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Journal articles on the topic 'A laser'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Sara, Abdul Hussien, and Mahdi Salih Abdul-Kareem. "Absorption Activity Investigation of Saturable Absorber for Dual Wavelengths in Laser Passive Q-Switching System." Indian Journal of Science and Technology 17, no. 6 (2024): 577–82. https://doi.org/10.17485/IJST/v17i6.2822.

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Abstract <strong>Objective:</strong> The absorption activity of saturable absorber material (Cr+4: YAG) for dual wavelengths (1.064 μm and 0.946 μm), simultaneously generated in same passive Q-switching system, has been investigated. <strong>Methods:</strong> This study utilized the mathematical model that was used in our previous study. Rung-Kutta—Fehelberge numerical method has been used to solve this mathematical model. Nd+3: YAG used as an effective medium and Cr+4: YAG used as a saturable absorber in the laser passive Q-switching optical system.<strong> Fin

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2

Bösenberg, Jens, and Holger Linné. "Laser remote sensing of the planetary boundary layer." Meteorologische Zeitschrift 11, no. 4 (2002): 233–40. http://dx.doi.org/10.1127/0941-2948/2002/0011-0233.

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3

Dastjerdi, Mohammad H., and H. Kaz Soong. "LASEK (laser subepithelial keratomileusis)." Current Opinion in Ophthalmology 13, no. 4 (2002): 261–63. http://dx.doi.org/10.1097/00055735-200208000-00014.

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4

Lieberman, David H. "Teaching laser principles with nitrogen laser pumped dye lasers." Journal of Laser Applications 8, no. 6 (1996): 325–28. http://dx.doi.org/10.2351/1.4745439.

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5

Yudha, Ryan. "Teknologi APLIKASI DIODA LASER BIRU PADA LASER WEAPON." Jurnal Telkommil 3, Oktober (2022): 50–59. http://dx.doi.org/10.54317/kom.v3ioktober.296.

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Lasera (light amplification by simulated emission of radiation) pertama kali aditemukan padaa abad ke-20 dan digunakan untuk elektronik dan kepentingan militer dengan berbagaia perkembangan dan inovasia lainnya, laser sendiri pada abada ke-20 disebut (quenta) yaitu bentuk dari suatua energi frekuensi radiasi yang saling berhubungan, laser sendiri merupakan efek pengunaana mekanika kuantumw yang terdirii dari panjanga gelombang yang sama dengan memanfaatkanq radiasi .Tujuan dalam penelitianq ini, digunakan untuk pengujian senjata laser dioda berkekuatan dan berkecepatan tinggi yang terdiri dala

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6

Dr, Maj Summerdeep Kaur, Lt Col Sonali Sharma Dr, and Maj Pankaj Awasthi Dr. "CLINICAL EVALUATION OF EFFECTS OF LOW-LEVEL LASERS ON PAIN DURING CAVITY PREPARATION." International Journal of Research - Granthaalayah 6, no. 10 (2018): 81–86. https://doi.org/10.5281/zenodo.1475397.

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Aim: To study the effects of low level laser on pain during cavity preparation. Background: Laser irradiation stabilizes the nerve membrane through an increase in adenosine triphosphate (ATP) production and enhanced redox system of the cell. Dental pulp is innervated by non- myelinated C fibres. Laser irradiation reduces the conduction of Ad and C fibres (small diameter fibres), both of which transmit nociceptive pain. The stabilization of the nerve membrane increases neural latency and decreases pain transmission. This study explores whether preirradiation with laser reduces pain perception d

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7

Zhang, Xiaoqiang, Guanghao Rui, Yong Xu, et al. "Multi-layer magnetic recording driven by a tunable laser." Chinese Optics Letters 18, no. 10 (2020): 102501. http://dx.doi.org/10.3788/col202018.102501.

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8

Sanborn, Timothy A. "LASER ANGIOPLASTY WITH LASERPROBES, LASER BALLOON CATHETERS, AND EXCIMER LASERS." JOURNAL OF JAPAN SOCIETY FOR LASER SURGERY AND MEDICINE 10, no. 3 (1989): 23–34. http://dx.doi.org/10.2530/jslsm1980.10.3_23.

