第179期 2021年11月刊
发行人:黄建璋所长  编辑委员:曾雪峰教授  主编:林筱文  发行日期:2021.11.30


本所硕、博士生同学参加IEDMS 2021研讨会(International Electron Devices & Materials Symposium 2021)荣获学生论文奖,获奖信息如下,特此恭贺!


学生姓名 奖项 指导教授



Student Paper Award - 最佳论文奖

论文名称:Switching Behaviors of GaN-on-Si Power HEMTs with Deep Source Metal Trenches




Student Paper Award - 最佳论文奖

论文名称:Impacts of Asymmetric Gate Metal Structure on the Current Behavior of Normally-off p-GaN/AlGaN/GaN HEMTs


郭雨鑫、 张钧维


Student Paper Award - 最佳论文奖

论文名称:HfZrO2 Ferroelectric Thin-Film Transistors Based on InGaZnO Channels for Memory Applications




Student Paper Award - 佳作论文奖

论文名称:The First Demonstration of the Optoelectrical Amplifier and High Resolution Thermal Sensor with Light-Emitting Transistors



日期 讲者 讲题 地点 时间



 待订 视讯演讲  14:20~16:00


 待订 视讯演讲  14:20~16:00

IBM Infrastructure specialist

职涯转换的权衡与经验 视讯演讲  14:20~16:00



~ 光电所所属实验场所小型紧急应变演练 ~












图五、事发实验室人员敲门告知附近实验室人员疏散 图六、实验室人员进行疏散

图七、引导人员疏散 图八、设置人员禁止进入标示




图十二、 演练结束后,进行延长线正确使用事项倡导



Dual parametric oscillations from nonlinear photonic crystals

Professor Lung-Han Peng

Graduate Institute of Photonics and Optoelectronics, National Taiwan University

台湾大学光电所 彭隆瀚教授

Prof. PENG recently collaborated with Prof. Azzedine BOUDRIOUA of U. Paris 13 to demonstrate dual parametric oscillations from nonlinear photonic crystals without external cavity mirrors. GIPO Ph.D. student Mr. K.-H. Chang, who is under a dual-degree program between NTU and UP 13, participated in this work with S Mohand Ousaid in U. Paris 13. This collaboration was published in J. Opt. 23, 115501 (2021) with a title “Multi-resonant forward optical parametric oscillations without external mirrors based on nonlinear photonic crystals of LiTaO3,” based upon periodically poled LiTaO3 developed at NTU. We confirmed the OPO oscillation under the conditions of with and without external cavity mirrors, revealing the same slope of conversion efficiency of 9.6% for the transmitted signal waves but varied only in the threshold. We ascribed the oscillations due to feedback from optical reflection on the highly polished facets. This can lead two pairs of (signal, idler) waves oscillations to occur at optical thresholds of 100 MW/cm2 and 180 MW/cm2, respectively, for the first and the second OPO from a single-period 8.82μm 1D PPLT. Our analysis indicates that the quasi-phase-matching condition for the second OPO is caused by local index variation which reveals a competing effect between quadratic cascading and electro-optic induced refractive index changes.


3D optical coherence tomography for visualizing the structures of cells cultivated in complex culture systems

Professor Sheng-Lung Huang

Graduate Institute of Photonics and Optoelectronics, National Taiwan University

台湾大学光电所 黄升龙教授

Three-dimensional (3D) configuration of in vitro cultivated cells has been recognized as a valuable tool in developing stem cell and cancer cell therapy. However, currently available imaging approaches for live cells have drawbacks, including unsatisfactory resolution, lack of cross-sectional and 3D images, and poor penetration of multi-layered cell products, especially when cells are cultivated on semitransparent carriers. Herein, we report a prototype of a full-field optical coherence tomography (FF-OCT) system with isotropic submicron spatial resolution in en face and cross-sectional views that provides a label-free, non-invasive platform with high-resolution 3D imaging. We validated the imaging power of this prototype by examining (1) cultivated neuron cells (N2A cell line); (2) multilayered, cultivated limbal epithelial sheets (mCLESs); (3) neuron cells (N2A cell line) and mCLESs cultivated on a semitransparent amniotic membrane (stAM); and (4) directly adherent colonies of neuron-like cells (DACNs) covered by limbal epithelial cell sheets. Our FF-OCT exhibited a penetrance of up to 150 μm in a multilayered cell sheet and displayed the morphological differences of neurons and epithelial cells in complex coculture systems. This FF-OCT is expected to facilitate the visualization of cultivated cell products in vitro and has a high potential for cell therapy and translational medicine research.

Fig. 1. The histological, 3D and 2D cross sectional FF-OCT images of multi-layered cultivated cell sheets. (A) FF-OCT 3D images of DACN. Yellow arrows show the outline surface of the DACN. Red arrow shows the epithelial type of cells spread at the bottom of DACN. (B) FF-OCT 2D images of DACN. Yellow arrows show the outline surface of the DACN. (C, D) Hematoxylin and eosin (H&E) staining of the cross-sectional DACN clearly demonstrated two different cell types, with epithelial like cells covered the colonies of neuron like cells from the bottom to the whole superficial surface. (E) 2D cross sectional FF-OCT images of DACN clearly demonstrated epithelial like cells covering the surface of neuron like cells. (D, E) Green arrow indicates the superficial epithelial cells. Red arrow indicates the neuron like cells.

(A, B) Scale bar = 100 μm. (C) scale bar =50 μm. (D, E) scale bar= 25 μm. DACN: directly adherent colonies of neuron like cells.



