ARC Centre of Excellence for Transformative Meta-Optical Systems (TMOS)

High resolution bio-imaging via inverse design of metasurfaces

Niken Priscilla, Neuton Li, Lukas Wesemann, Shaban Sulejman, Jiajun Meng, Rajour Tanyi Ako, Madhu Bhaskaran, Andrey Sukhorukov, Ann Roberts

2024-03-08

Metasurfaces with angular sensitivity have been shown to provide a platform for developing an ultra-compact phase imaging system. ..

Instant-in-Air Liquid Metal Printed Ultrathin Tin Oxide for High-Performance Ammonia Sensors

Chung Kim Nguyen, Patrick D Taylor, Ali Zavabeti, Hamidah Alluhaybi, Samira Almalki, Xiangyang Guo, Mehmood Irfan, Mohammad Al Kobaisi, Samuel J Ippolito, Michelle JS Spencer, Sivacarendran Balendhran, Ann Roberts, Torben Daeneke, Kenneth B Crozier, Ylias Sabri, Nitu Syed

2024-01-01

Liquid metal-based printing techniques are emerging as an exemplary platform for harvesting non-layered 2D materials with a thickn..

Thin film notch filters as platforms for biological image processing

SB Sulejman, N Priscilla, L Wesemann, WSL Lee, J Lou, E Hinde, TJ Davis, A Roberts

2023-12-01

Many image processing operations involve the modification of the spatial frequency content of images. Here we demonstrate object-p..

Meta-optics for new approaches to all-optical image processing

Lukas Wesemann, Shaban B Sulejman, Niken Priscilla, Wendy Lee, Lincoln Clark, Jon Rickett, Jingchao Song, Jieqiong Lou, Elizabeth Hinde, Timothy J Davis, Ann Roberts

2023-08-12

Meta-optical devices have emerged as promising candidates for all-optical image processing. These devices are of subwavelength siz..

Deconstructed beetles: Bilayered composite materials produce green coloration with remarkably high near-infrared reflectance

L Ospina-Rozo, N Priscilla, J Hutchison, A van de Meene, NW Roberts, D Stuart-Fox, A Roberts

2023-06-01

Beetle elytra (hardened forewings) are a promising source of inspiration to develop or enhance the performance of human-fabricated..

2-nm-Thick Indium Oxide Featuring High Mobility

CK Nguyen, A Mazumder, ELH Mayes, V Krishnamurthi, A Zavabeti, BJ Murdoch, X Guo, P Aukarasereenont, A Dubey, A Jannat, X Wei, VK Truong, L Bao, A Roberts, CF McConville, S Walia, N Syed, T Daeneke

2023-03-24

Thin film transistors (TFTs) are key components for the fabrication of electronic and optoelectronic devices, resulting in a push ..

An investigation of evanescent wave-induced fluorescence spectroscopy for exploring high refractive index media

Subhajit Chakraborty, Yang Xu, Ann Roberts, Debabrata Goswami, Trevor A Smith

2023-01-01

Evanescent wave-induced fluorescence spectroscopy (EWIFS) is a widely used technique for probing the interfacial behavior of diffe..

Broadband Multichannel Cylindrical Vector Beam Generation by a Single Metasurface

D Wen, K Pan, J Meng, X Wu, X Guo, P Li, S Liu, D Li, B Wei, X Xie, D Yang, J Zhao, KB Crozier

2022-10-01

Beams with spatially-varying polarization states have been the topic of much interest recently due to the unusual ways in which th..

Real-Time Phase Imaging with an Asymmetric Transfer Function Metasurface

L Wesemann, J Rickett, TJ Davis, A Roberts

2022-05-18

The conversion of phase variations in an optical wavefield into intensity information is of fundamental importance for optical ima..

Mid-infrared spectral reconstruction with dielectric metasurfaces and dictionary learning

BJ Russell, JJ Cadusch, J Meng, D Wen, KB Crozier

2022-05-15

Mid-infrared (MIR) spectroscopy has numerous industrial applications and is usually performed with Fourier-transform infrared (FTI..

Compact Chemical Identifier Based on Plasmonic Metasurface Integrated with Microbolometer Array

J Meng, L Weston, S Balendhran, D Wen, JJ Cadusch, R Rajasekharan Unnithan, KB Crozier

2022-04-01

The identification of chemicals from their mid-infrared spectra has applications that include industrial production of chemicals, ..

Infrared Photodetectors Based on 2D Materials and Nanophotonics

J Zha, M Luo, M Ye, T Ahmed, X Yu, DH Lien, Q He, D Lei, JC Ho, J Bullock, KB Crozier, C Tan

2022-04-01

2D materials, such as graphene, transition metal dichalcogenides, black phosphorus, and tellurium, have been demonstrated to be pr..

Compact, Lightweight, and Filter-Free: An All-Si Microspectrometer Chip for Visible Light Spectroscopy

JJ Cadusch, J Meng, D Wen, VR Shrestha, KB Crozier

2022-02-16

Spectroscopic optical measurements of visible light provide important real-time information in many research and industrial settin..

Bright Mid-Wave Infrared Resonant-Cavity Light-Emitting Diodes Based on Black Phosphorus

N Gupta, H Kim, NS Azar, SZ Uddin, DH Lien, KB Crozier, A Javey

2022-02-09

The mid-wave infrared (MWIR) wavelength range plays a central role in a variety of applications, including optical gas sensing, in..

Nanophotonics enhanced coverslip for phase imaging in biology

L Wesemann, J Rickett, J Song, J Lou, E Hinde, TJ Davis, A Roberts

2021-12-01

The ability to visualise transparent objects such as live cells is central to understanding biological processes. Here we experime..

Graphene-based mid-infrared photodetectors using metamaterials and related concepts

M Ye, J Zha, C Tan, KB Crozier

2021-09-01

Graphene, a semi-metal with a gapless band structure, has been used in mid-infrared (MIR) photodetectors (PDs) for some time. Howe..

Copper Tetracyanoquinodimethane (CuTCNQ): A Metal-Organic Semiconductor for Room-Temperature Visible to Long-Wave Infrared Photodetection

S Balendhran, Z Hussain, VR Shrestha, J Cadusch, M Ye, N Sefidmooye Azar, H Kim, R Ramanathan, J Bullock, A Javey, V Bansal, KB Crozier

2021-08-18

Mid-wave and long-wave infrared (MWIR and LWIR) detection play vital roles in applications that include health care, remote sensin..

Metasurfaces 2.0: Laser-integrated and with vector field control

D Wen, KB Crozier

2021-08-01

The past decade has witnessed the rapid development of metasurfaces. In this paper, we outline our thinking on what we regard as t..

Optical Metasurfaces for Processing of Amplitude and Phase Images

L Wesemann, J Rickett, J Song, TJ Davis, A Roberts

2021-05-01

Optical Metasurfaces for Processing of Amplitude and Phase Images

Lukas Wesemann, Jon Rickett, Jingchao Song, Timothy J Davis, Ann Roberts

2021-01-01

We investigate the utilization of plasmonic resonant waveguide gratings for all-optical image processing in transmission. We exper..

On-chip optical image processing with plasmonic metasurfaces

L Wesemann, T Davis, A Roberts

2020-08-01

We propose the utilization of plasmonic resonant wave-guide gratings for ultracompact image processing in transmission. We experim..