Robust Anderson transition in non-Hermitian photonic quasicrystals
Anderson localization, i.e., the suppression of diffusion in lattices with a random or incommensurate disorder, is a fragile interference ... (Source: Optics Letters)
Source: Optics Letters - February 29, 2024 Category: Physics Authors: Stefano Longhi Source Type: research

Dynamic monitoring of oxygen partial pressure in photodynamic therapy using pump-probe-based photoacoustic tomography
In this study, we utilized ... (Source: Optics Letters)
Source: Optics Letters - February 29, 2024 Category: Physics Authors: Jiaying Xiao Xiao He Zhuojun Xie Bo Wang Source Type: research

Lateral GeSn p-i-n photodetectors on insulator prepared by the rapid melting growth method
In this work, GeSn lateral p-i-n photodetectors (PDs) on insulator were fabricated with an active GeSn layer grown by the rapid melting ... (Source: Optics Letters)
Source: Optics Letters - February 29, 2024 Category: Physics Authors: Qinxing Huang Jun Zheng Yupeng Zhu Xiangquan Liu ZhiPeng Liu Yazhou Yang Jinlai Cui Zhi Liu Yuhua Zuo Buwen Cheng Source Type: research

Matched dielectric slot waveguide as an all-dielectric terahertz magnetic dipole
We observe that the modal field distribution of a dielectric slot waveguide closely resembles a magnetic dipole antenna. Such an aperture ... (Source: Optics Letters)
Source: Optics Letters - February 29, 2024 Category: Physics Authors: Daniel Headland Ashish Kumar Harrison Lees Withawat Withayachumnankul Guillermo Carpintero Source Type: research

Configurable SNAP microresonators induced by axial pre-strain-assisted CO_2 laser exposure
Flexible engineering of the complex shapes of the surface nanoscale axial photonics (SNAP) bottle microresonators (SBMs) is challenging for ... (Source: Optics Letters)
Source: Optics Letters - February 29, 2024 Category: Physics Authors: Qi Yu Zhenxiang Xu Zuowei Xu Yulong Wang Haosen Li Qi Miao Hongtao Li Xuewen Shu Liang Lu Source Type: research

Broadband ASE source-enabled self-homodyne DA-RoF fronthaul using cascaded SOAs and a multicore fiber
Broadband amplified spontaneous emission (ASE) light sources are recognized for their cost-effective generation. However, their inherent ... (Source: Optics Letters)
Source: Optics Letters - February 29, 2024 Category: Physics Authors: Jingjing Lin Chenbo Zhang Yixiao Zhu Xu Liu Weisheng Hu Zhangyuan Chen Weiwei Hu Xiaopeng Xie Source Type: research

Polarized emission of Cs_3Cu_2I_5 nanowires embedded in nanopores of an anodic aluminum oxide template
Due to the intrinsic polarized emission property, polarized emissive materials with anisotropic nanostructures are expected to be potential ... (Source: Optics Letters)
Source: Optics Letters - February 29, 2024 Category: Physics Authors: Min Wang Kunlin Chen Lingling Xie Yafeng Wu Xiyao Chen Ning Lv Fang Zhang Yongtian Wang Bingkun Chen Source Type: research

Reconfigurable integrated photonic filters for optical signal processing using a silicon photonic platform
We present a systematic photonic filter design approach by deploying pole-zero optimization. The filter transfer function is derived from ... (Source: Optics Letters)
Source: Optics Letters - February 29, 2024 Category: Physics Authors: Ranjan Das Keru Chen Yanran Xie Andrew P. Knights Source Type: research

Sub-gigahertz bandwidth all-optical tunable differentiator with high-energy efficiency based on a micro-ring resonator
We propose and demonstrate a tunable fractional-order photonic differentiator (DIFF) that can process input pulses with a sub-gigahertz ... (Source: Optics Letters)
Source: Optics Letters - February 29, 2024 Category: Physics Authors: Liao Ye Zhaoyang Zhang Haoran Ma Hui Yu Yuehai Wang Jianyi Yang Source Type: research

Highly efficient single-layer graphene electro-absorption modulator
We propose a single-layer graphene electro-absorption modulator (EAM) with an angled waveguide sidewall. By utilizing the hybridization of ... (Source: Optics Letters)
Source: Optics Letters - February 29, 2024 Category: Physics Authors: Hao Zhang Zhuang Ma Lutong Cai Lin Zhang Source Type: research

Digitization method for a photonic analog-to-digital converter with phase-shifted optical quantization
This Letter proposes a novel, to the best of our knowledge, matrix digitization method for a photonic analog-to-digital converter with ... (Source: Optics Letters)
Source: Optics Letters - February 29, 2024 Category: Physics Authors: Bowen Zhang Jifang Qiu Qiuyan Li Yijun He Ran Tao Yan Li Jian Wu Source Type: research

Sensitivity-enhanced strain sensor based on a shape-modulated multimode fiber
In this Letter, we demonstrate a sensitivity-enhanced strain sensor based on a shape-modulated multimode fiber (MMF). In contrast to ... (Source: Optics Letters)
Source: Optics Letters - February 28, 2024 Category: Physics Authors: Zhiyuan Zhao Xinruo Li Shihao Yan Ke Tian Xin Wang Haiyan Zhao Elfed Lewis Gerald Farrell Pengfei Wang Source Type: research

Frequency selective surface filters with high-quality factors based on a Fano resonance
In this work, we propose a design method of the narrow passband filter with a high Q-factor based on a Fano resonance. A single-layer ... (Source: Optics Letters)
Source: Optics Letters - February 28, 2024 Category: Physics Authors: Dongzhi Shan Jinsong Gao Naitao Song Nianxi Xu Yi Zhao Hai Liu Yang Tang Source Type: research

Phase-matching-free ultrashort laser pulse characterization from a transient plasma lens
A phase-matching-free ultrashort pulse retrieval based on the defocusing of a laser-induced plasma is presented. In this technique, a pump ... (Source: Optics Letters)
Source: Optics Letters - February 28, 2024 Category: Physics Authors: R. K. Bhalavi P. B é jot A. Leblanc A. Dubrouil F. Billard O. Faucher E. Hertz Source Type: research

Miniaturized guided-mode resonance laser based on a one-dimensional finite heterostructure cavity
Lasers based on the resonant nanostructures have attracted much attention due to their low threshold and compact dimensions. Guided-mode ... (Source: Optics Letters)
Source: Optics Letters - February 28, 2024 Category: Physics Authors: Linyong Qian Xin Zhang Zhengweiyi Yang Shuozhe Xu Yun Qiu Kangni Wang Source Type: research