[HTML][HTML] An automatic and intelligent optimal surface modeling method for composite tunnel structures

H Yang, X Xu, B Kargoll, I Neumann - Composite Structures, 2019 - Elsevier
Automatically modeling and intelligently monitoring composite tunnel structures is of great
significance considering the development of composite and diverse tunnel construction …

Multiple-pattern generating piezoelectric fiber scanner toward endoscopic applications

M Tekpınar, R Khayatzadeh… - Optical …, 2019 - spiedigitallibrary.org
We present a mode-optimized two-dimensional piezoelectric fiber actuator and a robust
actuation scheme to establish three different scan patterns with the same device. Having …

Unwarped Lissajous scanning with polarization maintaining fibers

R Khayatzadeh, O Ferhanoğlu… - IEEE Photonics …, 2017 - ieeexplore.ieee.org
Piezoelectric actuated fiber-scanners have often been employed in optical imaging of
tissues, owing to their compact size, low cost, and high resolution that is accompanied by …

Scanning fiber microdisplay: design, implementation, and comparison to MEMS mirror-based scanning displays

R Khayatzadeh, F Civitci, O Ferhanoglu, H Urey - Optics express, 2018 - opg.optica.org
In this study, we propose a compact, lightweight scanning fiber microdisplay towards virtual
and augmented reality applications. Our design that is tailored as a head-worn-display …

[HTML][HTML] Modeling a multilayer piezo-electric transducer by equivalent electro-mechanical admittance matrix

H Jalili, H Goudarzi, H Salarieh, G Vossoughi - Sensors and Actuators A …, 2018 - Elsevier
Piezoelectric transducers (sensors and actuators) are widely used to produce motion or to
sense displacement. One of the most applicable types of the piezo-electric transducers is a …

Synchronous imaging of multiple slices using higher-order bessel beams and a spherical lens

M Tekpınar, O Ferhanoğlu - IEEE Photonics Technology …, 2020 - ieeexplore.ieee.org
Higher-order Bessel-like optical beams can be created through off-axis coupling of light into
a multimode fiber. Thanks to the aberration that is inherent in spherical surfaces, through …

[HTML][HTML] Monitoring modal shape of miniaturized dynamic structures via laser triangulation and stroboscopy

YE Erdem, MB Yelten, O Ferhanoğlu - Microsystem Technologies, 2021 - Springer
We present a simple, low-cost and effective method to monitor mode-shapes of dynamic
structures, based on laser triangulation. Through the smart adjustment of the camera view …

A new modeling approach for stability of micro/nano bubbles

M Doğan, U Bunyatova, O Ferhanoğlu - IFAC-PapersOnLine, 2021 - Elsevier
Microbubbles and nanobubbles have several characteristics that are comparable with
millimeter-and centimeter-sized bubbles. These characteristics are their small size, which …

[HTML][HTML] A 3D scanning laser endoscope architecture utilizing a circular piezoelectric membrane

R Khayatzadeh, F Çivitci, O Ferhanoğlu - Optics Communications, 2017 - Elsevier
A piezo-scanning fiber endoscopic device architecture is proposed for 3D imaging or
ablation. The endoscopic device consists of a piezoelectric membrane that is placed …

[PDF][PDF] Control of piezorobots' trajectories for nanosatellite stabilization

J Janutėnaitė-Bogdanienė - 2019 - core.ac.uk
Rapid industrial advancement requires novel ideas, new scientific approaches and effective
technologies that would ensure quality and precision. Application of piezoelectric actuators …