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Special Issue: Rare earth luminescent materials
This special issue covers a series of cutting-edge works on exploring novel rare earth luminescent materials and their applications in lighting, display, information storage, sensing, and bioimaging as well as therapy.

Hongjie ZhangHong Zhang
Editorial
Open Access
02 Sept 2022

Shipborne oceanic high-spectral-resolution lidar for accurate estimation of seawater depth-resolved optical properties
Shipborne oceanic high-spectral-resolution lidar for accurate estimation of seawater depth-resolved optical properties

Yudi ZhouYang ChenDong Liu
Article
Open Access
02 Sept 2022

Light People: Professor Baohua Jia
Siqiu Guo
articles
Open Access
31 Aug 2022

Creating and moving nanoantenna cold spots anywhere
Alex J. VernonFrancisco J. Rodríguez-Fortuño
Article
Open Access
30 Aug 2022

NaBiF4-based hollow upconversion nanoparticles for temperature sensing
Lining Sun
News & Views
Open Access
25 Aug 2022

Upconversion FRET quantitation: the role of donor photoexcitation mode and compositional architecture on the decay and intensity based responses
Upconverting FRET assays show complex behavior of luminescence kinetics and spectra for various NPs chemical architectures and excitation schemes.

Agata M. KotulskaAleksandra Pilch-WróbelArtur Bednarkiewicz
Article
Open Access
19 Aug 2022

A multichannel optical computing architecture for advanced machine vision
We develop Monet: a multichannel optical neural network architecture for a universal multiple-input multiple-channel optical computing based on a novel projection-interference-prediction framework, solving real-world advanced machine vision tasks optically.

Zhihao XuXiaoyun YuanLu Fang
Article
Open Access
18 Aug 2022

Fourier Imager Network (FIN): A deep neural network for hologram reconstruction with superior external generalization
A deep learning framework, termed Fourier Imager Network (FIN), performs end-to-end phase recovery and image reconstruction from raw holograms, achieving unprecedented success in generalization to new types of samples.

Hanlong ChenLuzhe HuangAydogan Ozcan
Article
Open Access
16 Aug 2022

Frequency comb-to-comb stabilization over a 1.3-km free-space atmospheric optical link
Our remote comb-to-comb stabilization expedites diverse long-distance ground-to-ground or ground-to-satellite applications for 6 THz bandwidth molecule spectroscopy and microwaves generation with phase noise of −80 dBc Hz–1 at 1 Hz.

Jaewon YangDong IL LeeSeung-Woo Kim
Article
Open Access
12 Aug 2022

An excellent deep-ultraviolet birefringent material based on [BO2]∞ infinite chains
Fangfang ZhangXinglong ChenShilie Pan
Article
Open Access
12 Aug 2022