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Title: Robust nonlinear isolators based on frozen mode exceptional point degeneracies

Journal Article · · Physical Review Research

We introduce a class of imperfection-protected nonlinear isolators designed to operate at exceptional point degeneracies (EPDs) of the Bloch modes of periodic photonic structures. These Bloch EPDs are responsible for slow light and the emergence of a scattering frozen mode regime (FMR). When a weak spectral asymmetry is introduced, the group velocity in their proximity varies sharply, boosting the directional nature of the nonlinear interactions and leading to extreme isolation.

Research Organization:
Wesleyan University, Middletown, CT (United States)
Sponsoring Organization:
Air Force Office of Scientific Research (AFOSR); USDOE; USDOE Office of Science (SC), Accelerator R&D and Production (ARDAP)
Grant/Contract Number:
SC0024223
OSTI ID:
2507357
Journal Information:
Physical Review Research, Journal Name: Physical Review Research Journal Issue: 1 Vol. 7; ISSN 2643-1564
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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