303 citations · 1.4k across the 79 of their papers we have counts for
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B-spline freeform surface tailoring for prescribed irradiance based on differentiable ray-tracing
Haoqiang Wang, Zihan Zang, Yunpeng Xu +3
A universal and flexible design method for freeform surface that can modulate the distribution of an zero-étendue source to an arbitrary irradiance distribution is a significant ch…
Tri-Functional Metasurface for Phase, Amplitude, and Luminescence Control
Soroosh Daqiqeh Rezaei, Zhaogang Dong, Hao Wang +7
In optical anti-counterfeiting, several distinct optically variable devices (OVDs) are often concurrently employed to compensate for the insufficient security level of constituent…
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…
High-order Photonic Cavity Modes Enabled 3D Structural Color
Hailong Liu, Hongtao Wang, Hao Wang +8
It remains a challenge to directly print three-dimensional arbitrary shapes that exhibit structural colors at the micrometer scale. Woodpile photonic crystals (WPCs) fabricated via…
Planar multi-aperture fish-eye lens using metagrating
Zihan Zang, Haoqiang Wang, Yanjun Han +3
The design of compact optical systems with large field of view has been difficult due to the requirement of many elements or a curved focal plane to reduce off-axis aberration. We…