73882必赢网页版(中国)欧洲杯

Research

Computational & Applied Math Seminar

Superresolution Imaging Using Subwavelength Resonances

Speaker: Hai ZHANG (The Hong Kong University of Science and Technology)
Time: Nov 11, 2020, 15:00-16:00
Location: Tencent Meeting ID 921 243 679

Abstract:

Wave imaging techniques such as optical microscopy play an important role in our understanding of the microscopic world. Because of Abbe's diffraction limit, their resolution is usually limited by half the wavelength of the radiating waves. In this talk, we use examples of Helmholtz resonators, air-bubbles, plasmonic particles and subwavelength holes to demonstrate how subwavelength resonances can be used to break the diffraction limit to achieve superresolution imaging. Theories are also developed to explain the mechanism behind.