Browsing by Keywords "Microfabrication"
Now showing items 1-12 of 12
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Batch-compatible micromanufacturing of a CMUT array for optoacoustic imaging of tissue-like phantoms
(Bilkent University, 2021-08)Photoacoustic imaging (PAI), also named optoacoustic imaging, is a technol-ogy for medical imaging that relies on contrast data due to optical stimulation. Capacitive micromachined ultrasound transducers (CMUTs) are ... -
Beam steering in a half-frequency driven airborne CMUT transmitter array
(IEEE Computer Society, 2019)An airborne Capacitive Micromachined Ultrasonic Transducer (CMUT) transmit array was designed using electromechanical modelling for unbiased airborne operation. The array elements are designed for maximum swing at 10V p-p ... -
Deep collapse mode capacitive micromachined ultrasonic transducers
(Bilkent University, 2010)Capacitive micromachined ultrasonic transducers (CMUTs) are suspended microelectromechanical membrane structures with a moving top electrode and a rigid substrate electrode. The membrane is actuated by electrical signals ... -
Design, fabrication and operation of a very high intensity CMUT transmit array for beam steering applications
(Bilkent University, 2020-12)Several studies have reported airborne ultrasound transmission systems focused on achieving beamforming. However, beam steering and beamforming for capacitive micromachined ultrasonic transducers (CMUTs) at high intensity ... -
Designing, fabrication and post- fabrication characterization of half-frequency driven 16 x 16 waterborne transmit CMUT array
(Bilkent University, 2021-02)Capacitive Micromachined Ultrasonic Transducers (CMUT) are micro-scaled electromechanical devices which are used to either transmit or receive pressure signals and applicable for various purposes such as ultrasonic sensor, ... -
Fourier transform plasmon resonance spectrometer using nanoslit-nanowire pair
(American Institute of Physics, 2019)In this paper, we present a nanoscale Fourier transform spectrometer using a plasmonic interferometer consisting of a tilt subwavelength slit-nanowire pair on a metallic surface fabricated by the focused ion beam ... -
Oil droplet manipulation on superomniphobic textured surfaces
(Bilkent University, 2020-07)Microfluidic systems are mostly composed of closed microchannels in which flow is generated by syringe or pressure pumps. The flow in these channels can be droplet-based however access to each droplet individually in ... -
Rapid fabrication of microfluidic PDMS devices from reusable PDMS molds using laser ablation
(Institute of Physics Publishing, 2016)The conventional fabrication methods for microfluidic devices require cleanroom processes that are costly and time-consuming. We present a novel, facile, and low-cost method for rapid fabrication of polydimethylsiloxane ... -
A simple approach for the fabrication of 3D microelectrodes for impedimetric sensing
(Institute of Physics Publishing, 2015)In this paper, we present a very simple method to fabricate three-dimensional (3D) microelectrodes integrated with microfluidic devices. We form the electrodes by etching a microwire placed across a microchannel. For precise ... -
Surface integrated membrane nanomechanical and microwave coplanar waveguide based biosensors
(Bilkent University, 2018-08)Nanoelectromechanical Systems, or NEMS, is the further miniaturized extension of novel devices of 40 years ago, Microelectromechanical Systems or MEMS in short. Nano scale devices first appeared at the dawn of 21st century ... -
Terahertz Bandpass Frequency Selective Surfaces on Glass Substrates Using a Wet Micromachining Process
(Springer New York LLC, 2017)This paper presents terahertz (THz) frequency selective surfaces (FSS) implemented on glass substrate using standard microfabrication techniques. These FSS structures are designed for frequencies around 0.8 THz. A fabrication ... -
Three dimensional microfabricated broadband patch and multifunction reconfigurable antennae for 60 GHz applications
(IEEE, 2015-04)In this paper we present two antenna designs capable of covering the IEEE 802.11ad (WiGig) frequency band (57-66 GHz and 59-66 GHz respectively). The work below reports the design, microfabrication and characterization of ...