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9

Kim, J. W., D. Y. Shen, J. K. Sahu, and W. A. Clarkson. "Fiber-Laser-Pumped Er:YAG Lasers." IEEE Journal of Selected Topics in Quantum Electronics 15, no. 2 (2009): 361–71. http://dx.doi.org/10.1109/jstqe.2009.2010248.

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10

Peavy, George M. "Lasers and laser–tissue interaction." Veterinary Clinics of North America: Small Animal Practice 32, no. 3 (2002): 517–34. http://dx.doi.org/10.1016/s0195-5616(02)00003-7.

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11

MIZUNO, Koji, Kunioki MIMA, and Shoichi ONO. "Tunable lasers. Free electron laser." Review of Laser Engineering 17, no. 11 (1989): 749–58. http://dx.doi.org/10.2184/lsj.17.11_749.

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12

LESHIN, BARRY, and DUANE C. WHITAKER. "LASERS: Carbon Dioxide Laser Matricectomy." Journal of Dermatologic Surgery and Oncology 14, no. 6 (1988): 608–11. http://dx.doi.org/10.1111/j.1524-4725.1988.tb03386.x.

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13

Tarasenko, V. F., S. E. Kunts, S. V. Mel'chenko, A. N. Panchenko, and V. S. Skakun. "Excimer lasers and laser systems." Applied Physics A: Materials Science & Processing 69, no. 7 (1999): S323—S325. http://dx.doi.org/10.1007/s003390051409.

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14

KAKEHATA, Masayuki, Hideo HIROSE, Masanobu YAMANAKA, et al. "CLEO/QELS '92 REPORT III. Gas Lasers, X-ray Lasers, Laser Fusion, Laser Spectroscopy." Review of Laser Engineering 20, no. 7 (1992): 572–87. http://dx.doi.org/10.2184/lsj.20.7_572.

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15

Journal, Baghdad Science. "A comparative study of the effects of argon laser and continuous Nd: YAG laser on blood vessel." Baghdad Science Journal 7, no. 1 (2010): 113–18. http://dx.doi.org/10.21123/bsj.7.1.113-118.

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Several types of laser are used in experimental works in order to study the effects of laser on blood vessel. They differ from each other by a lot of properties mainly in wavelength, energy of the laser and pulse duration. In this study argon laser (488 nm- 514 nm) and continuous Nd: YAG laSer (1064 nm), have been applied to 50 samples of sheep blgod tesselS. Histologically, tha results of the study were different According to the txpe of L`sar used; apgon larer had distrabtave effects on $he blood vessal while continuous Nd: YAG laser Appeaped to be the safesd one on the blmod vessel architec

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16

Waheed, Zaman Khan, Yasmin Roomana, Akbar Hussain, et al. "Advancements in Laser Technology: Bridging Historical Milestones and Modern Applications in Science, Industry, and Sustainability." Global Scientific and Academic Research Journal of Multidisciplinary Studies 4, no. 1 (2025): 70–84. https://doi.org/10.5281/zenodo.14770605.

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<em>Laser technology has become a transformative technology in science, industry, and environmental sustainability. The first ruby laser was produced in 1960, and as far as Einstein’s principle of stimulated emission is concerned, lasers have proliferated into indispensable devices in medicine, manufacturing, and applications to the environment. It emphasizes important innovations and applications in the healthcare sector, i.e. minimally invasive surgeries, diagnostic imaging (e.g. Optical Coherence Tomography (OCT)), and laser-assisted drug delivery systems. In manufacturing, they make

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17

IMASAKI, Kazuo, and Sadao NAKAI. "The Technical Bases of Lasers: IV. Free Electron Laser (Tunable Laser)." Review of Laser Engineering 26, no. 12 (1998): 895–98. http://dx.doi.org/10.2184/lsj.26.895.

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18

Deqiao Xie, Deqiao Xie, Jianfeng Zhao Jianfeng Zhao, Yongai Qi Yongai Qi, Yue Li Yue Li, Lida Shen Lida Shen, and Meng Xiao Meng Xiao. "Decreasing pores in a laser cladding layer with pulsed current." Chinese Optics Letters 11, no. 11 (2013): 111401–4. http://dx.doi.org/10.3788/col201311.111401.

