Inverse design of bound states in the continuum in one dimension using supersymmetry

Nitish Chandra; Natalia M. Litchinitser

doi:10.1117/12.2578100

5 March 2021 Inverse design of bound states in the continuum in one dimension using supersymmetry

Proceedings Volume 11695, High Contrast Metastructures X; 1169517 (2021) https://doi.org/10.1117/12.2578100
Event: SPIE OPTO, 2021, Online Only

Abstract

Supersymmetric (SUSY) design is an intuitive procedure for the inverse design of structures from known spectral features. We design one-dimensional corrugated waveguides using SUSY for the desired spectral response. Due to the finite length of the grating, inserted states have a finite lifetime. We obtain a bound state in the continuum by the interference of two states at the same frequency decaying in the same waveguide. The transmission coefficient has no imaginary part at the BIC point, leading to an infinite lifetime. For a finite structure, the phase changes abruptly by 2pi without changing the density of states.

Conference Presentation

Citation Download Citation

Nitish Chandra and Natalia M. Litchinitser "Inverse design of bound states in the continuum in one dimension using supersymmetry", Proc. SPIE 11695, High Contrast Metastructures X, 1169517 (5 March 2021); https://doi.org/10.1117/12.2578100

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available