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Journal articles on the topic 'Liquid lasers'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Cao, Fengzhao, Shuai Zhang, Junhua Tong, et al. "Effects of Cavity Structure on Tuning Properties of Polymer Lasers in a Liquid Environment." Polymers 11, no. 2 (2019): 329. http://dx.doi.org/10.3390/polym11020329.

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The effect of cavity structures on the tuning properties of polymer lasers was investigated in two common distributed-feedback cavities. The configurations of the two cavities are substrate/grating/active waveguide and substrate/active waveguide/grating, respectively. The polymer lasers were operated in the liquid environment, and the laser wavelength was tuned dynamically by changing the refractive index of the liquid. Polymer lasers based on the substrate/grating/active waveguide structure showed a higher tunability than those based on the substrate/active waveguide/grating structure due to

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2

Chanishvili, Andro, Ketevan Chubinidze, Gia Petriashvili, Nino Ponjavidze, Zurab Wardosanidze, and Tsisana Zurabishvili. "Spatially Modulated Pumping for Cholesteric Liquid Crystal Lasers." Photonics Letters of Poland 17, no. 2 (2025): 48–50. https://doi.org/10.4302/plp.v17i2.1343.

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Excitation of cholesteric liquid crystal lasers with a large diameter pumping spot is considered. It is shown that the introduction of spatial modulation into the pump beam transfers light emission of the liquid crystal layer from the luminescence mode to the lasing mode. Furthermore, the possibility of dynamic recording of information on a laser optical layer with a thickness of 12µm and an area of about 40mm2 is demonstrated. Full Text: PDF References L. Blinov, R. Bartolino (Eds.), Liquid Crystal Microlasers (Trivandrum, Transworld Research Network 2010). DirectLink H. Coles, S. Morris, "Li

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3

Ghazi, Fatima, and Milad A. R. Alhammashi. "Laser Technology and Its Applications in Medicine." SAS Journal of Medicine 12, no. 04 (2025): 97–106. https://doi.org/10.36347/sjpms.2025.v12i04.003.

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This study examines the laser and its uses in medicine. It refers to light amplification by stimulated emission of radiation (SEER). This is electromagnetic radiation whose photons are equal in frequency and phase, and whose wavelengths interfere constructively, transforming into a light pulse. The history of laser development, which began in the mid-nineteenth century, is also studied. Lasers have evolved and their use in many fields has expanded. The components of the laser, including the active medium, the excited source, and the resonator, are also studied. The conditions for lasing are de

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4

Coles, Harry, and Stephen Morris. "Liquid-crystal lasers." Nature Photonics 4, no. 10 (2010): 676–85. http://dx.doi.org/10.1038/nphoton.2010.184.

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5

Mysliwiec, Jaroslaw, Alina Szukalska, Adam Szukalski, and Lech Sznitko. "Liquid crystal lasers: the last decade and the future." Nanophotonics 10, no. 9 (2021): 2309–46. http://dx.doi.org/10.1515/nanoph-2021-0096.

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Abstract The demonstration of the first ruby laser in 1960 led to a revolution in science and technology. The lasers have significantly influenced the development of new approaches to spectroscopy, giving previously undreamed insights into physics, chemistry, and other scientific areas. The search for new materials for light amplification is one of the fundamental subjects of modern photonics and nanotechnology. In this review, we summarize the most appealing progress in developing liquid crystalline (LC) micro and nano-lasers during the last decade, together with their applications and descri

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6

Klassen, N. V., and P. V. Provotorov. "Spatial and spectral features of the luminescence of liquid nitrogen stimulated by infrared lasers." Journal of Physics: Conference Series 2056, no. 1 (2021): 012038. http://dx.doi.org/10.1088/1742-6596/2056/1/012038.