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19

Yi Zheng, Yi Zheng, Jinglong Ma Jinglong Ma, Xulei Ge Xulei Ge, Yutong Li Yutong Li, Zhiyi Wei Zhiyi Wei, and Jie Zhang Jie Zhang. "A multipass Ti:sapphire laser amplifier pumped with homogenized Nd:YAG lasers." Chinese Optics Letters 12, s2 (2014): S21412–321415. http://dx.doi.org/10.3788/col201412.s21412.

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20

Onachenko, M. S. "Superluminescent laser-integrated nanocarbonized matrix pumping the neodymium lasers YAG:Nd." Semiconductor Physics Quantum Electronics and Optoelectronics 18, no. 3 (2015): 367–71. http://dx.doi.org/10.15407/spqeo18.03.367.

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21

Juda, Maciej, and Joanna Wierzbowska. "Application of the femtosecond laser in ophthalmology." Lekarz Wojskowy 101, no. 1 (2023): 7–12. http://dx.doi.org/10.53301/lw/151937.

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Wprowadzenie na rynek lasera femtosekundowego było niewątpliwym kamieniem milowym w rozwoju nowoczesnej medycyny. Laser ten znalazł zastosowanie także w okulistyce, gdzie wykorzystywany jest podczas wielu różnych procedur zabiegowych. Mimo że technologia ta może nadal kojarzyć się głównie z chirurgią refrakcyjną, to okazało się, że ma szereg użytecznych zastosowań także w innych gałęziach okulistyki. Laser femtosekundowy, znany z zabiegów laserowej korekcji wzroku, jest coraz częściej wykorzystywany m.in. podczas transplantacji rogówki, w leczeniu stożka rogówki oraz w trakcie operacji zaćmy.

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22

Wang, Bang Fu, Xue Li Zhu, Ou Xie, and Zhen Yin. "Based on Microscale Laser Shock Processing of Metal Material Characteristics Analysis and Prospect." Advanced Materials Research 450-451 (January 2012): 273–76. http://dx.doi.org/10.4028/www.scientific.net/amr.450-451.273.

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It is introduced that laser shock peening is suitable for machining metal micro components. The micro scale effect and elastic-plastic theory of micro scale laser shock processing were analyzed and discussed. The research status, mechanism, key technology and influence factors of microscale lager shock peening were summarized and the problems in microscale lager shock peening were analyzed, which provides guidance for further research.

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23

Prasad, Vinod, Rinku Sharma, and Man Mohan. "Laser Assisted Electron - Alkali Atom Collisions." Australian Journal of Physics 49, no. 6 (1996): 1109. http://dx.doi.org/10.1071/ph961109.

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Lasar assisted inelastic scattering of electrons by alkali atoms is studied theoretically. The non-perturbative quasi-energy method, which is generalised for many atomic states, is used to describe the laser–atom interaction, and the electron–atom interaction is treated within the first Born approximation. We have calculated the total cross section for the excitation of sodium atoms due to simultaneous electron–photon collisions. We show the effect of laser and collision parameters, e.g. laser intensity, polarisation and incident electron energy, on the excitation process.

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24

Sugitani, Fumiko, Ryutaro Ohki, Kazumasa Chiyoda, Kiyonori Amano, and Kimiharu Noyori. "Laser iridotomy with Dye laser." JOURNAL OF JAPAN SOCIETY FOR LASER SURGERY AND MEDICINE 8, no. 3 (1987): 87–88. http://dx.doi.org/10.2530/jslsm1980.8.3_87.

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25

Bala, Oya, Emin Türköz, Hacer Deniz Arisu, and Goulnara Alimzhanova. "Assessment of Morphological Changes and Permeability of Apical Dentin Surfaces Induced by Nd:YAG Laser Irradiation through Retrograde Cavity Surfaces." Journal of Contemporary Dental Practice 5, no. 2 (2004): 102–13. http://dx.doi.org/10.5005/jcdp-5-2-102.

