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Patients with rheumatoid arthritis (RA) exhibit an increased risk of dementia. Disease-modifying antirheumatic drugs (DMARDs) are commonly used to slow RA progression, but studies investigating the relationship between DMARDs and dementia in patients with RA are lacking. We investigated the relationship between DMARDs and dementia in patients with RA.Using the National Health Insurance Research Database,...
A handheld, battery-powered intracavity singly resonant optical parametric oscillator (IC-SRO) emitting 3.5 μm, 39 mW CW radiation is demonstrated. The lasing threshold of the IC-SRO (end-pumped by a 808 nm diode) is 120 mW.
A new QPM structure is proposed to improve the efficiency when the first-order QPM domain length is too short to be fabricated. SHG efficiency 4.69 times higher than the third-order QPM is experimentally demonstrated.
We achieved high conversion efficiency in quasi-phase-matched (QPM) sum frequency generation (SFG) of compact CW fiber lasers in periodically-poled 8mol% MgO-doped congruent LiTaO3 (MCLT) which technology of the crystal is still developing and periodically-poled 5mol% MgO-doped congruent LiNbO3 (MCLN) to obtain a tunable and visible light source. The conversion efficiency of SFG is over 10% in a MCLT...
Periodically poled congruent lithium tantalite (PPCLT) and periodically poled congruent lithium niobate (PPCLN)-based quasi phase matched (QPM) difference frequency generation (DFG) conversion systems are developed for inclusion in a mid-IR spectrometer providing a wavelength tunable and efficient conversion solution. Using two continuous wave (CW) fiber lasers the conversion efficiency of DFG CLT...
Summary form only given. We optimized waveguide designs for mixing 755-785 nm with 1064 nm to generate 2.6-3.0 /spl mu/m based on previously developed models of the linear and nonlinear properties of annealed proton exchanged (APE) LiNbO/sub 3/ waveguides. To solve the mode-coupling problem we developed a hybrid waveguide structure. The input region is single moded at both near-IR input wavelengths,...
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