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Abstract Spectral features of cryogenic liquids, especially nitrogen, seem to be clearly investigated due to the wide application in science. On the other hand, material properties can really be different under intensive laser irradiation. During irradiation of liquid nitrogen with pulsed (pulse duration 20 ns) YaG: Nd 1064 nm laser with average power of 0.3 W we have found bright luminescence in the visible region with five narrow spectral lines. This phenomenon can be explained by the multiphoton excitation of nitrogen molecules and ions with infrared photons. Its spatial and spectral charac

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7

Wang Moge, 王墨戈, 许晓军 Xu Xiaojun, and 陆启生 Lu Qisheng. "Influence of Liquid Flow on Laser Beam Quality in Liquid Lasers." Chinese Journal of Lasers 37, no. 1 (2010): 131–35. http://dx.doi.org/10.3788/cjl20103701.0131.

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8

Shang, Zhenzhen, Zhi Wang, and Guang Dai. "Stability-Enhanced Emission Based on Biophotonic Crystals in Liquid Crystal Random Lasers." Materials 16, no. 1 (2022): 200. http://dx.doi.org/10.3390/ma16010200.

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A new design of a bio-random laser based on a butterfly wing structure and ITO glass is proposed in this article. Firstly, the butterfly wing structure was integrated in a liquid crystal cell made of ITO glass. The integrated liquid crystal cell was injected with liquid crystal and dye to obtain a bio-random laser. A non-biological random laser was obtained with a capillary glass tube, liquid crystal and dye. The excitation spectra and thresholds were recorded to evaluate the performance of the biological and non-biological random lasers. The results show that the excitation performance stabil

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9

He, Zhicong, Lixiang Lei, Shaojiang Lin, et al. "Metal Material Processing Using Femtosecond Lasers: Theories, Principles, and Applications." Materials 17, no. 14 (2024): 3386. http://dx.doi.org/10.3390/ma17143386.

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Metal material processing using femtosecond lasers is a useful technique, and it has been widely employed in many applications including laser microfabrication, laser surgery, and micromachining. The basic mechanisms of metal processing using femtosecond lasers are reviewed in this paper and the characteristics and theory of laser processing are considered. In addition to well-known processes, the recent progress relating to metals processing with femtosecond lasers, including metal material drilling, metal ablation thresholds, micro/nano-surface modification, printed circuit board (PCB) micro

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10

Dyachenko, P. P., V. V. Kalinin, E. A. Seregina, et al. "Inorganic liquid laser doped with neodymium and uranyl." Laser and Particle Beams 11, no. 3 (1993): 493–98. http://dx.doi.org/10.1017/s0263034600005140.

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Spectral-luminescent properties of the Nd3+-activated laser liquid based upon POCl3-SnCI4 upon excitation by-products of nuclear reactions have been researched. It was concluded that the main luminescence characteristics such as T, Δλ, and λmax depend slightly upon the way of the medium excitation. It was obtained that the pumping efficiency δ of the upper working level is directly proportional to the activator ions' concentration and almost independent of the uranyl presence in the liquid. The measured values t, Δλ, λmax, and δ were used for the estimates of some parameters of nuclear-pumped

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11

Jalil, Muhammad Arif Bin. "A Review on The Nitrogen Laser." International Journal for Research in Applied Science and Engineering Technology 12, no. 11 (2024): 1219–24. http://dx.doi.org/10.22214/ijraset.2024.65342.

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Abstract: A nitrogen laser is a type of gas laser that uses molecular nitrogen as its gain medium to operate in the ultraviolet (UV) spectrum. First created in 1963, nitrogen lasers were first put to use in commerce in 1972. A nitrogen laser is a type of gas laser that uses molecular nitrogen as its gain medium to operate in the ultraviolet (UV) spectrum. First created in 1963, nitrogen lasers were first put to use in commerce in 1972.Applications for nitrogen lasers can be found in physics, chemistry, and medical research. The principle of operation for nitrogen lasers is a quick electrical d

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12

Patra, Kajwal Kumar, Ibrahim Eliah Dawod, Andrew V. Martin, et al. "Ultrafast dynamics and scattering of protic ionic liquids induced by XFEL pulses." Journal of Synchrotron Radiation 28, no. 5 (2021): 1296–308. http://dx.doi.org/10.1107/s1600577521007657.

