Browsing by Author "Bozkurt, Ayhan"
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Characterization and imaging with lamb wave lens at gigahertz frequencies
Bozkurt, Ayhan; Yaralıoğlu, Göksenin; Atalar, Abdullah; Köymen, Hayrettin; Kramer, K. (IEEE, 1994-10-11)Lamb wave lenses with conical refracting surfaces are fabricated for use at 400 MHz and 1 GHz. The conical surfaces are ground and polished with mechanical means and they are sufficiently smooth for the frequencies of ... -
En acil sorun: korsan kitap
Bozkurt, Ayhan (1998) -
Kaçışsız bir yaşam oyunu şiirleri
Bozkurt, Ayhan (1998) -
Lens geometries for quantitative acoustic microscopy
Atalar, Abdullah; Köymen, Hayrettin; Bozkurt, Ayhan; Yaralıoğlu, Göksenin (Springer, 1995)The purpose of the first Lemons-Quate acoustic microscope(1) was to image the surfaces of materials or biological cells with a high resolution. Unfortunately, competition with the optical microscope was only partially ... -
Modeling and characterization of capacitive micromachined ultrasonic transducers
Bozkurt, Ayhan (Bilkent University, 2000)The Capacitive Micromachined Ultrasonic Transducer (cMUT) is a device used for the generation and detection of ultrasonic sound waves. The device is constructed on a silicon substrate using a microfabrication process. ... -
A new directional acoustic lens: V-groove lens
Bozkurt, Ayhan; Yaralıoğlu, G. Göksenin; Atalar, Abdullah; Köymen, Hayrettin (IEEE, 1993)A new directional acoustic lens is introduced. The geometry is very similar to the line-focus lens except the lens cavity, which is shaped as a groove with flat-bottom V cross section. The slanted planar edges of the groove ... -
A synthetic aperture imaging system using surface wave modes
Bozkurt, Ayhan; Arıkan, Orhan; Atalar, Abdullah (IEEE, 1995)A synthetic aperture acoustic imaging system with a novel inversion algorithm is described. Data is obtained by using a transducer insonifying the sample surface at a critical angle which is excited by a short electrical ... -
The V-Groove lens
Bozkurt, Ayhan (Bilkent University, 1994)Primarily designed for imaging purposes, the acoustic microscope finds application in the qualitative evaluation of materials, too. The lens response as a function of defocus, which is known as the V{z) curve, is formed ... -
Yaşamın kendisi polisiye
Bozkurt, Ayhan (1996)