Advanced Methods in Exploring Light–Matter Interactions and Nonlinear Effects Optics Applications

A special issue of Photonics (ISSN 2304-6732).

Deadline for manuscript submissions: 30 November 2025 | Viewed by 1666

Special Issue Editors


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Guest Editor
Center for Advanced Laser Technology (CALT), Hebei University of Technology, Tianjin 300401, China
Interests: nonlinear optics; high-power laser; stimulated Brillouin scattering; solid-state laser; spectral imaging; microimaging
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Guest Editor
Center for Advanced Laser Technology (CALT), Hebei University of Technology, Tianjin 300401, China
Interests: nonlinear optical microscopy; coherent anti-Stokes Raman spectrum; ultrafast laser spectroscopy; measurement of temperature and concentration in high-temperature turbulent combustion field

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Guest Editor
School of Integrated Circuit Science and Engineering, Beihang University, Xueyuan Str 37, Haidian District, Beijing 100191, China
Interests: millimeter-wave; terahertz; system-on-chip; biomedical communication systems; millimeter-wave/terahertz phased arrays; RF chips; on-chip/AiP antennas; low-power implantable chips; implantable/wearable body communication; embedded systems
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Competence Center for Biomedical Laser Systems (BIOLAS), Laboratory of Measurement and Sensor System Technique (MST), Technische Universität Dresden, Helmholtzstrasse 18, 01069 Dresden, Germany
Interests: fiber-optics; digital holography; wavefront shaping; deep learning; quantitative phase imaging
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Key Laboratory on Adaptive Optics, Institute of Optics and Electronics, Chinese Academy of Science, Chengdu, China
Interests: adaptive optics; wavefront sensing; laser communication; flow measurements
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
Scarcelli Lab, Fischell Department of Bioengineering, University of Maryland, 3102 A. James Clark Hall, College Park, MD 20742, USA
Interests: Brillouin spectroscopy; nonlinear optics; stimulated Brillouin scattering; biomechanical imaging; microimaging

Special Issue Information

Dear Colleagues,

The investigation of light–matter interactions and nonlinear optics has been a research hotspot in recent years. This research has gained significant momentum owing to its pivotal role in advancing technologies across various fields, such as solid-state laser, nonlinear optical microscopy, high-energy physics, and millimeter-wave/terahertz system-on-chip. Its aim is to understand the new application of light–matter interactions and nonlinear optics. As an example, the development of advanced imaging and spectroscopic methods has further propelled our ability to characterize and engineer materials to an unprecedented level. The scope of this Special Issue includes the latest advances in experimental, theoretical, and computational aspects of light–matter interactions and nonlinear effects optics.

Here, we invite original research articles and reviews on these topics. We encourage contributions that explore new aspects of these areas, including but not limited to the following:

  • Solid-state laser technology and their applications;
  • Nonlinear optics and high-power laser interactions;
  • Nonlinear optical microscopy;
  • AO systems and component technologies;
  • Machine learning applications in optical systems;
  • Wavefront shaping for enhanced optical performance;
  • Computational imaging techniques in nonlinear optics;
  • Millimeter-wave/terahertz system-on-chip.

We believe this Special Issue will offer a thorough overview of the latest advances in high-power lasers, light–matter interactions, and related fields. We eagerly anticipate your contributions.

Dr. Zhaohong Liu
Prof. Dr. Yuanqin Xia
Dr. Xiao Fang
Dr. Jiawei Sun
Dr. Zeyu Gao
Dr. Jiarui Li
Guest Editors

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Keywords

  • high-power lasers
  • nonlinear optics
  • light–matter interactions
  • solid-state lasers
  • Brillouin microscopy
  • Raman spectroscopy
  • radar detection
  • machine learning in optical systems
  • wavefront shaping
  • computational imaging
  • adaptive optics
  • fiber-optic systems
  • laser-based sensing
  • optical imaging techniques

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Published Papers (2 papers)

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Research

8 pages, 1537 KiB  
Communication
Ag-Grid and Ag-Nanowires Hybrid Transparent Electrodes to Improve Performance of Flexible Organic Light-Emitting Devices
by Hao Yang, Yangang Bi, Shirong Wang, Congfang Wang, Haipeng Wang, Gaoda Ye and Jing Feng
Photonics 2025, 12(3), 272; https://doi.org/10.3390/photonics12030272 - 16 Mar 2025
Cited by 1 | Viewed by 411
Abstract
Flexible transparent conductive electrodes, with high optical transmittance, electrical conductivity, and flexible stability, still challenge the commercial development of flexible organic light-emitting devices (OLEDs). In this work, a novel Ag-grid and Ag-nanowire (Ag-grid/AgNW) hybrid transparent conductive film was proposed with extraordinary optoelectronic and [...] Read more.
Flexible transparent conductive electrodes, with high optical transmittance, electrical conductivity, and flexible stability, still challenge the commercial development of flexible organic light-emitting devices (OLEDs). In this work, a novel Ag-grid and Ag-nanowire (Ag-grid/AgNW) hybrid transparent conductive film was proposed with extraordinary optoelectronic and mechanical performance. The hybrid film exhibited a low resistivity of 9 Ω/sq and a high transparency of 67.9% at the wavelength of 550 nm, as well as outstanding mechanical robustness by surviving over 5000 bending cycles. By applying the proposed Ag-grid/AgNW hybrid electrode in flexible OLEDs, the electroluminescence performance, flexibility, and mechanical reliability of the devices were significantly improved. Full article
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10 pages, 3490 KiB  
Communication
Laser Linewidth Measurement Using an FPGA-Based Delay Self-Homodyne System
by Fanqi Bu, Zhongan Zhao, Longfei Li, Cunwei Zhang, Tie Li, Yaoyao Qi, Jie Ding, Bingzheng Yan, Chen Zhao, Yulei Wang, Zhiwei Lu, Yu Ding and Zhenxu Bai
Photonics 2025, 12(3), 203; https://doi.org/10.3390/photonics12030203 - 26 Feb 2025
Viewed by 472
Abstract
Narrow-linewidth lasers play a crucial role in nonlinear optics, atomic physics, optical metrology, and high-speed coherent optical communications. Precise linewidth measurement is essential for assessing laser noise characteristics; however, conventional methods are often bulky, costly, and unsuitable for integrated applications. This paper presents [...] Read more.
Narrow-linewidth lasers play a crucial role in nonlinear optics, atomic physics, optical metrology, and high-speed coherent optical communications. Precise linewidth measurement is essential for assessing laser noise characteristics; however, conventional methods are often bulky, costly, and unsuitable for integrated applications. This paper presents a compact and cost-effective delay self-homodyne system for laser linewidth measurement, leveraging a field-programmable gate array (FPGA)-based data acquisition circuit. By employing fast Fourier transform (FFT) analysis, the system achieves high-precision linewidth measurement in the kHz range. Additionally, by optimizing the fiber length, the system effectively suppresses low-frequency and 1/f noise, providing an integrated and efficient solution for advanced laser characterization with enhanced performance and reduced cost. Full article
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