量子相干表面等离子体谐振系统中古斯-汉欣位移的控制

来源 :光学学报 | 被引量 : 0次 | 上传用户:deadhorse
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
当光束在两种介质的分界面上发生全反射时,反射光会产生横向的古斯-汉欣(GH)位移。在Kretschmann结构中引入原子介质,利用耦合光激发表面等离子体波,研究了表面等离激元辅助的干涉效应作用下探测光的反射GH位移。通过对比耦合光分别为行波和表面等离子体波时探测光的反射率和反射GH位移,发现当探测光入射角偏离谐振角时,反射率曲线会出现类似Fano共振的不对称性,反射GH位移关于探测光失谐量有一段线性变化区域,且可以在正负之间变化;当耦合光为表面等离子体波时,反射GH位移对探测光失谐量的变化更敏感。
其他文献
Optical parameters (properties) of tissue-mimicking phantoms are determined through nonin-vasive optical imaging. Objective of this study is to decompose obtained diffuse reflectance into these optical properties such as absorption and scattering coeffici
A novel dual-loop optoelectronic oscillator (OEO), which is constructed based on all optical signal processing, is proposed and analyzed. By inserting an erbium-doped fiber amplifier (EDFA) and a fiber Bragg grating (FBG) on the optical domain, the amplif
期刊
Multicore fibers are expected to be a game-changer in the coming decades thanks to their intrinsic properties, allowing a larger transmission bandwidth and a lower footprint in optical communications. In addition, multicore fibers have recently been explo
期刊
The squeezed state is important in quantum metrology and quantum information. The most effective generation tool known is the optical parametric oscillator (OPO). Currently, only the squeezed states of lower-order spatial modes can be generated by an OPO.
期刊
基于互易定理研究了光波入射时微粗糙面与其上方球形粒子复合模型的光散射。根据粗糙表面电流积分方程并利用表面微扰展开,得到了微粗糙面表面极化电流的迭代解,给出了耦合电场的计算方法。结合散射耦合场散射矩阵和已有的微粗糙面及球形粒子的散射矩阵,给出了复合模型散射截面的计算公式,数值计算了复合模型的后向散射截面并进行了详细讨论。
A high-precision digital measuring scheme for half-wave voltage of Y-tap multiple integrated optical circuits is proposed. This scheme is based on Sagnac interferometer modulated with digital step waveform whose frequency is half of eigen frequency of the
With the rapid development of the light-emitting diode (LED) industry, interest in visible light communication (VLC) is growing. The limited bandwidth of commercial LEDs is one of the main challenges to achieve high-speed VLC. In this Letter, a kind of ba
飞秒激光微加工技术具有加工精度高、热效应小、损伤阈值低以及能够实现真正的三维微结构加工等优点,这些特性是传统的激光加工技术所无法取代的。首先回顾了激光微加工和超短脉冲激光技术的发展历史,然后介绍超短脉冲激光与金属和介质材料相互作用的机制,接着阐述了飞秒激光直写、干涉和投影制备等各种加工方法的原理,重点讨论飞秒激光在三维光子器件集成、微流体芯片制备及其在生化传感方面的应用等,最后展望了飞秒激光微加工领域所面临的机遇和挑战,指出了未来的研究方向。
激光器用于材料加工和切割一般与所加工产品本身对辐射的吸收有关,并取决于熔化、蒸发和升华等各种热效应。吸收系数减小时,加工效率会降低。因此,依靠与被加工材料接触的吸收材料对激光辐射的吸收来增加能量的输入非常有意义。这种吸收物质可放在被加工产品的激光入射面;或者被加工材料对激光辐射是透明的,也可放在它的反面。后者在分划板刻划时曾用于将着色物质熔入玻璃衬底。此外,探索与被加工产品相接触的材料作用的新机理,对提高加工效率和精确度是有意义的。
期刊
A multiplexed holographic display video has been achieved by using a passive azo-dye-doped liquid crystal (LC) cell. Holograms formed in this cell can be refreshed in the order of several milliseconds. By angular multiplexing technique, dynamically multip