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Journal articles on the topic 'Excimer lasers'

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Published: 4 June 2021

Last updated: 4 March 2023

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1

Lin, L. T. S., M. A. Prelas, Z. He, J. T. Bahns, W. C. Stwalley, G. H. Miley, M. Petra, E. G. Batyrbekov, and Y. R. Shaban. "Design of an ICF plant using a nuclear-driven solid-state laser." Laser and Particle Beams 13, no. 1 (March 1995): 95–109. http://dx.doi.org/10.1017/s0263034600008879.

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An ICF plant is designed to use nuclear-driven flashlamp-pumped solid-state lasers as fusion drivers. It is proposed to use a separated fission reactor with aerosol fuel to drive alkali metal excimer flashlamps as the pumping source for solid-state lasers. The first observation of nuclear-excited sodium excimer emission at 436 nm in a TRIGA reactor with 815 Torr of He-3 and 60 Torr of sodium vapor (at T = 924 K) is reported. The experiment demonstrates the feasibility of a nuclear-driven alkali metal excimer lamp. The compatibility of alkali metal excimers with different laser crystals is evaluated for driver efficiency. High overall laser efficiency ensures large fractional output power extraction from nuclear fusion by this plant. The suitability of laser crystals for the ICF plant is also presented.

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2

Hotta, Kazuaki. "Excimer Lasers." JOURNAL OF JAPAN SOCIETY FOR LASER SURGERY AND MEDICINE 13, Supplement (1992): 203–6. http://dx.doi.org/10.2530/jslsm1980.13.supplement_203.

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3

GIRARDEAU-MONTAUT, J. P. "EXCIMER LASERS." Le Journal de Physique Colloques 48, no. C7 (December 1987): C7–225—C7–228. http://dx.doi.org/10.1051/jphyscol:1987750.

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4

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 (December 1, 1999): S323—S325. http://dx.doi.org/10.1007/s003390051409.

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5

ENDOH, Akira, Masayoshi WATANABE, Nobuhiko SARUKURA, and Shuntaro WATANABE. "Picosecond excimer lasers." Review of Laser Engineering 16, no. 4 (1988): 160–66. http://dx.doi.org/10.2184/lsj.16.160.

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6

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

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7

Yang, Lizhao, Xiaodong Fang, and Libing You. "Numerical Analysis of Corona Pre-Ionization for High-Power Discharge-Pumped XeCl* Excimer Lasers." Journal of Nanoelectronics and Optoelectronics 17, no. 3 (March 1, 2022): 436–45. http://dx.doi.org/10.1166/jno.2022.3219.

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The working gas of discharge-pumped excimer lasers is generally a mixture of rare gases and monohalide. Typically, the working gas is preconized to generate reproducible uniform glow discharge. In high-power (more than 100 W) excimer lasers, this pre-ionization is achieved through spark discharge in the discharge chamber. In this study, a high-power discharge-pumped XeCl* excimer laser with corona preionisation was designed to investigate the feasibility of applying corona preionisation in high-power excimer lasers as well as analyse the correlation of corona discharges characteristics with laser discharge properties. The electron avalanche triggered by ultraviolet preionisation in the laser was numerically studied by creating 2D models. The simulation results revealed that the additional ionisation induced by the secondary electron emission of the cathode together with the dielectric constant of the corona bars significantly affect the discharge current of the principal electrodes. Under the condition of the design values, the peak preionisation electron density between electrodes was approximately 108 cm−3, and the laser discharge was quite uniform, which theoretically proved the feasibility of using corona preionisation instead of spark discharge preionisation in high-power practical devices.

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8

Tremblay, M. E., J. B. Simeonsson, B. W. Smith, and J. D. Winefordner. "Laser-Induced Double Resonance Ionic Fluorescence of Rare Earths in the Inductively Coupled Plasma." Applied Spectroscopy 42, no. 2 (February 1988): 281–85. http://dx.doi.org/10.1366/0003702884428185.

