TY - JOUR
T1 - Edge-Mode Lasing in 1D Topological Active Arrays
AU - Parto, Midya
AU - Wittek, Steffen
AU - Hodaei, Hossein
AU - Harari, Gal
AU - Bandres, Miguel A.
AU - Ren, Jinhan
AU - Rechtsman, Mikael C.
AU - Segev, Mordechai
AU - Christodoulides, Demetrios N.
AU - Khajavikhan, Mercedeh
N1 - Funding Information:
The authors gratefully acknowledge the financial support from Office of Naval Research (ONR) (N00014-16-1-2640), National Science Foundation (NSF) (ECCS-1454531, DMR-1420620, and ECCS-1757025), Air force Office of Scientific Research (AFOSR) (FA9550-14-1-0037), Binational Science Foundation (BSF) (2016381), and Army Research Office (ARO) (W911NF-16-1-0013 and W911NF-17-1-0481). This work was also partially funded by the Qatar National Research Fund (NPRP 9-020-1-006). This work was supported by European Commission Non-Hermitian Quantum Wave Engineering (NHQWAVE) project (MSCA-RISE 691209).
Publisher Copyright:
© 2018 American Physical Society.
PY - 2018/3/15
Y1 - 2018/3/15
N2 - We report the first observation of lasing topological edge states in a 1D Su-Schrieffer-Heeger active array of microring resonators. We show that the judicious use of non-Hermiticity can promote single edge-mode lasing in such arrays. Our experimental and theoretical results demonstrate that, in the presence of chiral-time symmetry, this non-Hermitian topological structure can experience phase transitions that are dictated by a complex geometric phase. Our work may pave the way towards understanding the fundamental aspects associated with the interplay among non-Hermiticity, nonlinearity, and topology in active systems.
AB - We report the first observation of lasing topological edge states in a 1D Su-Schrieffer-Heeger active array of microring resonators. We show that the judicious use of non-Hermiticity can promote single edge-mode lasing in such arrays. Our experimental and theoretical results demonstrate that, in the presence of chiral-time symmetry, this non-Hermitian topological structure can experience phase transitions that are dictated by a complex geometric phase. Our work may pave the way towards understanding the fundamental aspects associated with the interplay among non-Hermiticity, nonlinearity, and topology in active systems.
UR - http://www.scopus.com/inward/record.url?scp=85044237700&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85044237700&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.120.113901
DO - 10.1103/PhysRevLett.120.113901
M3 - Article
C2 - 29601765
AN - SCOPUS:85044237700
SN - 0031-9007
VL - 120
JO - Physical Review Letters
JF - Physical Review Letters
IS - 11
M1 - 113901
ER -