200307 Exploring Graphene Physics for Optical Sensing

Title:
Exploring Graphene Physics for Optical Sensing

Speaker:
洪仕安 (Jason Horng), PhD, University of Michigan

Time:
03/07 (Sat.) 5 pm PST, 6 pm MST, 7 pm CST, 8 pm EST
03/08 (Sun.) 9 am Taiwan

Keywords:
Physics, Nano-materials, Electro-optics, 2D materials, Optical sensing, Electro-chemistry, Bio-electricity

Abstract:
Since the discovery of graphene, it has drawn significant attention in many different research or application fields due to its extraordinary electrical and optical properties. As a two-dimensional material, both graphene's electrical and optical properties can be dramatically modified due to small perturbations from the surrounding environment. Therefore, graphene has great potential as active medium for versatile and sensitive sensors. Early studies have demonstrated excellent sensitivity of graphene field-effect transistor for gas molecule sensing and action potential detection. As will be shown in this presentation, graphene optical sensor can also be designed to have good sensitivity and enables new possibilities of optical spectroscopic measurement as well as opto-electronic studies. With the versatility of graphene, we show that graphene provides a great platform for electrochemical optical sensing as well as opto-electronic sensor in bio-electric detection.

200208 Psychology and Law: How Science Can Help to Make a Better Legal System

Title:
Psychology and Law: How Science Can Help to Make a Better Legal Systems

Speaker:
蘇怡安 (I-An Su), PhD student, Cornell University

Time:
02/08 (Sat.) 5 pm PST, 6 pm MST, 7 pm CST, 8 pm EST
02/09 (Sun.) 9 am Taiwan

Keywords:
Psychology, Developmental psychology, Forensic psychology, Psychology and law, Child eyewitness memory, Child testimony, Children’s suggestibility, Developmental and forensic psychology

Abstract:
This 45-minute talk will be in three parts. In the first part, the speaker will briefly introduce the field of psychology and law. What are the research topics in this field? Where are resources if you want to know more about forensic psychology? Secondly, the speaker will talk about her current research area, child eyewitness memory, and child testimony. What factors are affecting children’s statements in the courtroom? Whether and how science can help to improve children’s reliability and credibility in legal proceedings? Last but not least, the speaker will share current research from her lab. A 15-minute Q/A and general discussion will be held after the talk.