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Laser excitation of ionic fluorescence overcomes the problem of spectral interferences encountered when trace analysis of the rare earths is performed by atomic/ionic emission spectrometry in the inductively coupled plasma. Two pulsed, excimer pumped, tunable dye lasers are used to excite ionic fluorescence of rare earths in an inductively coupled plasma. Since several fluorescence lines have been observed after laser excitation, it is possible to draw partial energy level diagrams for lanthanum, ytterbium, europium, and lutetium. Detection limits, linear dynamic ranges, and sensitivities are also reported. This is the first time that two-step excited fluorescence has been observed for any rare earths in an inductively coupled plasma.

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9

HOTTA, Kazuaki. "Discharge excited high-repetition-rate excimer lasers." Review of Laser Engineering 16, no. 4 (1988): 191–99. http://dx.doi.org/10.2184/lsj.16.191.

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10

Tarasov, Aleksandr, and Hong Chu. "Engineering of Ti:Sapphire Lasers for Dermatology and Aesthetic Medicine." Applied Sciences 11, no. 22 (November 9, 2021): 10539. http://dx.doi.org/10.3390/app112210539.

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This review describes new engineering solutions for Ti:Sapphire lasers obtained at Laseroptek during the development of laser devices for dermatology and aesthetic medicine. The first device, PALLAS, produces 311 nm radiation by the third harmonic generation of a Ti:Sapphire laser, which possesses similar characteristics to excimer laser-based medical devices for skin treatments. In comparison to excimer lasers, Ti:Sapphire laser services are less expensive, which can save ~10% per year for customers compared to initial excimer laser costs. Here, the required characteristics were obtained due to the application of a new type of diffraction grating for spectral selection. The second device, HELIOS-4, based on the Ti:Sapphire laser, produces 300 mJ, 0.5 ns pulses at 785 nm for tattoo removal. The characteristics of HELIOS-4 exceed those of other tattoo removal laser devices represented in the medical market, despite a simple and inexpensive technical solution. The development of the last laser required the detailed study of a generation process and the investigation of the factors responsible for the synchronization of the generation in Ti:Sapphire lasers with short (several millimeters) cavities. The mechanism that can explain the synchronization in such lasers is suggested. Experiments for the confirmation of this concept are conducted and analyzed.

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11

Lou, Qihong. "UV excimer laser produced plasma and it's application to laser plasma switching." Laser and Particle Beams 6, no. 2 (May 1988): 335–41. http://dx.doi.org/10.1017/s0263034600004092.

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The characteristics of a laser plasma created by a high intensity UV excimer laser were investigated. The UV laser plasma was used as a switch for control of the laser pulse duration for the first time. An X-ray preionized XeCl laser pulse duration can be changed from 10 to 85 ns. This technique is useful for many applications of excimer lasers requiring various pulse durations.

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12

NAGAI, Haruhiko. "Applications of Excimer Lasers." Review of Laser Engineering 23, no. 12 (1995): 1038–50. http://dx.doi.org/10.2184/lsj.23.1038.

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13

Steinert, Roger F., and Carmen A. Puliafito. "Excimer lasers in ophthalmology." Journal of Cataract & Refractive Surgery 15, no. 4 (July 1989): 369–70. http://dx.doi.org/10.1016/s0886-3350(89)80053-7.

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14

Tönshoff, H. K., D. Hesse, and J. Mommsen. "Micromachining Using Excimer Lasers." CIRP Annals - Manufacturing Technology 42, no. 1 (January 1993): 247–51. http://dx.doi.org/10.1016/s0007-8506(07)62436-6.

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15

Wilson, William L., Frank K. Tittel, and William Nighan. "Broadband tunable excimer lasers." IEEE Circuits and Devices Magazine 1, no. 1 (January 1985): 55–62. http://dx.doi.org/10.1109/mcd.1985.6311925.

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16

FONTAINE, B. L. "Excimer lasers in France." Le Journal de Physique IV 04, no. C4 (April 1994): C4–773—C4–773. http://dx.doi.org/10.1051/jp4:19944213.

