We present the first study of Q-switched Alexandrite lasers under continuous-wave diode-pumping with operation up to 10 kHz repetition rates in TEM, with spatial quality M 1.15. With a pulsed-diode dual-end-pumped design, pulse energy is scaled to a record level of 3 mJ. We also demonstrate, for the first time, cavity-dumped Q-switching of diode-pumped Alexandrite lasers under continuous-wave and pulsed diode-pumping, up to 10 kHz. Pulse energy of 510 μJ is demonstrated with 3 ns pulse duration and 170 kW peak power, in TEM with M < 1.2. Second harmonic generation of the cavity-dumped Q-switched pulses was used to generate UV wavelength 379 nm with conversion efficiency of 47%.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1364/OE.24.027212 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
The Recurrence Rates at Three Years for the Conservatively Managed UTUC Cases Using NBI-Assisted Flexible Ureteroscopy and Holmium Laser Vaporization.
Medicina (Kaunas)
November 2024
Department of Urology, "St. John" Emergency Clinical Hospital, Vitan-Barzesti 13, District 4, 042122 Bucharest, Romania.
: This study aimed to evaluate the recurrence rates at three years for upper tract urothelial carcinoma (UTUC) cases managed conservatively, using Narrow Band Imaging (NBI)-assisted flexible ureteroscopy and Holmium laser vaporization. : The study group included 61 patients who were diagnosed with NBI-assisted visualization with superficial pyelo-calyceal urothelial tumor lesions, treated conservatively by the flexible ureteroscopic approach and Holmium laser vaporization, also assisted by NBI. This was compared with a control group with the same number of cases, which underwent the same procedure, but without NBI technology.
View Article and Find Full Text PDFFemtosecond Laser-Induced Photothermal Effects of Ultrasmall Plasmonic Gold Nanoparticles on the Viability of Human Hepatocellular Carcinoma HepG2 Cells.
Cells
December 2024
Institute of Solid State Physics, Bulgarian Academy of Sciences, Tzarigradsko Chaussee 72, 1784 Sofia, Bulgaria.
Laser-induced photothermal therapy using gold nanoparticles (AuNPs) has emerged as a promising approach to cancer therapy. However, optimizing various laser parameters is critical for enhancing the photothermal conversion efficacy of plasmonic nanomaterials. In this regard, the present study investigates the photothermal effects of dodecanethiol-stabilized hydrophobic ultrasmall spherical AuNPs (TEM size 2.
View Article and Find Full Text PDFA novel dual filtering mechanism for laser safety eyewear with polycarbonate lens coated by zirconium dioxide and silicon dioxide.
Lasers Med Sci
January 2025
Department of Physics, Shabestar Branch, Islamic Azad University, Shabestar, Iran.
In laser safety eyewear, due to the lack of complete blocking of ultraviolet and infrared rays, we proposed a structure based on one-dimensional multilayer composed of several layers of silicon dioxide and zirconium dioxide materials alternately behind polycarbonate lens. It is find out that the acceptance angle range to the photonic crystal is 0 to 39°. This incident angle range corresponds to the band gap of the photonic crystal.
View Article and Find Full Text PDFEffective treatment of xanthelasma palpebrarum using Er:YAG laser.
Lasers Med Sci
January 2025
Department of Plastic and Reconstructive Surgery, Korea University College of Medicine, Korea University Anam Hospital, Seoul, South Korea.
Xanthelasma palpebrarum (XP), characterized by soft, yellowish plaque primarily on the eyelids, is often associated with lipid metabolism disorders. XP can cause aesthetic concerns that affect social interactions and requires careful treatment evaluations due to potential complications and associations with systemic conditions. We aimed to assess the efficacy of and recurrence rates with erbium:yttrium aluminum garnet (Er:YAG) laser therapy in the treatment of XP.
View Article and Find Full Text PDFNd:YAG Laser Application for the Treatment of Retained Lens Fragment in the Anterior Chamber Following Cataract Surgery.
Turk J Ophthalmol
December 2024
University of Health Sciences Türkiye, Ulucanlar Eye Training and Research Hospital, Clinic of Ophthalmology, Ankara, Türkiye.
Cataract surgery is the most frequently performed surgery worldwide. Although it is an effective surgical treatment option for improving patients' visual acuity, various complications can occur postoperatively. One such complication is the presence of retained lens material in the anterior chamber, which can lead to intraocular inflammation, increased intraocular pressure, corneal edema, and endothelial cell loss.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!