This paper presents a systematic review of long period fiber gratings (LPFGs) written by the CO2 laser irradiation technique. Firstly, various fabrication techniques based on CO2 laser irradiations are demonstrated to write LPFGs in different types of optical fibers such as conventional glass fibers, solidcore photonic crystal fibers, and air-core photonic bandgap fibers. Secondly, possible mec...

The aims of this study were to evaluate the results of CO2 laser surgery alone and CO2 laser surgery combined with radiotherapy in patients with T2N0M0 glottic carcinoma. A retrospective analysis was conducted of 35 cases of T2N0M0 glottic carcinoma. Fourteen patients with normal vocal cord mobility were treated with endoscopic CO2 laser surgery alone. The remaining 21 patients were treated wit...

Methods 60 healthy C57 black mice were randomly allocated to 6 groups including control group, model group, 10.6μm CO2 laser group, 650nm laser group, combined laser group (combined 10.6μm CO2 laser and 650nm laser) and sham group. Each treating group received irradiation from different lasers at Dubi (ST35) for 90s in a total of 15 sessions. The sham group also received treatment with the lase...

Rhinophyma is a benign and disfiguring tumor of the nose, affecting white old men. It represents the end stage of acne rosacea. Hypertrophy of the sebaceous apparatus and fibrosis lead to an enlarged, erythematous nasal tip with comedones. Treatment modalities include Isotretinoin (Which is not effective on severe rhinophyma), freehand scalpel shave, cryosurgery, electrocautery, dermabras...

Aim: The aim of the study is to compare efficacy fractional carbondioxide laser assisted topical antifungal therapy with alone for treatment onychomycosis in adult north Indian population.Methods: We investigated 50 clinically suspected patient’s nails both gender and aged above 18 years by KOH examination Culture. patients were then randomly divided two groups, Group A B 25 each group. Patient...

BACKGROUND Melasma is a common pigmentary disorder that remains resistant to available therapies. Facial resurfacing with the pulsed CO2 laser has been reported successful but requires significant downtime, and there is a risk of adverse sequelae. OBJECTIVE To determine if melasma will respond to a new treatment paradigm, fractional resurfacing. METHODS Ten female patients (Fitzpatrick skin...

Absorption coefficients of the carbon dioxide (CO2) were measured at atmospheric pressure and room temperature by photoacoustic technique with a cw, line-tunable, frequency stabilized CO2 laser. The CO2 laser spectrum of our system consists in 53 lines with wavelengths ranging from 9.2 μm to 10.8 μm and power levels below 5 W. Measured values of the CO2 absorption coefficients are typically of ...

introduction: the aim of this study was to assess the caries-preventive potential of carbon dioxide (co2) laser application in conjunction with the use of titanium tetra fluoride solution on the enamel adjacent to bracket. methods: seventy-five freshly extracted bovine incisors were used. in order to attach the brackets, the area of examination was covered with adhesive tape to limit acid etchi...