We report the fabrication of a novel fiber-optic sensor device, based on use microsphere conformally coated with thin layer zinc oxide (ZnO) by atomic deposition (ALD), and its as refractive index sensor. The was prepared tip single-mode optical fiber, which conformal ZnO film 200 nm deposited using an ALD process diethyl (DEZ) water at 100 °C. modified examined scanning electron microscopy Raman spectroscopy. Theoretical modeling has been carried out to assess structure performance,...

The paper quotes the results of investigations concerning planar optical waveguides with a high value refractive index, achieved basing on broad-band gap semiconductor ZnO, deposited glass or quartz substrates.The were focused properties waveguides, determining modal characteristics, attenuation coefficient and structure surface.

Abstract The paper presents investigations concerning the design and realization of photonic structures with grating couplers. first part deals basic theoretical information on couplers their application in optoelectronics. further results numerical shows influence geometrical parameters effectiveness input output optic power into out this structure. also provides experimental a wideband gap semiconductor, viz. zinc oxide ZnO, as well its planar waveguide

The paper deals with investigations concerning a wide-band gap material, viz.zinc oxide ZnO.Special attention has been devoted to the determination of spectral transmission zinc layers deposited on quartz substrates.These have made it possible determine optical range in which this material is transparent as well edges absorption.The presented are valuable particularly application optoelectronic and photonic structures systems waveguides sensor integrated optics.

The paper presents the results of investigations concerning sensor structures based on porous layers zinc oxide (ZnO) sensitive to a selected gaseous environment.The comprised analyses inuence environment optical properties structure, in particularly change spectral characteristics transmission within range ultraviolet light and visible range.These presented were carried out such as nitrogen dioxide NO2 synthetic air.

Abstract The paper presents the results of investigations zinc oxide (ZnO) layers as a potential sensing material, being affected by certain selected gaseous environments. concerned optical transmission through thin ZnO in wide spectral ranges from ultraviolet to near infrared. effect environment on properties with thickness ~ 400 nm was analyzed applying various technologies manufacturing. Three kinds were exposed environment, viz.: relatively slight roughness (RMS several nm), considerable...

In this work we present the fabrication and characterization of a diamond film which can be utilized in construction optical sensors for investigation biological samples. We produced nitrogen-doped (NDD) using microwave plasma enhanced chemical vapor deposition (MWPECVD) system. The NDD was investigated with use scanning electron microscopy (SEM), atomic force (AFM) Raman spectroscopy. used fiber optic sensor. This sensor is based on Fabry–Pérot interferometer working reflective mode as...

This paper presents a concept of an endomicroscope for early detection neoplastic lesions in the human stomach tissue, based on swept source optical coherence tomography (SS-OCT) and measurement probe with integrated Mirau micro interferometer. The system consists pigtailed illumination blocks, connected via Gradient Index (GRIN) lens collimator to micro-opto-electro-mechanical systems (MOEMS) (4 mm × 4 20 mm). technology interferometer is vertical multi-wafer bonding approach. MOEMS...

One of the most fundamental examination in intensive care medicine is cardiac output measurement, realized by pulmonary artery catherization.The thermodilution estimation method not resistant to various kinds disturbances, which significantly decreases its sensitivity and specificity.The paper depicts investigations related analysis presumable new source unreliability -asymmetric blood flow through vessels.The consisted two phases: clinical (to obtain anatomical data) computer modeling...

In the paper, results of technological investigations on planar optical waveguides based high band gap oxide semiconductors were presented.Investigations concerned technologies depositing very thin layers of: zinc ZnO, titanium dioxide TiO2 and tin SnO2 substrates quartz glass plates.There investigated both morphological structures produced their properties.The paper also presents technology input-output light systems in Bragg grating structures.

Design and numerical analyses of the planar grating coupler The paper presents results structures integrated optics in form waveguides made materials with high values refractive index n = 2.00 an input-output system Bragg couplers. investigations were carried out by using FDTD method (Finite Difference Time Domain method).

Abstract The paper presents the results of numerical analyses optical structures realized in form planar waveguides made materials with high values refractive index n ≈1.85. analysed consist a waveguide and input-output systems. Input-output couplers are prisms as well Bragg’s grating couplers. Numerical investigations were carried out by applying finite difference time domain (FDTD) method.

Abstract The paper presents the results of investigations concerning application zinc oxide - a wideband gap semiconductor in optical planar waveguide structures. ZnO is promising semiconducting material thanks to its attractive properties. were focused on determination technology depositions and annealing layers their Special attention was paid characteristics refractive index coefficients spectral transmission within UV-VIS-NIR range. Besides that, also mode attenuation light obtained...

Abstract This paper presents the results of investigations concerning input-output systems an electromagnetic wave in visible and near spectrum for their application structures integrated optics. The used described planar optical waveguides are a form prism grating couplers. first part contains numerical analysis couplers aiming at optimization geometrical parameters, strictly — depth grooves coupler. second practical realization, as well experimental tests waveguide with hybrid system. As...

The paper presents investigations concerning the analysis of photonic structures with grating couplers.In basic theoretically information on couplers is presented.The results numerical are discussed, too.Investigations show an essential influence geometrical parameters effectiveness input and output optic power into out this structure.In selected experimental realizations based zinc oxide ZnO presented.

An optical fiber interferometer using nanocrystalline boron‐doped diamond film is investigated. The films are deposited on glass plates a Microwave Plasma‐Enhanced Chemical Vapor Deposition (µPE CVD) system. growth time 3 h, with boron doping level of 10 000 ppm producing (B‐NCD‐10) thickness ≈200 nm. presence atoms in the evident Raman spectrum as peaks at 1212 and 1306 cm −1 . scanning electron microscopy (SEM) images show homogenous continuous surface morphology, thus enabling use...

In this paper we introduce a 2-axis MEMS micro-scanner with large scanning range of frame (32°) and mirror (22°) using compact optimized electrothermal bimorph actuator torsional beams to tip tilt dual-reflective plate.

In the rapid evolution of gastrointestinal endomicroscopy, optical coherence tomography (OCT) has found many diverse applications. Until recently, micro-opto-electro-mechanical systems (MOEMS) technology been playing a key role in shaping miniaturization these components. We report here, to best our knowledge, novel endoscopic microsystem. It is based on spectrally tuned MOEMS Mirau micro-interferometer integrated with micro-electro-mechanical (MEMS) electro-thermal micro-scanner, operating...

Optical biosensors have become a powerful alternative to the conventional ways of measurement owing their great properties, such as high sensitivity, dynamic range, cost effectiveness and small size. Choice an optical biosensor's materials is important factor impacts quality obtained spectra. Examined biological objects are placed on cover layer which may react with samples in chemical, mechanical way, therefore having negative impact reliability. Diamond, metastable allotrope carbon...