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17

ZERZA, G., G. SLIWINSKI, and N. SCHWENTNER. "Solid state excimer lasers." Le Journal de Physique IV 04, no. C4 (April 1994): C4–774—C4–774. http://dx.doi.org/10.1051/jp4:19944214.

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18

WATANABE, Shuntaro. "Short pulse excimer lasers." Review of Laser Engineering 15, no. 11 (1987): 855–62. http://dx.doi.org/10.2184/lsj.15.855.

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19

SUGII, Masakatsu. "Narrow-bandwidth excimer lasers." Review of Laser Engineering 16, no. 4 (1988): 177–90. http://dx.doi.org/10.2184/lsj.16.177.

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20

McKee, Terrence J. "Emission spectra of common discharge excimer-laser transitions." Canadian Journal of Physics 66, no. 10 (October 1, 1988): 859–60. http://dx.doi.org/10.1139/p88-141.

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21

Xing, Da, Ken-Ichi Ueda, and Hiroshi Takuma. "Ionic excimers and alkali dimer triplet-state excimer lasers." Laser and Particle Beams 11, no. 1 (March 1993): 3–13. http://dx.doi.org/10.1017/s0263034600006868.

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Vacuum UV fluorescences from ionic alkali-halide and rare-gas alkali excimers were observed by e-beam excitation. The two diffuse emissions centered at 185 and 154 nm from the CsF vapor were attributed to the bound-free B2Σ+ → X2Σ+ and D2Π → X2Σ+ bands of (CsF)+, respectively. And, the 164- and 133-nm diffuse bands from gas the mixture of Xe or Kr with hot vapor of Rb were assigned to the emissions of (XeRb)+ and (KrRb)+ ionic excimers. In addition, amplified spontaneous emissions of the Na2 violet, K2 yellow, and Rb2 orange diffuse bands were observed from e-beam-excited alkali vapor with argon buffer gas. The continuum spectra centered at 436, 574, and 604 nm were attributed to triplet-triplet Na2, K2, and Rb2 23Πg → 13Σu+ bound-free transitions, respectively. The dissociative recombination of Na3+, K3+, or Rb3+ is discussed as an efficient formation process of the upper states in e-beam pumping.

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22

Adonin, A., V. Turtikov, A. Ulrich, J. Jacoby, D. H. H. Hoffmann, and J. Wieser. "Intense heavy ion beams as a pumping source for short wavelength lasers." Laser and Particle Beams 27, no. 3 (July 17, 2009): 379–91. http://dx.doi.org/10.1017/s0263034609000494.

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AbstractThe high energy loss of heavy ions in matter as well as the small angular scattering makes heavy ion beams an excellent tool to produce almost cylindrical and homogeneously excited volumes in matter. This aspect can be used to pump short wavelength lasers. For the first time, a beam of heavy ions was used to pump a short wavelength gas laser in an experiment performed at the GSI ion accelerator facility in December 2005. In this experiment, the well-known KrF* excimer laser was pumped with an intense uranium beam. Pulses of an uranium beam compressed down to 110 ns (full width at half maximum) with initial particle energy of 250 MeV per nucleon were stopped inside a gas laser cell. A mixture of an excimer laser premix gas (95.5%Kr + 0.5%F2) and a buffer gas (Ar) in different proportions was used as the laser gas. The maximum beam intensity reached in the experiment was 2.5 × 109particles per pulse, which resulted in 34 J/g specific energy deposited in the laser gas. The laser effect on the transition at λ = 248 nm has been successfully demonstrated by various independent methods. There, the laser threshold was reached with a beam intensity of 1.2 × 109particles per pulse, and the energy of the laser pulse of about 2 mJ was measured for an ion beam intensity of 2 × 109particles per pulse. As a next step, it is planned to reduce the laser wavelength down to the vacuum ultraviolet spectral region, and to proceed to the excimer lasers of the pure rare gases. The perspectives for such experiments are discussed and the detailed estimations for Xe and Kr cases are given. We believe that the use of heavy ion beams as a pumping source may lead to new pumping schemes on the higher lying level transitions and considerably shorter wavelengths, which rely on the high cross sections for multiple ionization of the target species.

