生物光電物理與元件

In this course, we will go though the basic knowledge and skills to work with biological soft matter. The 1st part introduces the bio material, including thermotropic liquid crystal, lyotropic liquid crystal, colloids, and biological polymer. We will introduce phase transitions, and demonstrate how to identify the phases and microstucture under microscopes. The electrical, mechanical, and optical properties of the bio soft matter will be discussed, especially, how the structure of the molecule determines the physical properties. The 2nd part is propagation of light in birefringent material. The birefringence leads to ordinary and extraordinary modes of light propagation, and switches the polarization state of light. The theory will be derived. Additionally, bio materials are chiral materials. They show optical activity. We will investigate how the chirality + birefringence lead to reflection, transmission, and scattering of light. This part consist of two art & craft experiments: (1) Collage of tapes: students will learn how birefringence colors show the orientation of molecules, which is the essential idea of polarized optical microscopy. (2) Cellulose photonic crystals: it shows the three stable states of chiral liquid crystal, which is the essential idea of colored electronic paper. The 3nd part is about the four typical liquid crystal operation modes, which are In-Plane-Switching (IPS), Vertically Aligned (VA), Electrically Controlled Birefringence (ECB), and Twisted Nematic (TN). We will analyze the cell structure, the materials, the assembly, the operation, and their characteristic properties. Finally we explore the novel bio optoelectronics, such as electronic ink, chromogenic medical reagents, bio electronics and quantum photonics ...etc. 在本課程中,我們會介紹生物物質基本的物理性質,還有如何操作生物光電材料。 第一部分介紹生物材料:熱致型液晶、溶致型液晶、膠體、和生物高分子。我們會介紹物質的相與相變,以及如何用顯微鏡辨識液晶相。我們會討論生物物質的電子、機械、光學性質,以及分子結構如何決定物理性質。 第二部份探討光如何在雙折射物質中傳播。光在雙折射物質中會分解成尋常光與非尋常光,兩種傳播模式的相位差可以用來切換光的偏極態。生物物質還有手性(旋光性),我們會繼續討論手性結構如何造成旋光穿透/反射/散射。 此部份做兩個美勞實驗: (1)膠帶拼貼畫:體驗如何用雙折射色判斷分子指向(偏光顯微術的基本原理)。 (2)纖維素光子晶體:體驗手性液晶三穩態(彩色電子紙的基本原理)。 第三部分介紹四種典型的液晶(向列型物質)的操作模式,分別是水平操作模式(IPS)、垂直操作模式(VA)、電控雙折射模式(ECB)和扭轉操作模式(TN)。我們將分析元件的結構、材料、如何組裝、如何操作及其特性。 最後我們探討新穎生物光電元件,例如:電子墨水、顯色式醫學試片、生物電子 / 光量子元件...等等。

General Physics, Electromagnetism, Optics, and Thermal physics

Reading club / googling / discussions 讀書會討論 Lectures 老師講課 Art and craft experiment 美勞實驗 Fieldwork 田野調查 Reading list will be given. You have access to the reading material: *NYCU library *On internet in the NYCU domain *Open access books and papers

Reading club contribution 讀書會貢獻 25% Art & craft: Polarized optical microscopy 美勞實驗: 偏光顯微術 25% Art & craft: Cellulose photonic crystal 美勞實驗: 纖維素光子晶體 25% LCD OP modes: Fieldwork 液晶操作模式田野調查 25%

[Physics] Pierre-Gilles Gennes and Jacques Badoz, Fragile Objects - Soft Matter, Hard Science, and the Thrill of Discovery, Copernicus New York and Springer-Verlag New York, Inc. 1996. Michel Mitov, Sensitive Matter: Foams, Gels, Liquid Crystals, and Other Miracles, Harvard University Press, 2012. Michel Mitov, Cholesteric liquid crystal in living matter, Soft Matter, 13, 4176-4209, 2017. Pierre-Gilles de Gennes and Jacques Prost, The Physics of Liquid Crystals, 2nd ed., Clarendon Press or Oxford Science Publications, 1995. P. J. Collings and J. W. Goodby, Introduction to Liquid Crystals : Chemistry and Physics, Taylor & Francis, 1997. P. Oswald and P. Pieranski, Nematic and cholesteric liquid crystals, Taylor and Francis, 2005. I. Dierking, Textures of liquid crystals, Wiley-VCH, 2003. [Devices] Deng-Ke Yang and Shin-Tson Wu, Fundamentals of Liquid Crystal Devices, 2nd ed., John Wiley & Sons, Ltd., 2015. Po-Chi Yeh and Claire Gu, Optics of liquid crystal displays, 2nd ed., Wiley, 2009.

地點

by appointment

時間

by appointment

聯絡方式

jiehwen.tsung@nycu.edu.tw