Optical-MSSW interaction has received wide interest for realization of thin film devices for optical signal processing at microwave signal frequency. In this paper, a device structure to obtain optical-MSSW interaction in a threedimensional optical waveguide using a multilayered garnet structure is proposed and analyzed. The multilayered structure enables optimization of the waveguide parameter...

A detailed study of the dependence of optical constants on thickness for vacuum-deposited hydrogenated amorphous silicon thin films is reported. The thicknesses of the films range from 190 nm to 540 nm. The refractive index n(λ), absorption coefficient α(λ), extinction coefficient k(λ) and consequently the band gap, are determined from the spectrophotometric measurements of the film transmittan...

background: identifying new ways to decrease adiposity have great importance for human health. we aimed to find out whether l – arginine (arg) and selenium alone or together can increase the effect of hypocaloric diet enriched in legumes (hdel) on anthropometric measures in healthy women with central obesity. methods: this randomized, double-blind, placebo-controlled trial was undertaken in 84 ...

OBJECTIVE To describe the changes observed with optical coherence tomography in group 2A idiopathic juxtafoveolar retinal telangiectasis. METHODS We retrospectively reviewed the medical records of 13 patients (25 eyes). All eyes underwent optical coherence tomography examination consisting of 6 radial scans, fundus color photography, and fluorescein angiography. We calculated retinal foveal a...

OBJECTIVE To examine differences in individual retinal layer thicknesses measured by spectral domain optical coherence tomography (SD-OCT) (Spectralis®) produced with age and according to sex. DESIGN Cross-sectional, observational study. METHODS The study was conducted in 297 eyes of 297 healthy subjects aged 18 to 87 years. In one randomly selected eye of each participant the volume and me...

AlxGa1 xN/AlN multiple quantum wells (MQWs) structures were grown by metalorganic vapour phase epitaxy (MOVPE) on pseudo AlN substrates using nitrogen as a carrier gas. Results of X-ray diffraction (XRD) and reciprocal space mapping (RSM) indicated no sign of strain relaxation in the quantum wells with respect to the AlN substrate. The MQW parameters such as thicknesses, growth rates and materi...

PURPOSE To investigate clinical factors associated with abnormal retinal morphologies in patients with primary Sjögren's syndrome (pSS). METHODS One-hundred-thirty patients with pSS who underwent immunoserological tests, minor salivary gland biopsies, and optical coherence tomography examinations were retrospectively analyzed. Risk factors for abnormally reduced peripapillary retinal nerve fi...

Skinfold Calipers are widely used to obtain subcutaneous adipose tissue thickness because of its non-invasive, simple and inexpensive technique. Nevertheless, Caliper skinfold thicknesses have the disadvantage of measuring compressed adipose tissue and double layers of skin, which might reduce the precision of these results. In contrast, the computerized optical device Lipometer was developed t...

Objectives. This study compared the macular and retinal nerve fibre layer (RNFL) thicknesses and optic nerves of eyes with reduced vision due to anisometropia with the contralateral healthy eyes in adults using optical coherence tomography (OCT). Methods. This cross-sectional study was conducted in Atatürk State Hospital, Sinop, Turkey. Macular and RNFL thicknesses, optic nerve disc area, cup a...