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X-rays are routinely used for structural studies through scattering, and femtosecond X-ray lasers can probe ultrafast dynamics. We aim to capture the femtosecond dynamics of liquid samples using simulations and deconstruct the interplay of ionization and atomic motion within the X-ray laser pulse. This deconstruction is resolution dependent, as ionization influences the low momentum transfers through changes in scattering form factors, while atomic motion has a greater effect at high momentum transfers through loss of coherence. Our methodology uses a combination of classical molecular dynamic

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13

Wang, Mengxia, Fang Zhang, Zhengping Wang, and Xinguang Xu. "Liquid-Phase Exfoliated Silicon Nanosheets: Saturable Absorber for Solid-State Lasers." Materials 12, no. 2 (2019): 201. http://dx.doi.org/10.3390/ma12020201.

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As a newly-developed two-dimensional (2D) material of group-IVA, few-layer silicon (Si) nanosheets were prepared by the liquid phase exfoliation (LPE) method. Its non-linear saturable adsorption property was investigated by 532 and 1064 nm nanosecond lasers. Using Si nanosheets as the saturable absorber (SA), passive Q-switched all-solid-state lasers were demonstrated for the first time. For different laser emissions of Nd3+ at 0.9, 1.06, and 1.34 µm, the narrowest Q-switched pulse widths were 200.2, 103.7, and 110.4 ns, corresponding to the highest peak powers of 2.76, 2.15, and 1.26 W. The r

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14

Zhu, Hongyang, Bingquan Zhao, Zhi Liu, et al. "Boundary Feedback Fiber Random Microcavity Laser Based on Disordered Cladding Structures." Photonics 11, no. 5 (2024): 467. http://dx.doi.org/10.3390/photonics11050467.

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The cavity form of complex microcavity lasers predominantly relies on disordered structures, whether found in nature or artificially prepared. These structures, characterized by disorder, facilitate random lasing through the feedback effect of the cavity boundary and the internal scattering medium via various mechanisms. In this paper, we report on a random fiber laser employing a disordered scattering cladding medium affixed to the inner cladding of a hollow-core fiber. The internal flowing liquid gain establishes a stable liquid-core waveguide environment, enabling long-term directional coup

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15

Weierstall, Uwe. "Liquid sample delivery techniques for serial femtosecond crystallography." Philosophical Transactions of the Royal Society B: Biological Sciences 369, no. 1647 (2014): 20130337. http://dx.doi.org/10.1098/rstb.2013.0337.

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X-ray free-electron lasers overcome the problem of radiation damage in protein crystallography and allow structure determination from micro- and nanocrystals at room temperature. To ensure that consecutive X-ray pulses do not probe previously exposed crystals, the sample needs to be replaced with the X-ray repetition rate, which ranges from 120 Hz at warm linac-based free-electron lasers to 1 MHz at superconducting linacs. Liquid injectors are therefore an essential part of a serial femtosecond crystallography experiment at an X-ray free-electron laser. Here, we compare different techniques of

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16

Zhang, Guoqiang, Masato Takiguchi, Kouta Tateno, Takehiko Tawara, Masaya Notomi, and Hideki Gotoh. "Telecom-band lasing in single InP/InAs heterostructure nanowires at room temperature." Science Advances 5, no. 2 (2019): eaat8896. http://dx.doi.org/10.1126/sciadv.aat8896.