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Abstract The purpose of this in vitro study was to observe the morphological changes and apical dye penetration at apical dentin surfaces induced by Nd:YAG laser irradiation at different power settings with and without a laser initiator. Seventy five single rooted human maxillary anterior teeth were used. Following the establishment of the working lengths, the root canals were enlarged with step-back technique. The apex of each root was resected 3 mm perpendicular to its long axis. Standard Class I cavities of 2 mm depth and 2 mm width were prepared. The teeth were randomly divided into five g

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26

Zhao, Li-Quan, Huang Zhu, and Liang-Mao Li. "Laser-Assisted Subepithelial Keratectomy versus Laser In Situ Keratomileusis in Myopia: A Systematic Review and Meta-Analysis." ISRN Ophthalmology 2014 (June 12, 2014): 1–8. http://dx.doi.org/10.1155/2014/672146.

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This systematic review was to compare the clinical outcomes between laser-assisted subepithelial keratectomy (LASEK) and laser in situ keratomileusis (LASIK) for myopia. Primary parameters included mean manifest refraction spherical equivalent (MRSE), MRSE within ±0.50 diopters, uncorrected visual acuity (UCVA) ≥20/20, and loss of ≥1 line of best-corrected visual acuity (BCVA). Secondary parameters included flap complications and corneal haze. Twelve clinical controlled trials were identified and used for comparing LASEK (780 eyes) to LASIK (915 eyes). There were no significant differences in

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27

Kuroishi, Kenji, Tatuo Siina, Keizo Saitoh, and Kouichi Ikeda. "Scattering of the laser beam traversing in fog and laser lader equation." JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN 77, Appendix (1993): 173–74. http://dx.doi.org/10.2150/jieij1980.77.appendix_173.

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28

Sher, Bryan Martin, Riaan Mulder, and Norbert Gutknecht. "The Photobiomodulation Effect of 940nm Laser Irradiation on Enterococcus faecalis in Human Root Dentin Slices of Varying Thicknesses." Journal of Lasers in Medical Sciences 12, no. 1 (2021): e48-e48. http://dx.doi.org/10.34172/jlms.2021.48.

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Introduction: An increase in dentine thickness could result in an inadequate depth of laser energy penetration. This study aimed to evaluate the effect of a 940 nm laser on Enterococcus faecalis through varying thicknesses of human root dentin slices. Methods: Thirty-five dentin slices of root dentin with thicknesses ranging between 500 and 3000 µm were produced. Six experimental groups (500, 1000, 1500, 2000, 2500, and 3000 µm (n=5 each) were lased and the seventh, non-lased group served as the positive control with a dentine thickness of 2000 µm. The slices were inoculated with 2 µL of E. fa

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29

Salman, Saja Qasim, and Basima Mohammed Ali Hussein. "Topographical Analysis of Human Enamel after Phosphoric Acid Etching and Er,Cr:YSGG Laser Irradiation." Journal of Lasers in Medical Sciences 14 (December 28, 2023): e68. http://dx.doi.org/10.34172/jlms.2023.68.

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Introduction: Dental hard and soft tissues have been successfully removed by using the Er,Cr:YSGG laser, but there is a controversy about using lasers over conventional tooth surface preparation for bonding aesthetic restoration. Surface roughness and wettability in response to Er,Cr:YSGG laser irradiation are essential properties for restoration longevity. Methods: Fifty-one intact human premolars removed in orthodontic treatment were included in this study and divided into three groups (n=17). The first group (G1) was the control without surface treatment, (G2) was treated with 37% phosphori

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30

Panthier, F., S. Doizi, M. Corrales, and O. Traxer. "Pulsed lasers and endocorporeal laser lithotripsy." Progrès en Urologie 31, no. 8-9 (2021): 451–57. http://dx.doi.org/10.1016/j.purol.2020.11.008.

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31

Sah, Arbind Kumar. "An Atom Laser over Optical Lasers." Himalayan Physics 4 (December 23, 2013): 99–101. http://dx.doi.org/10.3126/hj.v4i0.9438.

