Philippe Djorwé, University of Ngaoundéré, Cameroon and Wissenschaftskolleg, Berlin

Leuchs-Russell Auditorium, A.1.500, Staudtstr. 2

Location details

Abstract:

Opto/electromechanical systems enabling interaction between electromagnetic waves and mechanical objects have been recently used as platform to engineer Exceptional Points (EPs), i.e., Non-Hermitian singularities. These EPs have fostered interesting technological applications such as nonreciprocal transmission, wireless power transfer, hardware encryption, and sensing sensitivity among others. While it is commonly agreed that EPs improve most of these applications, there is a controversial debate regarding the sensing sensitivity enhancement near EPs owing to noise amplification issue. After reviewing relevant achievements on EPs related to opto/electromechanical systems, this talk argues on the sensing issue arising at the vicinity of EPs. Moreover, future directions on how to handle this drawback on EP-sensing will be discussed, and this might shed light on new opportunities of sensing around EPs.