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Telecom-band single nanowire lasers made by the bottom-up vapor-liquid-solid approach, which is technologically important in optical fiber communication systems, still remain challenging. Here, we report telecom-band single nanowire lasers operating at room temperature based on multi-quantum-disk InP/InAs heterostructure nanowires. Transmission electron microscopy studies show that highly uniform multi-quantum-disk InP/InAs structure is grown in InP nanowires by self-catalyzed vapor-liquid-solid mode using indium particle catalysts. Optical excitation of individual nanowires yielded lasing in

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17

Antipov, O. L. "High efficiency in-band pumped Tm- and Ho-doped 2-μm solid-state lasers". Journal of Physics: Conference Series 2494, № 1 (2023): 012009. http://dx.doi.org/10.1088/1742-6596/2494/1/012009.

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Abstract The expansion of laser sources operating at 2-3 μm is motivated in large by strong absorption in atmospheric gases, liquid water, and plastics, critical for applications in remote sensing, soft and hard tissue surgery, and materials processing. 2-μm novel solid-state lasers based on Tm3+-doped ceramics (Lu2O3 or Y2O3) or YAP crystals in-band pumped by a fiber laser at 1670 nm are presented in this report. CW, actively or passively Q-switch operations of the Tm3+-doped lasers are described. The Tm3+ laser characteristics are compared with parameters of an in-band fiber-laser-pumped Ho3

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18

Lempicki, A. "PRESENT STATUS OF LIQUID LASERS." Annals of the New York Academy of Sciences 122, no. 2 (2006): 596–97. http://dx.doi.org/10.1111/j.1749-6632.1965.tb20239.x.

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19

Gong, Jue, Peizhen Xu, Yixiao Gao, et al. "Proposed liquid-cooled nanowire lasers." Optics Express 26, no. 4 (2018): 4665. http://dx.doi.org/10.1364/oe.26.004665.

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20

Liu, Shunxiang, Hongfu Huang, Jinsheng Lu, Ning Xu, Junle Qu, and Qiao Wen. "Liquid-Phase Exfoliation of Ta2NiS5 and Its Application in Near-Infrared Mode-Locked Fiber Lasers with Evanescent Field Interactions and Passively Q-Switched Bulk Laser." Nanomaterials 12, no. 4 (2022): 695. http://dx.doi.org/10.3390/nano12040695.

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We report on the application of a 1 μm solid-state passively Q-switched (PQS) laser and 1, 1.5 μm mode-locked (ML) fiber lasers based on ternary chalcogenide Ta2NiS5 saturable absorber (SA), which were successfully fabricated by liquid-phase exfoliation method (LPE). The nonlinear absorption of the Ta2NiS5-SA was characterized by 0.32 GW/cm2 and 0.25 GW/cm2 saturation intensities with 7.3% and 5.1% modulations depths at 1 μm and 1.5 μm, respectively. A PQS solid-state laser operating at 1.0 μm has been realized with the Ta2NiS5-SA. The maximum average output power, shortest pulse width, pulse

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21

Hamja, A., R. Florentin, S. Chénais, and S. Forget. "Highly photo-stable, kHz-repetition-rate, diode pumped circulation-free liquid dye laser with thermal lens management." Applied Physics Letters 120, no. 11 (2022): 113301. http://dx.doi.org/10.1063/5.0083867.

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Liquid dye lasers have long been considered as ideal tunable laser sources in the visible range but are bulky, expensive, and require a complex system for dye circulation. Here, we present a system that relies on a low-cost blue laser diode as the pump source and a sealed dye cell with no flowing circuitry, resulting in a device that combines the convenience and size of a solid-state device with the stability of a liquid organic laser. A very high photo-stability is obtained (up to 1.2 × 109 pulses or 12 days at 1 kHz), which is five orders of magnitude higher than a solid-state dye laser oper

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22

Jażdżewska, M. "Effects of Co2 and Nd:YAG Laser Remelting of the Ti6Al4V Alloy on the Surface Quality and Residual Stresses." Advances in Materials Science 20, no. 1 (2020): 82–90. http://dx.doi.org/10.2478/adms-2020-0005.

