【摘要】 理论计算和实验都表明（ＨｇＣｄ）Ｔｅ具有很强的Ｆｒａｎｚ－Ｋｅｌｄｙｓｈ效应。利用Ｆｒａｎｚ－Ｋｅｌｄｙｓｈ效应，可以使（ＨｇＣｄ）Ｔｅ探测器的光吸收产生电致偏移，对１０．６μｍＣＯ２激光辐射由不吸收状态转变为吸收态，并进而为远红外（ＨｇＣｄ）Ｔｅ探测器提供一种有效的光过荷保负方法，文中提出了这种基于Ｆｒａｎｚ－Ｋｅｌｄｙｓｈ效应的光探测器激光保护新方法。分析了该方法的激光防护原理，给出了实验结果。更多还原

【Abstract】 Theoretical calculation and experiments show that Franz-Keldysh effect has significant strength in mercury - cadmium- telluride(MCT ).The Franz - Kdldysh effect may be used to electrically shift the absorption of the(HgCd)Te photodiodes from nonaborbing to adsorbing states for 10.6 μm radiation and,furthermore,Provide useful method by which the infrared (HgCd)Te detectros can be protected from optical overload.A new way to protect optical detector from powerful laser based on Ftsnz-Keldysh effect is described.The principle of protection is analysed,and the experimental reuslts are discussed.更多还原