Upconversion-pumped femtosecond thulium laser at 2309   nm mode-locked by a GaSb-based SESAM
We report on a femtosecond thulium laser operating on the ^3H_4 → ^3H_5 transition with upconversion pumping around ... (Source: Optics Express)
Source: Optics Express - April 9, 2024 Category: Physics Authors: Aleksey Tyazhev Ji Eun Bae Marco Gaulke Pavel Loiko Jonas Heidrich Matthias Golling Said Idlahcen Lauren Guillemot Thomas Godin Patrice Camy Ursula Keller Ammar Hideur Source Type: research

Breaking the limitations with sparse inputs by variational frameworks (BLIss) in terahertz super-resolution 3D reconstruction
Data acquisition, image processing, and image quality are the long-lasting issues for terahertz (THz) 3D reconstructed imaging. Existing ... (Source: Optics Express)
Source: Optics Express - April 8, 2024 Category: Physics Authors: Yiyao Zhang Ke Chen Shang-Hua Yang Source Type: research

Ultra-high Q resonances based on zero group-velocity modes accompanied by bound states in the continuum in 2D photonic crystal slabs
Optical resonators made of 2D photonic crystal (PhC) slabs provide efficient ways to manipulate light at the nanoscale through small ... (Source: Optics Express)
Source: Optics Express - April 8, 2024 Category: Physics Authors: Jun Zhang Beibei Dong Yajing Wang Mengting Li Yufang Liu Hai Lu Kun Yu Source Type: research

Physical layer security scheme for key concealment and distribution based on carrier scrambling
The purpose of this study is to present a physical layer security scheme for key concealment and distribution based on carrier scrambling. ... (Source: Optics Express)
Source: Optics Express - April 8, 2024 Category: Physics Authors: Zongheng Weng Jianxin Ren Bo Liu YaYa Mao Xiangyu Wu Xiumin Song Shuaidong Chen Yiming Ma Nan Zhao Yongyi Yu Yongfeng Wu Source Type: research

Two-dimensionally high AR performance beam scanning utilizing randomly-rotated single-PIN-diode elements for circularly-polarized programmable metasurface
In this paper, we introduce a novel technique that utilizes randomly rotated elements (RREs) for the cross-polarization and axial ratio ... (Source: Optics Express)
Source: Optics Express - April 8, 2024 Category: Physics Authors: Xiangjin Ma Jiaqi Han Heng Zhou Tianguang Lv Yajie Mu Haixia Liu Long Li Source Type: research

Ultra-high sensitivity weak magnetic field detecting magnetic fluid surface plasmon resonance sensor based on a single-hole fiber
An ultra-high sensitivity weak magnetic field detecting magnetic fluid surface plasmon resonance (SPR) sensor based on a single-hole fiber ... (Source: Optics Express)
Source: Optics Express - April 8, 2024 Category: Physics Authors: Haihao Fu Yuying Guo Wei Gao Shuqin Lou Paul K. Chu Zhufeng Sheng Source Type: research

Cross-domain colorization of unpaired infrared images through contrastive learning guided by color feature selection attention
In challenging lighting conditions, infrared detectors have become vital tools for enhancing visual perception, overcoming the limitations ... (Source: Optics Express)
Source: Optics Express - April 8, 2024 Category: Physics Authors: Tong Jiang Xiaodong Kuang Sanqian Wang Tingting Liu Yuan Liu Xiubao Sui Qian Chen Source Type: research

On-chip photonic convolution by phase-change in-memory computing cells with quasi-continuous tuning
Matrix multiplication acceleration by on-chip photonic integrated circuits (PICs) is emerging as one of the attractive and promising ... (Source: Optics Express)
Source: Optics Express - April 8, 2024 Category: Physics Authors: Jigeng Sun Shaolin Zhou Ziyang Ye Bo Hu Yi Zou Source Type: research

Solution to the issue of high-order diffraction images for cylindrical computer-generated holograms
The cylindrical computer-generated hologram (CCGH), featuring a 360 ° viewing zone, has garnered widespread attention. However, the ... (Source: Optics Express)
Source: Optics Express - April 8, 2024 Category: Physics Authors: Jie Zhou Lei Jiang Guangwei Yu Jiabao Wang Yang Wu Jun Wang Source Type: research

1064 nm rotational Raman polarization lidar for profiling aerosol and cloud characteristics
The vertical profiles of aerosol or mixed-phase cloud optical properties (e.g. extinction coefficient) at 1064?nm are difficult to obtain ... (Source: Optics Express)
Source: Optics Express - April 8, 2024 Category: Physics Authors: Longlong Wang Zhenping Yin Tong Lu Yang Yi Xiangyu Dong Yaru Dai Zhichao Bu Yubao Chen Xuan Wang Source Type: research

Enhancing light extraction efficiency of the inclined-sidewall-shaped DUV micro-LED array by hybridizing a nanopatterned sapphire substrate and an air-cavity reflector
In this work, we hybridize an air cavity reflector and a nanopatterned sapphire substrate (NPSS) for making an inclined-sidewall-shaped ... (Source: Optics Express)
Source: Optics Express - April 8, 2024 Category: Physics Authors: Zhaoqiang Liu Tong Jia Chunshuang Chu Kangkai Tian Chao Fan Yonghui Zhang Zi-Hui Zhang Source Type: research

Multiple plateaus of high-sideband generation from Floquet matters
We theoretically report that high-order sideband generation (HSG) from Floquet matters driven by a strong terahertz light while engineered ... (Source: Optics Express)
Source: Optics Express - April 8, 2024 Category: Physics Authors: Yu-Xuan Chen Gan Wang Mingjie Li Tao-Yuan Du Source Type: research

Dissipative Kerr soliton generation at 2 μ m in a silicon nitride microresonator
Chip-scale optical frequency combs enable the generation of highly-coherent pulsed light at gigahertz-level repetition rates, with ... (Source: Optics Express)
Source: Optics Express - April 8, 2024 Category: Physics Authors: Anamika Nair Karunakaran Marco Clementi Christian Lafforgue Ozan Yakar Anton Stroganov Poul Varming Minhao Pu Kresten Yvind Patrick Montague Camille-Sophie Br è s Source Type: research

Magnomechanically induced transparency and tunable slow-fast light via a levitated micromagnet
In this paper, we theoretically investigate the magnomechanically induced transparency (MIT) phenomenon and slow-fast light propagation in ... (Source: Optics Express)
Source: Optics Express - April 8, 2024 Category: Physics Authors: Sahar Bayati Malek Bagheri Harouni Ali Mahdifar Source Type: research

Observation of quantum nonlocality in Greenberger-Horne-Zeilinger entanglement on a silicon chip
Nonlocality is the defining feature of quantum entanglement. Entangled states with multiple particles are of crucial importance in ... (Source: Optics Express)
Source: Optics Express - April 8, 2024 Category: Physics Authors: Leizhen Chen Bochi Wu Liangliang Lu Kai Wang Yanqing Lu Shining Zhu Xiao-Song Ma Source Type: research