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AbstractThe titanium alloys are materials susceptible to tribological wear and the laser treatment can be applied in surface treatment processes to obtain for example higher hardness level. From the other side, it is important to take into consideration, that hardness increase that can be connected with cracks. The aim of this research was to investigate the effects of different lasers and the process parameters on the form and level of residual stresses in the Ti6Al4V alloy, which determine the initiation and propagation of cracking. Two lasers were used, the CO2 and Nd:YAG lasers. The specim

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23

Brown, Calum M., Daisy K. E. Dickinson, and Philip J. W. Hands. "Diode pumping of liquid crystal lasers." Optics & Laser Technology 140 (August 2021): 107080. http://dx.doi.org/10.1016/j.optlastec.2021.107080.

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24

Barna, Valentin, and Luisa De Cola. "Mirrorless dye doped ionic liquid lasers." Optics Express 23, no. 9 (2015): 11936. http://dx.doi.org/10.1364/oe.23.011936.

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25

FURUMI, Seiichi. "Chiral Photonic Band Liquid Crystal Lasers." Review of Laser Engineering 34, no. 5 (2006): 363–68. http://dx.doi.org/10.2184/lsj.34.363.

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26

Gardiner, Damian J., Stephen M. Morris, Philip J. W. Hands, et al. "Paintable band-edge liquid crystal lasers." Optics Express 19, no. 3 (2011): 2432. http://dx.doi.org/10.1364/oe.19.002432.

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27

Mowatt, Carrie, Stephen M. Morris, Timothy D. Wilkinson, and Harry J. Coles. "High slope efficiency liquid crystal lasers." Applied Physics Letters 97, no. 25 (2010): 251109. http://dx.doi.org/10.1063/1.3526750.

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28

Huestis, David L. "Challenges for lasers in liquid oxygen." Chemical Physics Letters 411, no. 1-3 (2005): 108–10. http://dx.doi.org/10.1016/j.cplett.2005.06.029.

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29

Morris, S. M., A. D. Ford, M. N. Pivnenko, and H. J. Coles. "Enhanced emission from liquid-crystal lasers." Journal of Applied Physics 97, no. 2 (2005): 023103. http://dx.doi.org/10.1063/1.1829144.

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30

Coleman, Andrew P., Mark Nieuwenhuyzen, Harvey N. Rutt, and Kenneth R. Seddon. "Novel ionic media for liquid lasers." Journal of the Chemical Society, Chemical Communications, no. 23 (1995): 2369. http://dx.doi.org/10.1039/c39950002369.

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31

Zhang, Han, Anirudh Balram, Dennis Desheng Meng, and Yuze Sun. "Optofluidic Lasers with Monolayer Gain at the Liquid–Liquid Interface." ACS Photonics 4, no. 3 (2017): 621–25. http://dx.doi.org/10.1021/acsphotonics.6b00983.

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32

Miha, Papič, Mur Urban, Poyil Zuhail Kottoli, Ravnik Miha, Muševič Igor, and Humar Matjaž. "Topological liquid crystal superstructures as structured light lasers." Proceedings of the National Academy of Sciences 118, no. 49 (2021): e2110839118. https://doi.org/10.1073/pnas.2110839118.

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Liquid crystals (LCs) form an extremely rich range of self-assembled topological structures with artificially or naturally created topological defects. Some of the main applications of LCs are various optical and photonic devices, where compared to their solid state counterparts soft photonic systems are fundamentally different in terms of unique properties such as self-assembly, self-healing, large tunability, sensitivity to external stimuli and biocompatibility. Here we show that complex tunable microlasers emitting structured light can be generated from self-assembled topological LC superst

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33

Sato, Hidetoshi, Norihito Saito, Kazuyuki Akagawa, Satoshi Wada, and Hideo Tashiro. "Electronically Tunable-Laser Light Sources for near Infrared Spectroscopy." Journal of Near Infrared Spectroscopy 11, no. 4 (2003): 295–308. http://dx.doi.org/10.1255/jnirs.375.

