【摘 要】
：
Polarization handling is of fundamental importance in photonic integrated circuits.Most SOI wave guiding devices only function well for a single polarizatio
【机 构】
：
DepartmentofPhysics,HarbinInstituteofTechnology
论文部分内容阅读
Polarization handling is of fundamental importance in photonic integrated circuits.Most SOI wave guiding devices only function well for a single polarization, or even highly polarization dependent, such as the slot waveguides.Thus, polarization rotators are extremely desired in order to process the orthogonal polarized light.Here, we report a design of polarization rotator for slot structures from the vertical to the horizontal direction, or vice versa, and an ultra-short conversion length is demonstrated theoretically.
其他文献
We investigate the Higgs-like excitations of artificial gauge potential in cold atoms.We demonstrate that when a non-Abelian gauge potential is reduced to Abeli
We investigate theoretically the nonequilibrium finite-frequency current noise in a four-terminal quantum point contact of interacting helical edge states at a
Grain boundaries (GBs) are one type of inevitable line defects in chemical vapor deposition fabricated graphene.Using density functional theory, atomic structur
Recently, much attention has been paid to the photoionization processes of confined atomic systems.We have applied the multiconfigration relativistic random-pha
We describe how a linearly coupled spinor Bose condensate can be used as a physically accessible quantum simulator of the early universe [1].In particular, we s
强激光场中原子稳定化一直是原子分子理论学家非常感兴趣的问题,一般在Kramers-Henneberger坐标下进行理论研究[1].理论上认为,原子稳定化需要非常苛刻的条件,如:激光光子能
与无机太阳能电池相比,有机太阳能电池(OSCs)成本较低,因此受到了工业界及学术界的广泛关注.但是,低的能量转换效率阻碍了OSCs的产业化进程[1].激子在有机材料中的扩散长度仅
本文介绍了应用成像光纤产品与CCD以及COMS芯片进行光学耦合,制作成为新型的光学数字化成像器件的研究工作,介绍了国内外相关技术的历史及发展现状,结合了国内外先进的技术特
随着信息化社会的到来,数据、多媒体业务的迅速崛起,网络带宽需求量和用户数的进一步增加,WDM技术被引入接入网,采用波长路由来代替功率分束,即WDM-PON方案.该方案为每个用户
钛及钛合金以其优良的物理化学性能(如较强的耐腐蚀性和质量轻,较高的韧性和熔点等)在牙种植领域得到了广泛的应用.然而,由于较高的种植体周围感染发生率以及缺乏良好的骨组