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 - 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.
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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 -