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An atom laser is a coherent state of propagating atoms. They are created out of a Bose Einstein Condensation (BEC) of atoms which are output coupled using various techniques. An optical laser or conventional laser generates a coherent beam of light waves where as an atom laser produces a coherent beam of matter waves. An atom laser will have a major impact on the fields of atom optics, atom lithography and precision measurements.The Himalayan Physics Vol. 4, No. 4, 2013 Page: 99-101 Uploaded date: 12/23/2013

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32

Keefer, Dennis, Ahad Sedghinasab, Newton Wright, and Quan Zhang. "Laser propulsion using free electron lasers." AIAA Journal 30, no. 10 (1992): 2478–82. http://dx.doi.org/10.2514/3.11250.

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33

Scheps, Richard. "Efficient laser diode pumped Nd lasers." Applied Optics 28, no. 1 (1989): 89. http://dx.doi.org/10.1364/ao.28.000089.

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34

Yee, Richard W., and Steven B. Yee. "Update on laser subepithelial keratectomy (LASEK)." Current Opinion in Ophthalmology 15, no. 4 (2004): 333–41. http://dx.doi.org/10.1097/00055735-200408000-00010.

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35

Gmachl, Claire, Deborah L. Sivco, Alex Soibel, Raffaele Colombelli, Federico Capasso, and Alfred Y. Cho. "Laser Optics: Ultrabroadband Quantum Cascade Lasers." Optics and Photonics News 13, no. 12 (2002): 23. http://dx.doi.org/10.1364/opn.13.12.000023.

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36

Hughes, D. W., and J. R. M. Barr. "Laser diode pumped solid state lasers." Journal of Physics D: Applied Physics 25, no. 4 (1992): 563–86. http://dx.doi.org/10.1088/0022-3727/25/4/001.

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37

Garanin, S. G., and O. N. Krokhin. "High-power lasers and laser fusion." Herald of the Russian Academy of Sciences 81, no. 3 (2011): 204–10. http://dx.doi.org/10.1134/s1019331611030129.

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38

Scheps, Richard, Bernard M. Gately, Joseph F. Myers, Jerzy S. Krasinski, and Donald F. Heller. "Alexandrite laser pumped by semiconductor lasers." Applied Physics Letters 56, no. 23 (1990): 2288–90. http://dx.doi.org/10.1063/1.102942.

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39

Shu, Yu, Wang Dao-wen, Hu Xue-jin, et al. "Choice of lasers for laser angioplasty." Journal of Tongji Medical University 9, no. 3 (1989): 181–86. http://dx.doi.org/10.1007/bf02908972.

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40

Zhan, Xuepeng, Huailiang Xu, and Hongbo Sun. "Femtosecond laser processing of microcavity lasers." Frontiers of Optoelectronics 9, no. 3 (2016): 420–27. http://dx.doi.org/10.1007/s12200-016-0581-8.

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41

SHINOHARA, Koji. "Tunable lasers. Long wavelength semiconductor laser." Review of Laser Engineering 17, no. 11 (1989): 788–91. http://dx.doi.org/10.2184/lsj.17.11_788.

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42

Cammarata, F., and M. Wautelet. "Medical lasers and laser-tissue interactions." Physics Education 34, no. 3 (1999): 156–61. http://dx.doi.org/10.1088/0031-9120/34/3/313.

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43

Byer, R. L. "Diode Laser--Pumped Solid-State Lasers." Science 239, no. 4841 (1988): 742–47. http://dx.doi.org/10.1126/science.239.4841.742.

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44

Fan, T. Y., and R. L. Byer. "Diode laser-pumped solid-state lasers." IEEE Journal of Quantum Electronics 24, no. 6 (1988): 895–912. http://dx.doi.org/10.1109/3.210.

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45

Delmdahl, R., and R. Pätzel. "Pulsed laser deposition with excimer lasers." physica status solidi (c) 5, no. 10 (2008): 3276–79. http://dx.doi.org/10.1002/pssc.200779515.

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46

Sahith, Reddy Madara, M. Chithirai Pon Selvan Dr., and S. Sampath S. "REVIEW OF TOPICAL ENLARGEMENT IN LASER BEAM MACHINING." International Journal of Engineering Research and Modern Education 2, no. 2 (2017): 6–14. https://doi.org/10.5281/zenodo.837875.

