Robust nonlinear isolators based on frozen mode exceptional point degeneracies
Journal Article
·
· Physical Review Research
- Wesleyan University, Middletown, CT (United States)
- Air Force Research Laboratory, Wright Patterson AFB, OH (United States)
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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