Akkaya
Onur C. Akkaya, Stanford, CA US
Patent application number | Description | Published |
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20130281325 | DIAMOND ELECTRODE NANOGAP TRANSDUCERS - Embodiments of the invention provide transducers capable of transducing redox active chemical signals into electrical signals. Transducers comprise two electrodes separated by a nanogap. At least one electrode is comprised of conducting diamond. Methods of fabricating nanogap transducers and arrays of nanogap transducers are provided. Arrays of individually addressable nanogap transducers can be disposed on integrated circuit chips and operably coupled to the integrated circuit chip. | 10-24-2013 |
Onur Can Akkaya, Stanford, CA US
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20100092125 | Optical structure on an optical fiber and method of fabrication - An optical structure on an optical fiber and a method of fabrication is provided. The optical structure includes an end of an optical fiber and a layer formed on the end of the optical fiber. The layer comprises one or more first portions having a first optical pathlength in a direction perpendicular to the layer and one or more second portions having a second optical pathlength in the direction perpendicular to the layer, the second optical pathlength different from the first optical pathlength. | 04-15-2010 |
20110268384 | OPTICAL-FIBER-COMPATIBLE ACOUSTIC SENSOR - An acoustic sensor includes a diaphragm having a reflective element. The sensor has an optical fiber positioned relative to the reflective element such that light emitted from the optical fiber is reflected by the reflective element. A first end of the optical fiber and the reflective element form an optical cavity therebetween. The acoustic sensor further includes a structural element mechanically coupled to the diaphragm and the optical fiber. The structural element includes a material having a coefficient of thermal expansion substantially similar to the coefficient of thermal expansion of the optical fiber. For example, the material can be silica. | 11-03-2011 |
20130022307 | OPTICAL SYSTEM HAVING A PHOTONIC CRYSTAL STRUCTURE AND METHOD OF FABRICATION - An optical structure includes an optical waveguide and at least one photonic crystal structure. The optical structure also includes a structural portion mechanically coupled to the optical waveguide and the at least one photonic crystal structure such that a region substantially bounded by the structural portion, the optical waveguide, and the at least one photonic crystal structure has a specified volume. | 01-24-2013 |
Onur Can Akkaya, Standford, CA US
Patent application number | Description | Published |
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20130340232 | METHOD OF FABRICATING AN OPTICAL-FIBER-COMPATIBLE SENSOR - A method for fabricating a sensor is provided, with the sensor including a reflective element and an optical fiber positioned relative to the reflective element such that light emitted from the optical fiber is reflected by the reflective element and propagates in an optical cavity between the optical fiber and the reflective element. The method includes positioning an element within the optical cavity. The element has a coefficient of thermal expansion and a thickness that compensate a refractive index change with temperature of a medium within the optical cavity. | 12-26-2013 |
Onur Can Akkaya, Palo Alto, CA US
Patent application number | Description | Published |
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20130292555 | APPARATUS AND METHODS UTILIZING OPTICAL SENSORS OPERATING IN THE REFLECTION MODE - Optical apparatus and methods utilizing sensors operating in the reflection mode are provided. The apparatus includes at least one optical bus. The at least one optical bus is configured to be optically coupled to at least one source of input optical signals, to at least one optical detector, and to a plurality of reflective sensing elements. The at least one optical bus transmits an input optical signal from the at least one source to the plurality of reflective sensing elements. At least one reflective sensing element of the plurality of reflective sensing elements receives a portion of the input optical signal and reflects at least a portion of the received portion. The at least one optical bus transmits the reflected portion to the at least one optical detector. | 11-07-2013 |