限,這對體積相位全息光柵的實(shí)際制作具有指導(dǎo)作用。First, the properties of volume holographic grating, such as diffraction efficiencies, angle and wavelength selectivity, have been theoretically analyzed by using the couple-wave theory.首先應(yīng)用耦合波理論對體全息光柵的衍射效率以及角度選擇性和波長選擇性等衍射特性進(jìn)行了分析。 返回 holographic grating