We report on a high-efficiency 461 nm blue light conversion from an external cavityenhanced second-harmonic generation of a 922 nm diode laser with a quasi-phasematched KTP crystal (PPKTP). By choosing a long crystal (LC = 20mm) and twice looser focusing (w0 = 43μm) than the ”optimal” one, thermal lensing effects due to the blue power absorption are minimized while still maintaining near-optima...

BACKGROUND The aim of this study is to evaluate the resection of hyperplastic lesions on the buccal mucosa comparing the 532nm laser (KTP), versus diode 980nm laser, considering pain, scarring, inflammation and drug consumption that occurred postoperatively with each lasers. MATERIAL AND METHODS A prospective study of consecutive series of 20 patients in two groups that presents hyperplastic ...

OBJECTIVE THE AIM OF THIS STUDY WAS TO EVALUATE THE MINERAL CONTENT OF DENTIN IRRADIATION WITH ERBIUM: yttrium-aliminum-garnet (Er:YAG), Neodmiyum:yttrium-aliminum garnet (Nd:YAG) and potassium titanium phosphate (KTP) laser used for in the treatment of dentin hypersensitivity. METHODS Six extracted wisdom, unerupted molar teeth were used in this study. The enamel of the teeth was removed wit...

Penelitian ini digunakan untuk melihat kepuasan masyarakat terhadap pelayanan E-KTP di Dinas Kependudukan dan Pencatatan Sipil (Dispendukcapil) Kabupaten Sragen, yang dilaksanakan saat pandemi Covid-19 sehingga dapat sebagai acuan penilaian publik masa pandemi. Pelayanan dinilai menggunakan 5 variabel yaitu, bukti fisik (tangible), kehandalan (reliability), daya tanggap (responsiveness), jamina...

This thesis deals with the fabrication and the characterization of periodically-poled crystals for use in lasers to generate visible and UV radiation by second-harmonic generation (SHG) through quasi-phasematching (QPM). Such lasers are of practical importance in many applications like high-density optical storage, biomedical instrumentation, colour printing, and for laser displays. The main go...

PURPOSE Laser therapy provides an alternative option for treating non-muscle-invasive bladder cancer (NMIBC). However, the clinical evidence for potassium-titanyl-phosphate (KTP) laser en bloc resection is still limited. Here, we investigated the efficacy and safety of the 120-W front-firing KTP laser for the treatment of NMIBC. METHODS A total of 64 patients with NMIBC treated with either a ...

In this paper periodically domain-inverted (PDI) ferroelectric crystals are studied using high-resolution X-ray diffraction. Rocking curves and reciprocal-space maps of the principal symmetric Bragg reflections in LiNbO3 (LN) (Λ = 5 µm), KTiOPO4 (KTP) (Λ = 9 µm) and KTiOAsO4 (KTA) (Λ = 39 µm) are presented. For all the samples strong satellite reflections were observed as a consequence of the P...