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This review paper focuses primarily on the recent progress in the development of electronically-tuned solid-state lasers and their application in near infrared (NIR) absorption and Raman spectroscopies. It also discusses the expansion of the tunable range and the generation of ultrashort pulses. Electronic control of laser wavelengths using an acousto-optical tunable filter (AOTF) was developed to provide rapid, accurate and random access to numerous wavelengths offering a programmable monochromatic energy under computer control. In contrast to tunable diode lasers that are for specific gaseou

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34

Zhang, Tianqi, Mudong Wang, Yang Xue, Jinlong Xu, Zhenda Xie, and Shining Zhu. "Liquid metal as a broadband saturable absorber for passively Q-switched lasers." Chinese Optics Letters 18, no. 11 (2020): 111901. http://dx.doi.org/10.3788/col202018.111901.

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35

Kozlovsky, Vladimir, Marat Butaev, Yury Korostelin, Stanislav Leonov, Yan Skasyrsky, and Mikhail Frolov. "Study of Fe:ZnSe Laser Exited by Diode Side-Pumped Er:YAG Laser." Photonics 10, no. 8 (2023): 869. http://dx.doi.org/10.3390/photonics10080869.

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The performance of a Fe:ZnSe laser was investigated in different schemes of excitation by a pulsed diode side-pumped Er:YAG laser. At the temperature of liquid nitrogen, the Fe:ZnSe laser, pumped by a free running 360-μs Er:YAG laser and demonstrated a pulse energy of 53 mJ with a slope efficiency of 42% relative to absorbed pump energy. When operating at room temperature, two optical schemes were considered. In the first one, the Fe:ZnSe laser crystal was pumped by a Q-switched Er:YAG laser with a passive shutter based on an additional Fe:ZnSe crystalline plate, and the cavities of both laser

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36

Xu, Xianfan, and David A. Willis. "Non-Equilibrium Phase Change in Metal Induced by Nanosecond Pulsed Laser Irradiation." Journal of Heat Transfer 124, no. 2 (2001): 293–98. http://dx.doi.org/10.1115/1.1445792.

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Materials processing using high power pulsed lasers involves complex phenomena including rapid heating, superheating of the laser-melted material, rapid nucleation, and phase explosion. With a heating rate on the order of 109K/s or higher, the surface layer melted by laser irradiation can reach a temperature higher than the normal boiling point. On the other hand, the vapor pressure does not build up as fast and thus falls below the saturation pressure at the surface temperature, resulting in a superheated, metastable state. As the temperature of the melt approaches the thermodynamic critical

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37

Schmidtke, Jürgen, Gisela Jünnemann, Susanne Keuker-Baumann, and Heinz-Siegfried Kitzerow. "Electrical fine tuning of liquid crystal lasers." Applied Physics Letters 101, no. 5 (2012): 051117. http://dx.doi.org/10.1063/1.4739840.

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38

Toronov, Vladislav Yu, and Vladimir L. Derbov. "Geometric phases in lasers and liquid flows." Physical Review A 49, no. 2 (1994): 1392–99. http://dx.doi.org/10.1103/physreva.49.1392.

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39

Morris, S. M., A. D. Ford, C. Gillespie, M. N. Pivnenko, O. Hadeler, and H. J. Coles. "The emission characteristics of liquid-crystal lasers." Journal of the Society for Information Display 14, no. 6 (2006): 565. http://dx.doi.org/10.1889/1.2210808.

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40

Cao, W., P. Palffy-Muhoray, B. Taheri, A. Marino, and G. Abbate. "Lasing Thresholds of Cholesteric Liquid Crystals Lasers." Molecular Crystals and Liquid Crystals 429, no. 1 (2005): 101–10. http://dx.doi.org/10.1080/15421400590930782.

