All-Si valley-Hall photonic topological insulator

By Tzuhsuan Ma, G. Shvets. Conference on Lasers and Electro-Optics, 2016

656 citations recorded by the source corpus.

An all-Si photonic structure emulating the quantum-valley-Hall effect is proposed. We show that it acts as a photonic topological insulator (PTI), and that an interface between two such PTIs can support edge states that are free from scattering. The conservation of the valley degree of freedom enables efficient in- and out-coupling of light between the free space and the photonic structure. The topological protection of the edge waves can be utilized for designing arrays of resonant time-delay photonic cavities that do not suffer from reflections and cross-talk.

Subfields: Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/92fba09e18e415269291c9ef8005623cc53f5061

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Atomic and Molecular Physics, and Optics

1. Andrea Alù
2. T. Ozawa
3. H. Price
4. A. Amo
5. Baile Zhang
6. I. Carusotto
7. Yihao Yang
8. Alexander B. Khanikaev

In Electrical and Electronic Engineering

1. Andrea Alù
2. Alexander B. Khanikaev
3. T. Ozawa
4. I. Carusotto
5. H. Price
6. Oded Zilberberg
7. Jianwen Dong
8. A. Amo

Citations in the corpus

• Roadmap on topological photonics (2022, background): “Several pioneering works followed, first in microwave PhCs [6], and later in waveguide arrays [7], silicon photonics [8, 9], and other photonic platforms [10, 11].”
• Valley-contrasting physics in all-dielectric photonic crystals: Orbital angular momentum and topological propagation (2017, methodology): “It leads to the valley-dependent edge states [12], i.”