A 10-kHz pulse repetition frequency dye laser, end pumped by a Nd:YLF laser, is reported. This laser was tunable from 590 to 655 nm, and up to 2.55 W of output power was obtained at the 609-nm peak tuning wavelength. By inserting an etalon into the dye laser cavity and frequency doubling using a beta-barium borate crystal, we obtained up to 125 mW of 308-nm single-etalon-mode output, which shows potential for the performance of airborne measurements of tropospheric hydroxyl radical concentrations.
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http://dx.doi.org/10.1364/ao.41.001714 | DOI Listing |
Chem Commun (Camb)
January 2025
Department of Chemistry, Khalifa University, SAN Campus, Abu Dhabi, United Arab Emirates.
J Orthod
January 2025
Department of Oral Biology, Faculty of Dentistry, Suez Canal University, Ismailia, Egypt.
Aim: To compare microleakage beneath ceramic and metal brackets prepared with either acid etching or laser conditioning.
Design: An in vitro study.
Setting: Department of Orthodontics, Faculty of Dentistry, Suez Canal University, Ismailia, Egypt.
Lasers Surg Med
December 2024
Department of Dermatology, Veterans Health Administration, San Antonio, Texas, USA.
Objectives: Glomangiomas are benign vascular malformations that exist within the spectrum of glomuvenous malformations which consist of varying amounts of glomus cells, vascular spaces, and smooth muscle. Glomangiomas are often treated due to associated pain, particularly when located on pressure areas such as the back or extensor surfaces, which can cause difficulty with certain activities and occupational functions. Histologically glomangiomas consist of prominent dilated vascular spaces lined by glomus cells typically situated in the deep-dermis to subcutaneous fat which limits treatment to modalities capable of reaching the depth of the tumor including excision, sclerotherapy, and laser therapy.
View Article and Find Full Text PDFJ Funct Biomater
December 2024
Department of Emergency and Critical Care Medicine, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan.
Photodynamic therapy (PDT) is a minimally invasive treatment that elicits tumor apoptosis using laser light exclusively applied to the tumor site. IR-783, a heptamethine cyanine (HMC) dye, impedes the proliferation of breast cancer cells, even without light. Although studies have investigated the efficacy of IR-783 in cell and animal studies, its efficacy in clinical settings remains unknown.
View Article and Find Full Text PDFCureus
November 2024
Dermatology, University of California, San Diego, USA.
Papulopustular rosacea is an inflammatory subtype of rosacea that can significantly impair patients' quality of life. Available treatment options range from anti-inflammatory topical and oral medications to laser and light therapies. Photodynamic therapy with aminolevulinic acid (ALA-PDT) has emerged as a more recent treatment option for papulopustular rosacea.
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