https://biocil.github.io/tr/author/onur-ferhanoglu/Recent content in Onur Ferhanoglu on Phi-XHugotr-TRMon, 19 Jun 2023 00:00:00 +0000https://biocil.github.io/tr/publication/2023_jmems_tekin/Sun, 01 Jan 2017 00:00:00 +0000https://biocil.github.io/tr/publication/2023_jmems_tekin/In this study, we investigate the effect of fused deposition modeling printing direction on the effective Young’s modulus value of cantilevers.https://biocil.github.io/tr/publication/us11231322/Sun, 01 Jan 2017 00:00:00 +0000https://biocil.github.io/tr/publication/us11231322/A prism spectrometer having higher resolution and wider spectral width through the use of a speckle generating diffuser.https://biocil.github.io/tr/publication/2020_jlt_cetindag/Sun, 01 Jan 2017 00:00:00 +0000https://biocil.github.io/tr/publication/2020_jlt_cetindag/We present an optical efficiency improved speckle spectrometer where a scattering metal wave-guide is utilized along with a conventional prism spectrometer.https://biocil.github.io/tr/publication/2019_omn_cetindag/Sun, 01 Jan 2017 00:00:00 +0000https://biocil.github.io/tr/publication/2019_omn_cetindag/We present an improved prism spectrometer with high wavelength range and spectral resolution.https://biocil.github.io/tr/publication/2018_ptl_cetindag/Sun, 01 Jan 2017 00:00:00 +0000https://biocil.github.io/tr/publication/2018_ptl_cetindag/With the proposed spectrometer, implemented using a CCD camera, we demonstrate up to 17-pm resolution at 855-nm central wavelength and 756.5-nm wavelength range revealing a dynamic range of ~44 500.https://biocil.github.io/tr/publication/2011_ol_ferhanoglu/Sun, 01 Jan 2017 00:00:00 +0000https://biocil.github.io/tr/publication/2011_ol_ferhanoglu/Findings show that diffraction grating readout principle is not limited to translating sensors but also can be used for sensors with tilt or other deflection modes.https://biocil.github.io/tr/publication/2009_sa_toy/Sun, 01 Jan 2017 00:00:00 +0000https://biocil.github.io/tr/publication/2009_sa_toy/Thermo-mechanical detector arrays in the 160 x 120 array format are designed, fabricated, and tested. Detectors are composed of SiNx and TiN as absorbing layer, Al to form bimaterial legs, and integrated diffraction grating interferometer underneath each detector.https://biocil.github.io/tr/publication/2009_spiedef_ferhanoglu/Sun, 01 Jan 2017 00:00:00 +0000https://biocil.github.io/tr/publication/2009_spiedef_ferhanoglu/Parylene was used as the structural material due to its high thermal isolation and mismatch properties. Calculations reveal that the NETD performance of a thermo-mechanical array using Parylene can be significantly better than SiNx based designs and offer a theoretical NETD value <10mK assuming an optical readout with a high dynamic range detector array.https://biocil.github.io/tr/publication/2008_prime_toy/Sun, 01 Jan 2017 00:00:00 +0000https://biocil.github.io/tr/publication/2008_prime_toy/A novel thermo-mechanical infrared (IR) imaging array with integrated diffraction gratings for optical readout was fabricated and tested.https://biocil.github.io/tr/publication/2007_ptl_ferhanoglu/Sun, 01 Jan 2017 00:00:00 +0000https://biocil.github.io/tr/publication/2007_ptl_ferhanoglu/A two-wavelength readout method is developed that maintains high sensitivity while increasing the detection range, which is demonstrated using a MEMS spectrometer with integrated diffraction grating.https://biocil.github.io/tr/publication/2007_leos_ferhanoglu/Sun, 01 Jan 2017 00:00:00 +0000https://biocil.github.io/tr/publication/2007_leos_ferhanoglu/An uncooled thermal detector array with low NETD is designed and fabricated using MEMS bimaterial structures. A diffraction grating is embedded on the pixel membrane for sensing sub-nm mechanical deflections.https://biocil.github.io/tr/publication/2007_omn_toy/Sun, 01 Jan 2017 00:00:00 +0000https://biocil.github.io/tr/publication/2007_omn_toy/A two-wavelength readout method is developed that maintains high sensitivity while increasing the detection range from 105 nm to 1.7 um assuming sensitivity is maintained at >50% of the maximum sensitivity