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Photonics
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Laser-Induced Damage
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Laser-Induced Damage

A special issue of Photonics (ISSN 2304-6732). This special issue belongs to the section "Lasers, Light Sources and Sensors".

Deadline for manuscript submissions: closed (15 March 2024) | Viewed by 4751

Special Issue Editor

Prof. Dr. Ma Bin

E-Mail Website
Guest Editor
Institute of Precision Optical Engineering, Tongji University, Shanghai 200092, China
Interests: optical precision detection; strong laser-matter interaction

Special Issue Information

Dear Colleagues,

Laser damage is the basis of research on the interaction between laser and matter, and has been a concern since the laser appeared in the early 1960s. When the laser fluence exceeds the threshold of the irradiated object, the damage phenomenon will appear, and then deteriorate and reduce its service performance and lifetime. The complex dynamic process of laser damage involves multidisciplinary fields such as physics, chemistry and materials. In particular, with the construction of large-scale high-power laser devices built in many countries and the rapid development of commercial high-power lasers around the world, the research on laser-induced damage has become more interdisciplinary in scientific issues, more progressive in research methods and more urgent in user needs. Based on the exploration of laser-induced damage science and extensive market demand, this topic focuses on the basic research, key technologies and application prospects of laser-induced damage, and promotes new research developments.

This Special Issue on “Laser-Induced Damage” will welcome basic, methodological and applied cutting-edge research contributions, as regular and review papers, dealing with:

  • High-power/ultra-fast lasers and fiber lasers;
  • Laser induced damage mechanisms, modeling and simulation;
  • Optical materials, thin films and gratings;
  • Measurement and characterization;
  • Fabrication, processing technologies for high-damage-threshold elements.

Prof. Dr. Bin Ma
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Photonics is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Published Papers (4 papers)

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Research

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12 pages, 2713 KiB  
Communication
Non-Gaussian Signal Statistics’ Impact on LIBS Analysis
by Vasily N. Lednev, Pavel A. Sdvizhenskii, Dashuang Liu, Sergey V. Gudkov and Sergey M. Pershin
Photonics 2024, 11(1), 23; https://doi.org/10.3390/photonics11010023 - 27 Dec 2023
Cited by 1 | Viewed by 839
Abstract
A detailed study has been carried out to reveal signal statistics’ impact on analysis sensitivity in laser-induced breakdown spectroscopy (LIBS) measurements. For several signals measured simultaneously, it was demonstrated that space-, spectra- and time-integrated plasma emission followed a normal distribution while the spectra- [...] Read more.
A detailed study has been carried out to reveal signal statistics’ impact on analysis sensitivity in laser-induced breakdown spectroscopy (LIBS) measurements. For several signals measured simultaneously, it was demonstrated that space-, spectra- and time-integrated plasma emission followed a normal distribution while the spectra- and time-resolved LIBS signal (atomic line intensity, plasma background emissions) distribution functions were biased compared to a Gaussian distribution function. For the first time in LIBS, the impact of a non-Gaussian distribution function on the limit of detection (LOD)’s determination has been studied in detail for single-shot spectra as well as for averaged spectra. Here, we demonstrated that the non-symmetrical distribution of the LIBS signals influenced the estimated LODs, so knowledge of a LIBS signal’s distribution function provides more reliable results, and the analysis sensitivity can be wrongly estimated if Gaussian distribution is presumed. Full article
(This article belongs to the Special Issue Laser-Induced Damage)
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14 pages, 5705 KiB  
Article
A Laser Damage Threshold for Microscope Glass Slides
by Pervin Tüzün, Ömer Faruk Kadı, Fikret Yıldız, Ramiz Hamid and Humbat Nasibov
Photonics 2023, 10(9), 967; https://doi.org/10.3390/photonics10090967 - 24 Aug 2023
Viewed by 1003
Abstract
Laser-based light sources have fostered innovative developments in biomedical and biosensor fields. However, laser-induced damage to optical components is a limitation for designing and implementing highly sensitive biosensors, necessitating the development and characterization of suitable optical components. Microscope glass slides are among the [...] Read more.
Laser-based light sources have fostered innovative developments in biomedical and biosensor fields. However, laser-induced damage to optical components is a limitation for designing and implementing highly sensitive biosensors, necessitating the development and characterization of suitable optical components. Microscope glass slides are among the most extensively used optical units in this field. This study investigated the laser-induced damage threshold (LIDT) of high-quality microscope glass slides obtained from three different vendors. An S-on-1 protocol following the ISO 21254 series standards was adopted to ensure a meaningful comparative analysis. Multiple laser pulses at a constant fluence (at the three laser wavelengths most widely used in biosensors) were used for LIDT tests. An automated test bench was developed and employed to minimize the influence of human factors on the test results. The fatigue damage mechanism was observed in all the samples. The findings revealed good consistency among LIDT values within and across batches from the same vendor. However, a notable discrepancy was observed when comparing the results of slides obtained from different vendors, with threshold values differing by up to two-fold. This study emphasizes the need to carefully consider the glass material source when selecting microscope glass slides for laser-sensitive applications. Full article
(This article belongs to the Special Issue Laser-Induced Damage)
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13 pages, 3819 KiB  
Article
Effect of Dual-Pulse Temporal Shaping on Ultraviolet Nanosecond Laser Damage of Fused Silica Surface in High Fluence Regime
by Wenfeng Liu, Mingying Sun, Yajing Guo, Yiqun Shi, Yingming Xu, Zhaoyang Jiao, Zijian Cui and Jianqiang Zhu
Photonics 2022, 9(11), 834; https://doi.org/10.3390/photonics9110834 - 6 Nov 2022
Viewed by 1219
Abstract
We present the effect of dual-pulse temporal shaping on the ultraviolet nanosecond laser damage characteristics of a fused silica exit surface in a high fluence regime. The pre- and post-pulse have the opposite effects on the damage behavior at a pulse delay of [...] Read more.
We present the effect of dual-pulse temporal shaping on the ultraviolet nanosecond laser damage characteristics of a fused silica exit surface in a high fluence regime. The pre- and post-pulse have the opposite effects on the damage behavior at a pulse delay of 20 ns. The pre-pulse irradiation significantly increases the main-pulse threshold, making it much higher than that of the single-pulse threshold, while the post-pulse has little effect on the main-pulse threshold. For near-threshold damage sites, the pre-pulse reduces the average damage size and depth, making them smaller than those of the single-pulse, while the post-pulse drastically increases the average size and depth, making them much larger than those of the single-pulse. The average size of the damage site is monotonously increased from 43.6 µm to 127.9 µm with increasing post-pulse energy. For the pre-pulse with a shape factor of 0.61, the damage threshold of the main pulse increases with increasing delay and nearly stabilizes after 10 ns. The underlying mechanism of the temporal-shaping effect on laser damage is discussed based on the applied precursor modification to absorption enhancement, which could provide insights for studying ultraviolet laser damage of fused silica optics. Full article
(This article belongs to the Special Issue Laser-Induced Damage)
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Review