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23

Abdelhalim, Ibrahim, Omnia Hamdy, Aziza Ahmed Hassan, and Salah Hassab Elnaby. "Nd:YAG fourth harmonic (266-nm) generation for corneal reshaping procedure: An ex-vivo experimental study." PLOS ONE 16, no. 11 (November 29, 2021): e0260494. http://dx.doi.org/10.1371/journal.pone.0260494.

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Corneal reshaping is a common medical procedure utilized for the correction of different vision disorders relying on the ablation effect of the UV pulsed lasers, especially excimer lasers (ArF) at 193 nm. This wavelength is preferred in such medical procedures since laser radiation at 193 nm exhibits an optimum absorption by corneal tissue. However, it is also significantly absorbed by the water content of the cornea resulting in an unpredictability in the clinical results, as well as the high service and operation cost of the commercial ArF excimer laser device. Consequently, other types of solid-state UV pulsed lasers have been introduced. The present work investigates the ablation effect of solid-state laser at 266 nm in order to be utilized in corneal reshaping procedures. Different number of pulses has been applied to Polymethyl Methacrylate (PMMA) and ex-vivo rabbit cornea to evaluate the ablation effect of the produced laser radiation. PMMA target experienced ellipse-like ablated areas with a conical shape in the depth. The results revealed an almost constant ablation area regardless the number of laser pulses, which indicates the stability of the produced laser beam, whereas the ablation depth increases only with increasing the number of laser pulses. Examination of the ex-vivo cornea showed a significant tissue undulation, minimal thermal damage, and relatively smooth ablation surfaces. Accordingly, the obtained 266-nm laser specifications provide promising alternative to the traditional 193-nm excimer laser in corneal reshaping procedure.

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24

UEDA, Ken-ichi. "Present status of excimer lasers." Journal of the Japan Society for Precision Engineering 55, no. 5 (1989): 837–40. http://dx.doi.org/10.2493/jjspe.55.837.

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25

Pidro, Ajla, Alma Biscevic, Melisa Pjano, Ivana Mravicic, Nita Bejdic, and Maja Bohac. "Excimer Lasers in Refractive Surgery." Acta Informatica Medica 27, no. 4 (2019): 278. http://dx.doi.org/10.5455/aim.2019.27.278-283.

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26

Yu Yinshan, 余吟山, 游利兵 You Libing, 梁勖 Liang Xu, and 方晓东 Fang Xiaodong. "Progress of Excimer Lasers Technology." Chinese Journal of Lasers 37, no. 9 (2010): 2253–70. http://dx.doi.org/10.3788/cjl20103709.2253.

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27

Nakano, Hitoshi, Daisuke Akita, Takeyoshi Nakayama, and Uichi Kubo. "Excimer Lasers and Biological Lipid." JOURNAL OF JAPAN SOCIETY FOR LASER SURGERY AND MEDICINE 15, Supplement (1994): 141–44. http://dx.doi.org/10.2530/jslsm1980.15.supplement_141.

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28

ISHIZAKA, SHIN-ICHI. "Polymer processing with excimer lasers." Journal of Photopolymer Science and Technology 6, no. 3 (1993): 375–78. http://dx.doi.org/10.2494/photopolymer.6.375.

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29

Ewing, J. J. "Excimer Lasers at 30 Years." Optics and Photonics News 14, no. 5 (May 1, 2003): 26. http://dx.doi.org/10.1364/opn.14.5.000026.

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30

McIntyre, Iain A., and Charles K. Rhodes. "High power ultrafast excimer lasers." Journal of Applied Physics 69, no. 1 (January 1991): R1—R19. http://dx.doi.org/10.1063/1.347665.

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31

Witt, Manfred. "Industrial applications of excimer lasers." Hyperfine Interactions 37, no. 1-4 (December 1987): 415–21. http://dx.doi.org/10.1007/bf02395723.

