光学衬底上微光纤的传输损耗

选择不同的光学衬底,采用纳米光纤锥直接耦合的方法,测量微光纤传输损耗与光学衬底之间的关系,分析损耗机制,探索降低损耗的有效方法.结果表明:放置于MgF2及CaF2光学衬底上的微光纤传输损耗明显高于悬置于空气中的损耗值;衬底的折射率越接近光纤的折射率,置于其上的微光纤传输损耗越大;在同一种光学衬底上,微光纤直径越大,其传输损耗越小;光学衬底的存在,使微光纤中光场能量中心向衬底方向偏移,增加了传输损耗;采用将微光纤部分悬空的方法可有效降低传输损耗.国家青年科学基金资助项目(61505056);;华侨大学高层次人才科研启动项目(12BS220

InFluence of Laser Irradiation on Serum Albumen of Castor Silkworm

我们采用不同波长的激光照射蓖麻蚕蚕卵，使它产生半致死效应，经孵化后的幼虫在五龄期取血分析它的血清蛋白谱，证实了激光照射对蓖麻蚕的遗传性状具有诱变作用，其机理涉及到激光照射与基因表达及调控的关系。Eggs of castor silkworm are irradiated with diFFerent wavelengths of laser and they are made to produce the semilethal eFFect.AFter incubation, taking some blood From larva at the age of Five, the spectra of its serum albumen is analysed.It has been conFirmed that laser irradiation has a mutagenesis on heredity of castor silkworm.the mechanism involved with the relation of laser irradiation with gene expression, as adjuustion and control.福建省自然科学基

EFFECT INVESTIGATION of LASER IRRADIATION ON CASTORSILKWORM

本文采用不同激光波长和不同形式的激光照射蓖麻蚕蚕卵，观察蚕卵的孵化率；蚕血液的酯酶同工酶、血清蛋白、染色体等在激光照射前后的变异情况。Eggs of castor silkworm are irradiated with the diFFerent wavelengths and diFFerent Form of lasersin the paper.Variation situations of its incubativity,esterase isozyme From egg blood,serum albumen andcolor body are observed beFore and aFter the laser irradiation福建省自然科学基