Hyperspectral optical orbital angular momentum modulation from tunable structured waveplates
Shaping the orbital angular momentum of optical pulses in the spectral domain is a means of managing light in space and time that offers ... (Source: Optics Letters)
Source: Optics Letters - April 10, 2024 Category: Physics Authors: Vagharshak Hakobyan Etienne Brasselet Source Type: research

Dispersive wave generation in single higher-order modes of a large-core silica step-index fiber with pulse energies up to 12 nJ
The generation of light in a laser system is constrained by the gain medium, limiting the available wavelengths. We demonstrate in-fiber ... (Source: Optics Letters)
Source: Optics Letters - April 10, 2024 Category: Physics Authors: Andrea Arduin Lars Rish ø j Jesper Laegsgaard Source Type: research

Tracking bandwidth limitations for strong optical-turbulence conditions
We derive a modified fundamental tracking frequency that is applicable for beam-control systems that do not employ adaptive-optics ... (Source: Optics Letters)
Source: Optics Letters - April 10, 2024 Category: Physics Authors: Matthew Kalensky Darren Getts Mark F. Spencer Source Type: research

26.5625 Gbaud PAM-4 short-reach transmission at 75 ° C using 850 nm VCSELs with strategic oxide guiding layer positioning
This article presents an all-epitaxy approach to reduce the root mean square spectral width ( Δ λ _R M S) of 850 nm oxide-confined ... (Source: Optics Letters)
Source: Optics Letters - April 10, 2024 Category: Physics Authors: Yun-Cheng Yang Wei-Hsin Chen Chih-Chuan Chiu Chao-Hsin Wu Source Type: research

High-power, gigahertz repetition frequency self-mode-locked Ho:GdVO_4 laser resonantly pumped by a Tm-doped fiber laser
A self-mode-locked Ho:GdVO_4 laser with the GHz pulse repetition frequency oscillation near 2.06   µ m was demonstrated for the ... (Source: Optics Letters)
Source: Optics Letters - April 10, 2024 Category: Physics Authors: Panqiang Kang Xinlu Zhang Xiaofan Jing Changchang Shen Jinjer Huang Yulei Wang Zhiwei Lu Source Type: research

Nonlinear-tolerant two-dimensional distribution matcher scheme for probabilistic shaping
This Letter proposes a nonlinear-tolerant two-dimensional distribution matcher (2D-DM) scheme. It removes the corner points of ... (Source: Optics Letters)
Source: Optics Letters - April 10, 2024 Category: Physics Authors: Yanan Luo Bin Chen Qin Huang Source Type: research

Ultrabroadband two-dimensional electronic spectroscopy in the pump – probe geometry using conventional optics
We report ultrabroadband two-dimensional electronic spectroscopy (2D ES) measurements obtained in the pump – probe geometry using ... (Source: Optics Letters)
Source: Optics Letters - April 10, 2024 Category: Physics Authors: Matthew S. Barclay Nicholas D. Wright Paul Cavanaugh Ryan D. Pensack Eric W. Martin Daniel B. Turner Source Type: research

Liquid crystal wave plate operating close to 18?THz
Controlling the properties of mid- and far-infrared radiation can provide a means to transiently alter the properties of materials for ... (Source: Optics Letters)
Source: Optics Letters - April 10, 2024 Category: Physics Authors: Fabio Novelli Patrick Friebel Marta L. Murillo-Sanchez J. Michael Klopf Laura Cattaneo Source Type: research

Large and tunable optoelectronic chromatic dispersion in PIN-type photodiodes
It is known that PN-type photodiodes possess high optoelectronic chromatic dispersion (OED). Here we present a theoretical and experimental ... (Source: Optics Letters)
Source: Optics Letters - April 10, 2024 Category: Physics Authors: Ayuushi Dutta Egor Liokumovitch Ziv Glaser Shmuel Sternklar Source Type: research

Plasmonic nanosensor and pressure-induced transparency based on coupled resonator in a nanoscale system
Plasmonic nanosensors and the dynamic control of light fields are of the utmost significance in the field of micro- and nano-optics. Here, ... (Source: Optics Letters)
Source: Optics Letters - April 9, 2024 Category: Physics Authors: Zhao Chen Baixu Zhu Xinxin Ma Shijie Zhang Linhao Li Tong Li Yilin Wang Zhi-Ling Hou Source Type: research

Strategically constructed AlGaN doping barriers for efficient deep ultraviolet light-emitting diodes
Here, we propose a sandwich-like Si-doping scheme (undoped/Si-doped/undoped) in Al_0.6Ga_0.4N quantum barriers (QBs) to simultaneously ... (Source: Optics Letters)
Source: Optics Letters - April 9, 2024 Category: Physics Authors: Ziqi Zhang Qianxi Zhou Xu Liu Zhenxing Lv Bin Tang Hansong Geng Shengli Qi Shengjun Zhou Source Type: research

DAC-less PAM4 signal generation using a silicon dual-drive push – pull MZI modulator
In this study, we demonstrate DAC-less PAM-4 signal generation by driving a silicon MZI modulator based on a series push – pull ... (Source: Optics Letters)
Source: Optics Letters - April 9, 2024 Category: Physics Authors: Kaizhong Chen Hengsong Yue Jing Huang Tao Chu Source Type: research

Reconfigurable origami hologram based on deep neural networks
Reconfigurable and multifunctional metasurfaces are becoming indispensable in a variety of applications due to their capability to execute ... (Source: Optics Letters)
Source: Optics Letters - April 9, 2024 Category: Physics Authors: Kang Wang DaShuang Liao Haogang Wang Source Type: research

Tunable liquid crystal lens with symmetric bipolar operation
We describe an electrically tunable liquid crystal lens that can dynamically generate symmetric wavefront profiles. The curvature of these ... (Source: Optics Letters)
Source: Optics Letters - April 9, 2024 Category: Physics Authors: Zhanna Zemska Tigran Galstian Source Type: research

Generation of high-energy, sub-20   fs deep-UV pulses in a twin-crystal third harmonic generation scheme
Ultrashort deep ultraviolet (DUV) pulses serve as indispensable tools for investigating molecular dynamics on the femtosecond scale. ... (Source: Optics Letters)
Source: Optics Letters - April 9, 2024 Category: Physics Authors: Peter Susnjar Gabor Kurdi Paolo Cinquegrana Alexander Demidovich Ivaylo Nikolov Paolo Sigalotti Miltcho B. Danailov Source Type: research