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32

Christensen, C. Paul, B. J. Feldman, and A. Huston. "Ultranarrow linewidth waveguide excimer lasers." Applied Optics 28, no. 17 (September 1, 1989): 3771. http://dx.doi.org/10.1364/ao.28.003771.

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33

MIYAZAKI, Kenzo, Toshifumi HASAMA, Kawakatsu YAMADA, Takuzo SATO, Takashi EURA, and Toru FUKATSU. "Efficient Discharge-Pumped Excimer Lasers." Review of Laser Engineering 13, no. 10 (1985): 814–22. http://dx.doi.org/10.2184/lsj.13.814.

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34

Schaeffer, R. D., M. J. Scaggs, and T. P. McGarry. "MATERIALS PROCESSING WITH EXCIMER LASERS." Materials and Manufacturing Processes 5, no. 4 (January 1990): 617–40. http://dx.doi.org/10.1080/10426919008953281.

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35

Yabe, Akira, and Hiroyuki Niino. "Polymer Ablation with Excimer Lasers." Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals 224, no. 1 (January 1993): 111–21. http://dx.doi.org/10.1080/10587259308032484.

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36

Klopotek, P., B. Burghardt, and W. Muckenheim. "Short pulses from excimer lasers." Journal of Physics E: Scientific Instruments 20, no. 10 (October 1987): 1269–70. http://dx.doi.org/10.1088/0022-3735/20/10/026.

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37

Szatm�ri, S. "High-brightness ultraviolet excimer lasers." Applied Physics B Laser and Optics 58, no. 3 (March 1994): 211–23. http://dx.doi.org/10.1007/bf01081313.

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38

HOTTA, Kazuaki, Sinji ITO, and Motohiro ARAI. "High-Efficiency Discharge Excited Rare-Gas Halide Excimer Lasers." Review of Laser Engineering 21, no. 10 (1993): 1021–30. http://dx.doi.org/10.2184/lsj.21.10_1021.

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39

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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40

Hjortdal, Jesper. "Surface Ablation Techniques for Myopia – A Review of the Advances Over the Past 25 Years." European Ophthalmic Review 11, no. 01 (2017): 31. http://dx.doi.org/10.17925/eor.2017.11.01.31.

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Photorefractive keratectomy for correction of myopia was the first excimer laser-based technique to be developed. During the last 25 years, excimer lasers have improved technologically, several variations of the technique have been developed and pre- and postoperative pharmaceutical therapies have been investigated. This review article summarises these developments and the published meta-analyses on comparison of surface ablation techniques and laser in situ keratomileusis. The main conclusion is that there seem to be no differences between the clinical results obtained with the different variations of surface ablation techniques.

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41

Dyer, P. E. "Excimer lasers, their applications and new frontiers in lasers." Optics & Laser Technology 17, no. 5 (October 1985): 273–74. http://dx.doi.org/10.1016/0030-3992(85)90044-1.

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42

MARCACCI, M., R. BUDA, S. ZAFFAGNINI, A. VISANI, F. IACONO, R. STROCCHI, and V. De PASQUALE. "Comparison Between Laser Meniscectomy with Excimer and Ho:YAG Lasers." Journal of Clinical Laser Medicine & Surgery 11, no. 1 (February 1993): 29–31. http://dx.doi.org/10.1089/clm.1993.11.29.

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43

Istomina, N. L. "Laser World in Focus: From Excimer to Diode Lasers." Photonics Russia, no. 6 (2017): 36–40. http://dx.doi.org/10.22184/1993-7296.2017.66.6.36.40.

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44

TOYODA, Koichi. "Vistas of laser-phtochemical processing. Role of excimer lasers." Review of Laser Engineering 15, no. 6 (1987): 420–23. http://dx.doi.org/10.2184/lsj.15.420.

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45

Nguyen, H., R. S. Eiferman, and R. E. Nordquist. "Corneal ultrastructure after excimer laser keratectomy." Proceedings, annual meeting, Electron Microscopy Society of America 52 (1994): 372–73. http://dx.doi.org/10.1017/s0424820100169596.