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41

Xu, Nannan, Xinxin Shang, Shuo Sun, et al. "Low-Threshold, Multiple High-Order Harmonics Fiber Laser Employing Cr2Si2Te6 Saturable Absorber." Nanomaterials 13, no. 6 (2023): 1038. http://dx.doi.org/10.3390/nano13061038.

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Abundant research findings have proved the value of two-dimensional (2D) materials in the study of nonlinear optics in fiber lasers. However, there remains two problems: how to reduce the start-up threshold, and how to improve the damage threshold, of fiber lasers based on 2D materials. A 15.1 mW low-threshold mode-locked fiber laser, based on a Cr2Si2Te6 saturable absorber (SA) prepared by the liquid-phase exfoliation method, is demonstrated successfully in this work. This provides a useful and economical method to produce SAs with low insertion loss and low saturation intensity. Besides, mul

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42

Алёшкин, В. Я., Н. В. Байдусь, О. В. Вихрова та ін. "Стимулированное излучение на длине волны 1.3 mum в метаморфной структуре InGaAs/InGaAsP с квантовыми ямами, выращенной на подложке Ge/Si (001)". Письма в журнал технической физики 44, № 16 (2018): 67. http://dx.doi.org/10.21883/pjtf.2018.16.46478.17282.

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AbstractA laser structure comprising metamorphic InGaAsP layer and InGaAs quantum wells on a non-inclined Si(001) substrate with relaxed Ge buffer layer has been grown for the first time by metal-organic vapor phase epitaxy (MOVPE). The optically pumped lasers exhibit stimulated emission at a wavelength of 1.3 μm. At liquid-nitrogen temperature, the threshold power density of pumping at 0.8 μm amounted to 250 kW/cm^2.

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43

Lindner, Stefan, Jakob Hayden, Andreas Schwaighofer, et al. "External Cavity Quantum Cascade Laser-Based Mid-Infrared Dispersion Spectroscopy for Qualitative and Quantitative Analysis of Liquid-Phase Samples." Applied Spectroscopy 74, no. 4 (2020): 452–59. http://dx.doi.org/10.1177/0003702819892646.

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Acquisition of classical absorption spectra of liquids in the mid-IR range with quantum cascade lasers (QCLs) is often limited in sensitivity by noise from the laser source. Alternatively, measurement of molecular dispersion (i.e., refractive index) spectra poses an experimental approach that is immune to intensity fluctuations and further offers a direct relationship between the recorded signal and the sample concentration. In this work, we present an external cavity quantum cascade laser (EC-QCL) based Mach–Zehnder interferometer setup to determine dispersion spectra of liquid samples. We pr

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44

Chen, Si, Fengpeng Wang, Fangguang Kuang, et al. "Femtosecond Pulsed Fiber Laser by an Optical Device Based on NaOH-LPE Prepared WSe2 Saturable Absorber." Nanomaterials 12, no. 16 (2022): 2747. http://dx.doi.org/10.3390/nano12162747.

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We report on all-optical devices prepared from WSe2 combined with drawn tapered fibers as saturable absorbers to achieve ultrashort pulse output. The saturable absorber with a high damage threshold and high saturable absorption characteristics is prepared for application in erbium-doped fiber lasers by the liquid phase exfoliation method for WSe2, and the all-optical device exhibited strong saturable absorption characteristics with a modulation depth of 15% and a saturation intensity of 100.58 W. The net dispersion of the erbium-doped fiber laser cavity is ~−0.1 ps2, and a femtosecond pulse ou

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45

Wan, Yuan, and Luogen Deng. "Pump-Controlled Plasmonic Random Lasers from Dye-Doped Nematic Liquid Crystals with TiN Nanoparticles in Non-Oriented Cells." Applied Sciences 10, no. 1 (2019): 199. http://dx.doi.org/10.3390/app10010199.