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Laser beam technology is a standout amongst the most generally utilized warm vitality based non-contact sort progress machining process which can be connected for entire scope of materials. The cost of slicing hand-to-machine materials by customary mechanical machining procedures is high because of the low material expulsion rate and short device life, and a few materials are unrealistic to be cut by the traditional machining process. Laser beam/pillar is focused for softening and vaporizing the undesirable material from the parent material. It is reasonable for geometrically complex profile c

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47

KOBAYASHI, Naoto, Takashi UEDA, Tatsuaki FURUMOTO, Akira HOSOKAWA, and Ryutaro TANAKA. "E23 Laser Sintering Characteristics of Metallic Powder with Yb Fiber Laser : Optimization of Processing Conditions about Laser irradiation(Laser processing)." Proceedings of International Conference on Leading Edge Manufacturing in 21st century : LEM21 2009.5 (2009): 593–96. http://dx.doi.org/10.1299/jsmelem.2009.5.593.

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48

Adamska, Elżbieta, and Wojciech Rybiński. "Ocena reakcji odmian jęczmienia jarego na działanie chemomutagenu i światła lasera na podstawie wybranych cech ilościowych." Biuletyn Instytutu Hodowli i Aklimatyzacji Roślin, no. 226/227 (June 30, 2003): 269–76. https://doi.org/10.37317/biul-2003-0153.

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Celem przeprowadzonych badań było określenie synergistycznego działania azydku sodu z światłem lasera na zmienność cech ilościowych w pokoleniu M1 ze szczególnym uwzględnieniem roli genotypu wyjściowego na uzyskane efekty. Materiał do badań stanowiły trzy odmiany jęczmienia jarego których ziarniaki poddawano działaniu azydku sodu (AS), światła lasera oraz kombinacji łączonych (AS + laser i laser + AS). W pokoleniu M1 analizowano zmienność cech ilościowych roślin dotyczących cech struktury plonu. O ile najkrótszy z czasów ekspozycji laserowej (30 minut) dla odmian i wybranych cech indukował w p

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49

Kang, Hee Shin, Jeong Suh, and Taik Dong Cho. "Robot Based Laser Welding Technology." Materials Science Forum 580-582 (June 2008): 565–68. http://dx.doi.org/10.4028/www.scientific.net/msf.580-582.565.

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In order to obtain a good result in the laser welding process, the laser welding technology for manufacturing an automobile body is studied in this research. The monitoring of the welding quality and the seam tracking are studied to improve the productivity. The robot, the seam tracking system and CW Nd:YAG laser are used for the robot laser welding system. The laser system is 4kW Nd:YAG laser_(HL4006D) of Trumpf and the robot system is IRB6400R of ABB. The robot laser welding system is equipped with the seam tracker and plasma sensor. The seam tracking system is composed of SMART-20LS and RAP

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50

Antônio, Guilherme Santos Rodrigues; Miquéias Benício Macêdo; Oséias Henrique O. A. De Caires; Roosevelt Alves Ito; Vitor Oliveira Da Silva; Orientadores: Prof. João Edson Leite Júnior; Prof. Rondinei Roberto dos Santos Prof. Eng. Especialista Wilson Domingos e. Silva; Coorientador: Prof. Paulo Alves da Silva Junior. "PROJETO DE CNC A LASER." Revistaft 26, no. 116 (2022): 42. https://doi.org/10.5281/zenodo.7377942.

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O incremento da indústria 4.0 possibilita ao homem a introdução de tecnologias progressivas, que resultam em uma infinidade de aplicações, entre as quais a internet das coisas (IOT), Big Data (BD), Inteligência Artificial (AI), entre outras (YANG 2021). Neste sentido, máquinas de gravações e/ou cortes automatizadas são dispositivos capazes de realizar algum trabalho através de um controle numeral (ATTAR, et al, 2022). Em linhas gerais, o projeto aqui descrito, se trata de uma CNC a laser, que é um equipamento el

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