C. Y. Tsai, C. H. Shih, H. S. Chu, Y. T. Hsieh, S. L. Huang, and W. L. Chen, “Sub-micron spatial resolution optical coherence tomography for visualizing the 3D structures of cells cultivated in complex culture systems,” Scientific Reports, 11, 3492, 2021.




姓名:徐蕾   指导教授:吴志毅教授





我们还提出了一种新型的凡德华异质结构场效应晶体管用于解决过渡金属二硫化族化物晶体管因过高的接触电阻、低载子迁移率与易被传统掺杂方式破坏的问题。其中,二硫化钨/二硫化钼/二硫化钨双重异质结构场效晶体管,藉由两个异质结构的结合,更可使场效载子迁移率在30 K的低温下高达169.7 cm2 V-1 s-1




— 资料提供:影像显示科技知识平台 (DTKP, Display Technology Knowledge Platform) —

— 整理:林晃岩教授、吴思洁 —


当你在公园闲逛可能有这样的经历,在无意中一次又一次地遇见同一个人。发生这种情况的机会有多少?这种情况实质由波利亚数(Pólya number)的概念(由匈牙利数学家Georg Pólya (1887–1985) 提出)说明,它描述了返回到图中起点的机率[1]。波利亚数已被证明是对不同类型的随机(古典)和量子(非古典)行走(walk)路程进行分类的有用概念。有两类主要的随机行走由这个概念定义循环(你确定地回到你行走的起点)和短暂(你不能确定返回)。


上海的Xiao-Yun Xu及其研究团队[4]在Nature Photonics上发表一项实验研究,该研究探索了由最邻近的耦合光波导晶格组成的二维 (2D) 碎形图中的量子行走行为。光脉冲一开始在(波导的)一个点注入,并在它们通过晶格传播时分析它们的传播。

碎形图案有一段悠久的历史。在11世纪,欧洲艺术家创造了基于自相似等边三角形的装饰图案[5]。具有三角形或正方形的类似碎形结构现在分别被称为Sierpiński 垫片和地毯,如图一所示(以波兰数学家 Wacław Sierpiński(1882-1969)的名字命名)。也可以将这些对象视为二维晶格,其中缺少了某些晶格点。一个量子在这种晶格上行走在数学上等效于电子的紧束缚(tight-binding)模型。因此,最初定位的行走者的传播透露出[6]底层晶格的一些传输特性[7]。



图一、Sierpiński垫片和地毯的构造类似光波导晶格。a. Sierpiński垫片的虚架构是基于重复三个填充三角形的简单图案,在顶点放置波导。b. 一个类似Sierpiński地毯的架构是基于正方形的简单图案。[4]

Xu和团队的实验基于在横向平面中排列成格子并纵向运行的波导(见图一)。技术上来说,实现这类型实验的困难处在于需要根据规定的图像结构,以均匀且与深度无关的方式制备波导。波导晶格是由直接激光写入制成的,是一种透过聚焦超短光脉冲改变玻璃折射率的技术。来自飞秒激光的脉冲(重复频率为1 MHz,中心波长为513 nm,脉冲持续时间为290 fs)通过空间光调制器(spatial light modulator, SLM)聚焦到硼硅酸盐(borosilicate)基板上。


为了表征量子行走的传播,对原点进行了均方距离(mean square distance, MSD)和返回机率测量。这个研究的目的是为了揭示不间断的动态行走,与不同的长度重复的制备、传播以及测量周期有关(转换成量子行走的传播时间)。循环机率的时间演化显示了研究三种类型的碎形特征的阶梯式演化。步骤发生的时间(传播长度)大量显示出与理论有一致性。所有三个碎形的短期 MSD 指数缩放都可以以令人信服的精度测量。长期缩放也可以恢复与理论一致的Sierpiński 地毯(特征指数:1.89)。






Tamás Kiss, Igor Jex, “Photons walk on fractal graphs.” Nature Photonics 15, 641-642 (2021)


DOI: 10.1038/s41566-021-00868-x


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[2] Štefaňák, M., Jex, I. & Kiss, T Phys. Rev. Lett. 100, 020501 (2008)

[3] Darázs, Z. & Kiss, T. Phys. Rev. A 81, 062319 (2010).

[4] Xu, X.-Y. et al. Nat. Photon. https://doi.org/10.1038/s41566-021- 00845-4 (2021).

[5] Conversano, E. & Lalli, L. T. J. Appl. Math. 4, 113–122 (2011)

[6] Darázs, Z., Anishchenko, A., Kiss, T., Blumen, A. & Mülken, O.Phys. Rev.E 90, 032113 (2014).

[7] van Veen, E., Yuan, S., Katsnelson, M. I., Polini, M. & Tomadin, A. Phys. Rev. B 93, 115428 (2016).

[8] Perets, H. B. et al. Phys. Rev. Lett. 100, 170506 (2008).

[9] Tang, H. et al. Sci. Adv. 4, eaat3174 (2018).

[10] Tang, H. et al. Nat. Photon. 12, 754–758 (2018).

[11] Tiel, F., Kessler, D. A. & Barkai, E. Phys. Rev. A. 97, 062105 (2018).

[12] Grünbaum, F. A., Velázquez, L., Werner, A. H. & Werner, R. F. Commun. Math. Phys. 320, 543–569 (2013).

[13] Nitsche, T. et al. Sci. Adv. 11,eaar6444 (2018).

[14] Apers, S., Gilyén, A. & Jefery, S. In Proc. 38th Symposium on Teoretical Aspects of Computer Science 6, 6:1-6:13 (STACS, 2021).

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