实时全息用于多幅分光延时干涉复杂光路的优势

Real-time holography in complicated optical system for multi-frame interferome try with time-delay splitting

为解决快脉冲等离子体光学诊断中所用的多幅分光延时干涉系统光路复杂、无法同时调出多幅背景条纹平行、平直的干涉图的困难,在原有设备的基础上,将实时全息方法应用于多组物参光的干涉显示,在实验现场恶劣的环境条件下成功地一次采得5幅条纹平直均匀的干涉图,取得了较好的结果,为场分布量的定量测量读数奠定了基础。结果表明,实时全息具有多方面的优越性,不失为其它光学、干涉方法难以奏效的复杂光学系统及多种极端物态显示研究中的有效手段。

Multi-frame interferogram s with parallel straight background fringes are difficult to obtain due to the com plicated optical system used for plasma diagnosis with a quick-pulse discharge, the multiple light beam transmissions and reflections and the multi-group object and reference beams from only one Mach-Zedover interferomet er. Real-time holometry was used with multi-frame interferometric visualizatio n based on the original system in harsh test environments to successfully record five interferograms with straight background fringes. Real-time holometry can then be used for quantitative measurement of field distributions, in non-ideal environments. Both the theoretical analysis and the experimental tests indicate that real-time holometry has many advantages for visual investigations with eit her ultra-states or complex optical systems.