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双色相干场高次谐波
Spatioangularly Multiplexed Three Dimensional Holographic Disks
【摘要】 通过数值求解一维含时薛定谔方程,研究了激光频率对谐波辐射的影响以及双色相干场(基频光与其二倍频光或三倍频光)作用于原子时的谐波辐射行为。结果表明,在其它条件相同时,用低频入射光可获得更高次谐波,但转换效率较低,高频入射光转换效率较高,但只能获得较低次谐波。基频光及其三倍频光同时作用于原子,谐波次数和转换效率都有所提高。基频光及其二倍频光同时作用于原子,不但谐波次数增多,转换效率提高,重要的是除了通常的奇次谐波外,还出现了偶次谐波。并定性解释了其产生机制和谐波效率提高的原因。
【Abstract】 A new three dimensional holographic disk scheme based on the spatioangular multiplexing is proposed. The principle and feasibility of this scheme are analysed by using a simplified ray optics method. It is shown that this scheme has potential applications for implementing holographic storage with a high capacity and high data transfer rate, as well as a relatively simple read/write system.
【关键词】 一维含时薛定谔方程;
双色相干场;
高次谐波;
【Key words】 volume holographic storage; 3 D storage disks; storage capacity; selectivity; spherical reference beams.;
【Key words】 volume holographic storage; 3 D storage disks; storage capacity; selectivity; spherical reference beams.;
- 【文献出处】 光学学报 ,ACTA OPTICA SINICA , 编辑部邮箱 ,1997年08期
- 【分类号】O437
- 【被引频次】3
- 【下载频次】50