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18 pages, 12337 KiB  
Review
Lasers in Medicine: The Changing Role of Therapeutic Laser-Induced Retinal Damage—From de rigeuer to Nevermore
by Jeffrey K. Luttrull
Photonics 2023, 10(9), 999; https://doi.org/10.3390/photonics10090999 - 31 Aug 2023
Cited by 1 | Viewed by 1068
Abstract
For over five decades, laser-induced retinal damage (LIRD) was thought to be the necessary cost of all therapeutic effects of laser treatment for the most important causes of irreversible visual loss, the chronic progressive retinopathies (CPRs). The development of modern retinal laser therapy [...] Read more.
For over five decades, laser-induced retinal damage (LIRD) was thought to be the necessary cost of all therapeutic effects of laser treatment for the most important causes of irreversible visual loss, the chronic progressive retinopathies (CPRs). The development of modern retinal laser therapy with the discovery of “low-intensity/high-density subthreshold micropulse” laser (SDM) showed that the supposed need for LIRD represented a case of confusing association with causation. This revealed that LIRD was unnecessary and detrimental to clinical outcomes, and thus, contraindicated as the most severe complication of retinal laser treatment. SDM allowed for an understanding of the mechanism of retinal laser treatment as a physiologic reset effect, triggered by heat-shock protein (HSP) activation upregulating the unfolded protein response and restoring proteostasis by increasing protein repair by 35% in dysfunctional cells via a thermally sensitive conformational change in the K10 step of HSP activation kinetics. Because HSP activation kinetics are catalytic, even low levels (the “reset” threshold) of HSP activation result in a maximal treatment response. SDM and the study of HSP activation kinetics in the retina show that the therapeutic effects of retinal laser treatment can be fully realized without any degree of LIRD. Besides LIRD, all effects of retinal laser treatment are restorative and therapeutic, without any known adverse treatment effects. Without LIRD, the benefits of retinal laser treatment are infinitely renewable and direct treatment of the fovea is possible. Elimination of LIRD from retinal laser treatment has revolutionized the clinical potential of retinal laser treatment to broaden treatment indications to permit, for the first time, effective early and preventive treatment to reduce visual loss from the most frequent causes of irreversible visual loss worldwide, the CPRs. Full article
(This article belongs to the Special Issue Laser-Induced Damage)
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