204 citations · 328 across the 11 of their papers we have counts for
12 papers
Sublime Transfer Printing of Three-Dimensional Nanostructure Ensembles
Lei Chen, Hao Wang, Wang Zhang +11
High-resolution three-dimensional (3D) nanostructures for visible-light photon manipulation provide unique and bespoke capabilities in optics and photonics. However subwavelength n…
Enhancing Volumetric Optical Chirality through 2D-3D Structural Design Evolution
Chia-Te Chang, Xiaoyan Zhou, Dmitrii Gromyko +6
Circular dichroism (CD) sensing plays a pivotal role in probing molecular chirality in biomedical sciences. However, engineering superchiral electromagnetic fields that can reliabl…
Encoding orbital angular momentum of light in space with optical catastrophes
Xiaoyan Zhou, John You En Chan, Chia-Te Chang +6
Light beams carrying orbital angular momentum (OAM) possess an unbounded set of orthogonal modes, offering significant potential for optical communication and security. However, ex…
Arbitrary Engineering of Spatial Caustics with 3D-printed Metasurfaces
Xiaoyan Zhou, Hongtao Wang, Shuxi Liu +6
Caustics occur in diverse physical systems, spanning the nano-scale in electron microscopy to astronomical-scale in gravitational lensing. As envelopes of rays, optical caustics re…
3D Printed Multilayer Structures for High Numerical Aperture Achromatic Metalenses
Cheng-Feng Pan, Hao Wang, Hongtao Wang +8
Flat optics consisting of nanostructures of high-refractive-index materials produce lenses with thin form factors that tend to operate only at specific wavelengths. Recent attempts…
Colorful Optical Vortices with White Light Illumination
Hongtao Wang, Hao Wang, Qifeng Ruan +8
The orbital angular momentum (OAM) of light holds great promise for applications in optical communication, super-resolution imaging, and high-dimensional quantum computing. However…
Full Geometric Control of Hidden Color Information in Diffraction Gratings under Angled White Light Illumination
John You En Chan, Qifeng Ruan, Hongtao Wang +5
Under white light illumination, gratings produce an angular distribution of wavelengths dependent on the diffraction order and geometric parameters. However, previous studies of gr…
Overcoming Van der Waals Forces in reconfigurable nanostructures
Wang Zhang, Hao Wang, Alvin T. L. Tan +11
Reconfigurable metamaterials require constituent nanostructures to demonstrate switching of shapes with external stimuli. For generality, such nanostructures would touch and stick…
Reconfiguring colours of single relief structures by directional stretching
Qifeng Ruan, Wang Zhang, Hao Wang +7
Colour changes can be achieved by straining photonic crystals or gratings embedded in stretchable materials. However, the multiple repeat units and the need for a volumetric assemb…
High-resolution light field prints by nanoscale 3D printing
John You En Chan, Qifeng Ruan, Menghua Jiang +5
A light field print (LFP) displays three-dimensional (3D) information to the naked-eye observer under ambient white light illumination. Changing perspectives of a 3D image are seen…
Painting with Hue, Saturation, and Brightness Control by Nanoscale 3D Printing
Hao Wang, Qifeng Ruan, Hongtao Wang +7
Varying only the in-plane or out-of-plane dimensions of nanostructures produces a wide range of colourful elements in metasurfaces and thin films. However, achieving shades of grey…
Structural Multi-Colour Invisible Inks with Submicron 4D Printing of Shape Memory Polymers
Wang Zhang, Hao Wang, Hongtao Wang +9
Four-dimensional (4D) printing of shape memory polymer (SMP) imparts time responsive properties to 3D structures. Here, we explore 4D printing of a SMP in the submicron length scal…