This thesis describes the design and construction of two laser systems to probe the 674nm transition of 88Sr+ ions in a linear Paul trap. The first laser system made use of a molecular transition in Iodine to stabilize the length of a Fabry-Perot cavity for laser locking. After constructing this laser, we measured an unsuitable experimental stability of 10 MHz over 5 minutes. A completely new m...

Aim: In this study, we aimed to evaluate the effects of four different photoactive dyes on dentin adhesion an epoxy resin-based root canal sealer.Methods: Sixty maxillary central incisors were used. Root canals prepared up size Reciproc #40, and 2.5 mL 5% NaOCl was used between each file. The teeth divided into six groups: Group 1, distilled water (the control group); 2, methylene blue; 3, tolu...

OBJECTIVES Dental caries and periodontal diseases are caused by infection of teeth and supporting tissues due to complex aggregate of bacteria known as biofilm, firstly colonized by streptococci. The main purpose of this in vitro study was to evaluate the antimicrobial effects of toluidine blue O (TBO) and Radachlorin® in combination with a diode laser on the viability of Streptococcus mutans. ...

Background: Au nanoparticles (AuNPs) exhibit very unique physiochemical and optical properties, which now are extensively studied in a range of medical diagnostic and therapeutic applications. AuNPs can be used for cancer clinical treatment with minimal invasion. On the other hand, curcumin is a polyphenol derived from turmeric which is used for medical purposes due to its anti...

PURPOSE To evaluate in a retrospective study the long-term usefulness of red 647 nm krypton and 670 nm diode laser for transscleral contact cyclophotocoagulation (CPC) in the treatment of therapy-resistant inflammatory glaucoma. METHODS The authors treated 48 eyes of 38 consecutive patients (mean age 36.8 years, range 6-81 years) with therapy-resistant inflammatory glaucoma secondary to chron...

Objectives The use of lasers for the treatment of periimplant hard and soft tissues is now refmore than ever before. Achieving bone integrity. The aim of this study is to evaluate the effects of Er:YAG, 980 nm and 810 nm diode lasers irradiation on biocompatibility of SLA titanium disks by SaOs2 cells morphology. Methods In this in-vitro study sixty sterile titanium disks with SLA surface were...

introduction: laser irradiation has been introduced in endodontic treatment due to its bactericidal effect. the aim of this study is to evaluate the bactericidal efficacy of a 940 nm diode laser alone or in combination with 5% sodium hypochlorite (naocl) against mature biofilms of e. faecalis . methods: sixty-eight (60 for the three groups, 4 for sem and 4 as negative controls) single-rooted hu...

introduction: diode laser irradiation has recently shown promising results for treatment of gingival pigmentation. this study sought to compare the efficacy of 2 diode laser irradiation protocols for treatment of gingival pigmentations, namely the conventional method and the sieve method. methods: in this split-mouth clinical trial, 15 patients with gingival pigmentation were selected and their...

The purpose of this article is to present several physics-based mathematical probabilistic models for Counter Directed Energy Weapon operational planning. The scenario analyzed is that of a surge of friendly Blue aircraft closing on a single High Energy Laser. The surge is a mixture of Blue active platforms, and Blue low-value decoys. Blue is targetable for a finite time. Blue response/measures...