The properties of diode-pumped lasers with gradient-index (GRIN)-mirror resonators are described. The total loss of typical GRIN elements is measured and is found to be comparable with conventional mirrors. The efficiency, threshold, and modal quality of GRIN-mirror Nd:YAG lasers are shown to compare favorably with conventional designs. In addition, a polarized single-frequency laser that uses GRIN elements in conjunction with metal-film étalons is constructed and is shown to deliver output powers comparable with those of more complicated single-frequency designs.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1364/AO.33.005537 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Novel Chlorin with a HYNIC: Synthesis, Tc-Radiolabeling, and Initial Preclinical Evaluation.
Molecules
December 2024
M. V. Lomonosov Institute of Fine Chemical Technology, MIREA-Russian Technological University, 86 Vernadsky Av., 119571 Moscow, Russia.
The use of radiopharmaceuticals for diagnostics in oncology allows for the detection of the disease at an early stage. Among diagnostic radionuclides, Tc is a promising isotope that has been used to create several drugs for clinical use. One of the most effective Tc chelators is 6-hydrazinylnicotinic acid (HYNIC), which, when combined with various vector molecules, can be used for targeted delivery of radionuclides to tumor tissues.
View Article and Find Full Text PDFMiniscope Imaging of Nucleus Accumbens Neural Activity in Freely Behaving Rats: Virus Injection, Gradient Index Lens Implantation, Recording Strategies, and Analytical Methods.
Curr Protoc
January 2025
Intramural Research Program, National Institute on Drug Abuse, Baltimore, Maryland.
In vivo calcium imaging in freely moving rats using miniscopes provides valuable information about the neural mechanisms of behavior in real time. A gradient index (GRIN) lens can be implanted in deep brain structures to relay activity from single neurons. While such procedures have been successful in mice, few reports provide detailed procedures for successful surgery and long-term imaging in rats, which are better suited for studying complex human behaviors.
View Article and Find Full Text PDF[Deep brain imaging by using GRIN lens].
Nihon Yakurigaku Zasshi
January 2025
Endowed Department of Cognitive Function and Pathology, Institute of Brain Science, Nagoya City University Graduate School of Medical Sciences.
Elucidating the neural mechanisms governing changes in individual animal behavior is a key goal in neuroscience. Such research has important implications for behavioral pharmacology and could lead to the development of treatments for psychiatric and neurological disorders. Given that the brain likely represents vast amounts of information through the combined activity of multiple neurons, studying these mechanisms requires the simultaneous recording of many neurons.
View Article and Find Full Text PDFAtmospheric reaction of CH=CHCHOCFCHF with OH radicals and Cl atoms, UV and IR absorption cross sections, and global warming potential.
Environ Sci Pollut Res Int
December 2024
Departamento de Química Física, Facultad de Ciencias y Tecnologías Químicas, Universidad de Castilla-La Mancha, Avda. Camilo José Cela, 1B, 13071, Ciudad Real, Spain.
In this work, the rate coefficients for OH radical, k(T), and Cl atom, k(T), reaction with allyl 1,1,2,2-tetrafluoroethyl ether, CH=CHCHOCFCHF, were studied as a function of temperature and pressure in a collaborative effort made between UCLM, Spain, and LAPKIN, Greece. OH rate coefficients were determined in UCLM, between 263 and 353 K and 50-600 Torr, using the absolute rate method of pulsed laser photolysis-laser-induced fluorescence technique, while Cl kinetics were studied in temperature (260-363 K) and pressure (34-721 Torr) ranges, using the relative rate method of the thermostated photochemical reactor equipped with Fourier transform infrared spectroscopy as the detection technique. In both OH and Cl reactions, a negative temperature dependence of the measured rate coefficients was observed, which is consistent with complex association reactions.
View Article and Find Full Text PDFFreeform gradient index (F-GRIN) media are increasingly used in optical systems. The existing ray tracing methods for F-GRIN have low calculation efficiency and require manual adjustment of step size, making the design process complex. To address this, we propose an adaptive ray tracing (ART) method for F-GRIN.
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!