The broad fluorescence spectrum of the organic dyes suggests a broad tunability range for lasers using them as the active material . 有機(jī)染料具有寬熒光光譜使人們想到,若用它們作為激光介質(zhì),則激光器就會(huì)有寬的調(diào)譜范圍。
First , the tunability of optical parametric oscillater ( opo ) in ppln was analyzed 本文首先對(duì)周期性極化鈮酸鋰的光參量振蕩( opo )調(diào)諧特性作了分析。
The measurement results from interdigitated capacitors demonstrated that the tunability is 21 % when the bias is 40v and the loss is 0 . 25 % 對(duì)于叉指電容器結(jié)構(gòu),當(dāng)外加直流偏壓為40v時(shí),調(diào)節(jié)率為21 % ,介電損耗低至0 . 25 % 。
A tunability of 60 % and figure of merit of 133 have been achieved under 30v dc bias , demonstrating their usefulness for frequency - agile microwave devices at the liquid nitrogen temperature 在液氮溫區(qū)表現(xiàn)出很好的微波器件應(yīng)用前景。 4 、采用pld方法制備了高凰100 )取向的bao . ssr05五o創(chuàng)51卿si集成薄膜。
The pst thin films which have high tunability and fom were fabricated successfully . the tunability of pb0 . 4sr0 . 6tio3 thin film is about 83 % ~ 85 % under the 100 khz , and keep constant with the change of frequency Pb04sr06tio3薄膜室溫下的可調(diào)諧量在100khz以下頻率范圍可達(dá)到約83 %一85 % ,且隨頻率的變化可調(diào)性基本維持在這一范圍,變化不大。