BACKGROUND CO2 laser surgery is a treatment modality for cutaneous neurofibromas. OBJECTIVE Hypertrophic and atrophic scars can result from treatment with CO2 laser surgery. We present a case of cutaneous neurofibromatosis that developed hypertrophic scars postoperatively. METHODS Continuous wave CO2 laser surgery therapy was applied to the patient. RESULTS Hypertrophic scars developed 2 ...

Rare-earth-ion doped KY(WO4)2 (hereafter KYW) is a promising material for novel solid-state lasers. Low laser thresholds, high efficiencies, high output powers, and third-order nonlinear effects have stimulated research towards miniaturized thin-film waveguide lasers and amplifiers for future photonic devices. Active films can be fabricated by liquid-phase epitaxy (LPE), pulsed laser deposition...

BACKGROUND A verrucous epidermal nevus (VEN) is a skin disorder that has been treated using different treatment modalities with varying results. Ablative lasers such as carbon dioxide laser (CO2) and erbium:yttrium-aluminum-garnet (Er:YAG) laser have been considered as the gold standard for the treatment of epidermal nevi. OBJECTIVE To evaluate and compare the efficacy, postoperative wound he...

OBJECTIVE Microablative fractional CO2 laser has been proven to determine tissue remodeling with neoformation of collagen and elastic fibers on atrophic skin. The aim of our study is to evaluate the effects of microablative fractional CO2 laser on postmenopausal women with vulvovaginal atrophy using an ex vivo model. METHODS This is a prospective ex vivo cohort trial. Consecutive postmenopaus...

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...

A photoacoustic intracavity configuration is presented; a resonant photoacoustic cell excited in its First longitudinal mode is placed inside the cavity of a C 0 2 waveguide laser. Due to the high laser power and the sharp intracavity focus, saturation effects occur in the excitation and relaxation process of absorbing C 2H 4 molecules. A more optimal configuration is applied to measure the C2H...

A new accelerator LACARA is under construction at ATF, Brookhaven National Laboratory. LACARA is to be powered by a 1 TW CO2 laser, and will utilize a 6-T 2-m long solenoidal magnetic field. For a 50 MeV injected electron bunch, LACARA is expected to produce a 100 MeV 1 ps gyrating beam with ~ 3% energy spread. Beam electrons advance in phase at the laser frequency, executing one cycle each 35 ...