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The Argon fluoride excimer laser emits light at 193nm. At a fluence of 500mJ/CM2, one micron of organic tissue should be removed. This removal occurs by the disruption of chemical bonds rather than the normal heat vaporization seen with other types of lasers. These characteristics should allow the use of this laser in performing precise removal of superficial corneal scars and opacities as well as inducing changes in corneal curvature for refractive corrections. In our studies we will report the ultrastructural changes induced in both primates and man following excimer laser treatment.Following excimer laser treatment, the primates were followed for two years and the corneas removed for morphological studies. The human specimens were taken at various times after excimer treatment for clinical reasons, all having to do with unfavorable outcomes. All human specimens were taken at the time of transplantation of a new cornea to these eyes. The specimens were fixed with 2% paraformaldehyde and 2% gluderaldehyde in cacodylate buffer at pH 7.3. After fixation, these specimens were dehydrated, imbedded in Spurr epoxy resin, then sectioned and examined ultrastructurally.

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46

Haglund, Richard F. "Damage Mechanisms in Optical Materials For High-Power, Short-Wavelength Laser Systems." MRS Bulletin 11, no. 3 (June 1986): 46–47. http://dx.doi.org/10.1557/s088376940005483x.

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Damage to optical materials under intense photon irradiation has always been a major problem in the design and operation of high-energy and high-average-power lasers. In short-wavelength lasers, operating at visible and ultraviolet wavelengths, the problem appears to be especially acute; presently attainable damage thresholds seriously compromise the engineering design of laser windows and mirrors, pulsed power trains and oscillator-amplifier systems architecture. Given the present interest in ultraviolet excimer lasers and in short-pulse, high-power free-electron lasers operating at visible and shorter wavelengths, the “optical damage problem” poses a scientific and technological challenge of significantdimensions. The solution of this problem even has significant implications outside the realm of lasers, for example, in large space-borne systems (such as the Hubble Telescope) exposed to intense ultraviolet radiation.The dimensions of the problem are illustrated by the Large-Aperture krypton-fluoride laser amplifier Module (LAM) shown schematically in Figure 1. This device, now operating at the Los Alamos National Laboratory, is typical of current and planned large excimer lasers for fusion applications. The LAM has an active volume of some 2 m3, and optical surfaces (resonator mirror and windows) exceeding 1 m2 in size; the fabrication of these optical elements was the most expensive and time-consuming single item in the construction of the laser. During laser operation, a population inversion in an Ar-Kr-F2 mix ture is created through electron-beam excitation of the laser gas by two 400 kA beams of 650 keV electrons from a cold cathode discharge. The electron trajectories in the gas are constrained by a 4 kG magnetic field transverse to the optical axis produced by a pair of large Helmholtzcoils.

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47

Knaub, Jim. "Excimer Lasers-A Place in Optometry?" Journal of Refractive Surgery 6, no. 5 (September 1990): 313–14. http://dx.doi.org/10.3928/1081-597x-19900901-03.

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48

Hashishin, Yuichi, Takanobu Fujimoto, and Uichi Kubo. "Hollow Light Guide for Excimer Lasers." JOURNAL OF JAPAN SOCIETY FOR LASER SURGERY AND MEDICINE 12, Supplement (1991): 176–79. http://dx.doi.org/10.2530/jslsm1980.12.supplement_176.

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49

ITAKURA, Yasuo, Ryoichi NODOMI, and Masao KAKIMOTO. "High Beam Quality ArF Excimer Lasers." Review of Laser Engineering 20, no. 2 (1992): 75–85. http://dx.doi.org/10.2184/lsj.20.2_75.

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50

Uteza, O., P. Delaporte, B. Fontaine, B. Forestier, M. Sentis, I. Tassy, and J. P. Truong. "Acoustic wave origin in excimer lasers." Applied Physics B: Lasers and Optics 64, no. 5 (May 1, 1997): 531–37. http://dx.doi.org/10.1007/s003400050211.

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