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Manipulation of the performance of the random lasers from dye-doped nematic liquid crystals with TiN nanoparticles in non-oriented cells is studied. The experimental results show that the introduction of TiN nanoparticles into dye-doped nematic liquid crystals significantly reduces the threshold of random lasing due to the localized surface plasmon resonance of TiN nanoparticles. The emission spectrum of random lasers can be controlled by the shape of the pump spot. The threshold of random lasers increases with the decrease of the length of pump stripe. In order to obtain the emission spectrum

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Dernovich, O. P., N. V. Gusakovа, V. E. Kisel, et al. "In-Band Pumped Continuous-Wave Lasers Based on Ho:KY(WO₄)₂ Crystal and Ho:KGdYbY(WO₄)₂ Epitaxial Layer." Devices and Methods of Measurements 11, no. 4 (2020): 264–71. http://dx.doi.org/10.21122/2220-9506-2020-11-4-264-271.

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2 μm lasers are in demand for a number of practical applications, such as environmental monitoring, remote sensing, medicine, material processing, and are also used as a pump sources for optical parametric generators. Crystals of double potassium tungstates doped with ions of rare-earth elements were shown to be promising materials both for the creation of classical solid-state lasers and waveguide lasers. The aim of this work was to develop a tunable pump laser in the spectral region of 1.9 µm based on double tungstate crystals doped with thulium ions and to study the lasing characteristics o

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Miller, Johanna L. "Bubble lasers can be sturdy and sensitive." Physics Today 77, no. 3 (2024): 12–14. http://dx.doi.org/10.1063/pt.xafv.lnix.

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Hu, Ronghao, Zheng Gong, Jinqing Yu, et al. "Ultrahigh brightness attosecond electron beams from intense X-ray laser driven plasma photocathode." International Journal of Modern Physics A 34, no. 34 (2019): 1943012. http://dx.doi.org/10.1142/s0217751x19430127.

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The emerging intense attosecond X-ray lasers can extend the Laser Wakefield Acceleration mechanism to higher plasma densities in which the acceleration gradients are greatly enhanced. Here we present simulation results of high quality electron acceleration driven by intense attosecond X-ray laser pulses in liquid methane. Ultrahigh brightness electron beams can be generated with 5-dimensional beam brightness over [Formula: see text]. The pulse duration of the electron bunch can be shorter than 20 as. Such unique electron sources can benefit research areas requiring crucial spatial and temporal

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Petriashvili, Gia, Mauro Daniel Luigi Bruno, Maria Penelope De Santo, and Riccardo Barberi. "Temperature-tunable lasing from dye-doped chiral microdroplets encapsulated in a thin polymeric film." Beilstein Journal of Nanotechnology 9 (January 31, 2018): 379–83. http://dx.doi.org/10.3762/bjnano.9.37.

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In the last decade, much interest has grown around the possibility to use liquid-crystal droplets as optical microcavities and lasers. In particular, 3D laser emission from dye-doped cholesteric liquid crystals confined inside microdroplets paves the way for many applications in the field of sensors or tunable photonics. Several techniques can be used to obtain small microresonators as, for example, dispersing a liquid crystal inside an immiscible isotropic fluid to create an emulsion. Recently, the possibility to obtain a thin free-standing film starting from an emulsion having a mixture of w

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Fieser, David, Yucheng Lan, Antonino Gulino, et al. "Synthesis and Unique Behaviors of High-Purity HEA Nanoparticles Using Femtosecond Laser Ablation." Nanomaterials 14, no. 6 (2024): 554. http://dx.doi.org/10.3390/nano14060554.

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High-entropy alloys (HEAs) are a class of metal alloys consisting of four or more molar equal or near-equal elements. HEA nanomaterials have garnered significant interest due to their wide range of applications, such as electrocatalysis, welding, and brazing. Their unique multi-principle high-entropy effect allows for the tailoring of the alloy composition to facilitate specific electrochemical reactions. This study focuses on the synthesis of high-purity HEA nanoparticles using the method of femtosecond laser ablation synthesis in liquid. The use of ultrashort energy pulses in femtosecond las

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