26th Australian Institute of Physics Congress and the Australian and New Zealand Conference on Optics and Photonics

Session

ANZCOP: Topological & Chiral Nanophotonics

ANZCOP

10 Dec 2026, 11:00

Belinda Hutchinson Building (The University of Sydney )

Conveners

ANZCOP: Topological & Chiral Nanophotonics

• Jeremy Bourhill

844. Weaving topologies into light

Andrew Forbes (School of Physics at the University of Witwatersrand, South Africa)

10/12/2026, 11:00

ANZOS | Photonics and Optics (ANZCOP)

Invited talk

In the early 1960s, inspired by developing notions of topological structure, Tony Skyrme suggested that sub-atomic particles be described as natural excitations of a single quantum field. Although never adopted for its intended purpose, the notion of a skyrmion as a topologically stable field configuration has proven highly versatile, finding application in condensed matter physics, acoustics...

171. Nonlinear chiral response governed by meta-atom rotation

Dhruv Hariharan (University of Sydney)

10/12/2026, 11:30

ANZOS | Photonics and Optics (ANZCOP)

Contributed Oral

Chiral photonics provides powerful routes for controlling the handedness of light, enabling unprecedented control over light-matter interactions and novel optical functionalities. Metasurfaces have emerged as a powerful platform for controlling chiral responses due to their design versatility and capacity for light manipulation on a sub-wavelength scale. In particular, recent works have...

458. Directional chiral emission enabled by light-cone-proximal quasi-BICs

Dr Dmitrii Gromyko (Science, Mathematics, and Technology, Singapore University of Technology and Design)

10/12/2026, 11:45

ANZOS | Photonics and Optics (ANZCOP)

Contributed Oral

We propose a new class of chiral quasi-bound states in the continuum (q-BICs) operating at large oblique angles, overcoming the conventional limitation of near-Γ, normal-incidence resonances. The approach exploits the enhanced radiative density of states near the light cone to realize high-Q resonances with nearly pure circular polarization in momentum regions approaching grazing emission....

215. Band Engineering in Polaritonic Metasurfaces Using a Multimode Framework

Polina Pantiukhina (Research School of Physics, Australian National University)

10/12/2026, 12:00

ANZOS | Photonics and Optics (ANZCOP)

Contributed Oral

Polaritonic van der Waals metasurfaces provide a versatile platform for compact metaphotonic devices, including topological photonic circuitry, chiral light sources, and nonlinear optics. Their functionality relies on the coexistence of strong exciton-photon coupling, large oscillator strengths, deeply subwavelength thicknesses, and symmetry-controlled band topology. However, the design of...

435. Metasurface polarisation-entanglement distribution with orbital angular momentum multiplexing

Saniya Shinde (ARC Center of Excellence for Transformative Meta-Optical Systems (TMOS), Department of Electronic Materials Engineering, Research School of Physics, Australian National University, Canberra, ACT 2601, Australia; Institute of Applied Physics, Abbe Center of Photonics, Friedrich Schiller University Jena, Albert-Einstein-Straße 15, 07745 Jena, Germany)

10/12/2026, 12:15

ANZOS | Photonics and Optics (ANZCOP)

Contributed Oral

Multiparty quantum networks require distribution of entanglement amongst various users. Currently, such networks operating with photons over free space require bulky optical components with interferometric stability for entanglement multiplexing [1]. For a broader use of such technologies, there is a need to integrate the functionality into a compact integrated platform. Recently, linear...