Mohammad Khoshsima

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In this paper we introduce Nanoscale Optofluidic Sensor Arrays (NOSAs), which are an optofluidic architecture for performing highly parallel, label free detection of biomolecular interactions in aqueous environments. The architecture is based on the use of arrays of 1D photonic crystal resonators which are evanescently coupled to a single bus waveguide.(More)
In this work, we demonstrate improved molecular detection sensitivity for silicon slab photonic crystal cavities by introducing multiple-hole defects (MHDs), which increase the surface area available for label-free detection without degrading the quality factor. Compared to photonic crystals with L3 defects, adding MHDs into photonic crystal cavities(More)
Silicon nitride (Si 3 N 4) ring resonators are critical for a variety of photonic devices. However the intrinsically high film stress of silicon nitride has limited both the optical confinement and quality factor (Q) of ring resonators. We show that stress in Si 3 N 4 films can be overcome by introducing mechanical trenches for isolating photonic devices(More)
which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Dear Editor, Traumatic brain injury (TBI) is a major cause of morbidity and mortality after myocardial infarction in the world with many complications in somatic, psychosocial and disabilities (1). Each year in the United States,(More)
We demonstrate planar Si 3 N 4 ring resonators with ultra-high quality factors (Q) of 19 million, 28 million, and 7 million at 1060 nm, 1310 nm, and 1550 nm, respectively. By integrating the ultra-low-loss Si 3 N 4 ring resonators with laterally offset planar waveguide directional couplers, optical add-drop and notch filters are demonstrated to have(More)
This Bibliometric study was carried out to investigate the trends in stem cell research in Iran from 1995 to 2010. Original research and review articles were considered and publications were identified with the keyword "stem cell" and an affiliation to an Iranian institution. Data were obtained from the Institute for Scientific Information (ISI) Web of(More)
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