General Electric Company

Ge Homeland Protection, Inc.

Morpho Detection, Inc.

Anis Zribi

Glenn Scott Claydon

Shankar Chandrasekaran

Stacey Joy Kennerly

Shivappa Ningappa Goravar

Christopher James Kapusta

Wei-Cheng Tian

Long Que

Laura Jean Meyer

Ayan Banerjee

Ertugrul Berkcan

David Cecil Hays

Sandip Maity

Min-Yi Shih

Marko Klaus Baller

Peter Joseph Codella

Rui Chen

Guiju Song

Ajit Achuthan

Debbie Gahaton Jones

Radislav Alexandrovich Potyrailo

Kevin George Harding

James Anthony Ruud

Richard J Saia

Charles Erklin Seeley

Hua Xia

Christopher Fred Keimel

Juan Antonio Sabate

Renato Guida

Peter Micah Sandvik

Vinayak Tilak

Anthony Yu-Chung Ku

Sergio Paulo Martins Loureiro

Loucas Tsakalakos

David Joseph Najewicz

Victor Donald Samper

Steven Alfred Tysoe

Aaron Jay Knobloch

Kenneth Roger Conway

Todd Ryan Tolliver

Kuna Venkat Satya Rama Kishore

Alexey V Vert

Jianming Zheng

Sunil Srinivasa Murthy

Xiaoyong Liu

Azar Alizadeh

Kuna Kishore

Suryaprakash Ganti

Yuan-Hsiang Lee

Ganesh Chandan Gangadharan

Sheila Tandon

Dirk Lange

Zhiyong Wang

Guanghua (George) Wu

Gerald Schultz

Ertugal Berkcan

Willam Scott Sutherland

Marcin Alexy

Ayan Banerjec

Shankar (nmn) Chandrasekaran

A micro-electromechanical system (MEMS) based current & magnetic field sensor includes a MEMS-based magnetic field sensing component having a capacitive magneto-MEMS component, a compensator and an output component for sensing magnetic fields and for providing, in response thereto, an indication of the current present in a respective conductor to be measured. In one embodiment, first and second mechanical sense components are electrically conductive and operate to sense a change in a capacitance between the mechanical sense components in response to a mechanical indicator from a magnetic-to-mechanical converter.

Micro-electromechanical system (MEMS) based current and magnetic field sensor having capacitive sense components

According to one embodiment, a micro-electrical mechanical system apparatus includes (i) a comb drive actuator having at least one irregularly shaped finger and (ii) a movable Fabry-Perot filter cavity mirror coupled to the comb drive actuator. According to some embodiments, a relationship between a voltage applied to the comb drive actuator and an amount of displacement associated with the movable mirror is substantially linear.

Irregularly shaped actuator fingers for a micro-electromechanical system fabry-perot filter

A system and method for managing optical power for controlling thermal alteration of a sample undergoing spectroscopic analysis is provided. The system includes a moveable laser beam generator for irradiating the sample and a beam shaping device for moving and shaping the laser beam to prevent thermal overload or build up in the sample. The moveable laser beam generator includes at least one beam shaping device selected from the group consisting of at least one optical lens, at least one optical diffractor, at least one optical path difference modulator, at least one moveable mirror, at least one Micro-Electro-Mechanical Systems (MEMS) integrated circuit (IC), and/or a liquid droplet. The system also includes an at least two degree of freedom (2 DOF) moveable substrate platform and a controller for controlling the laser beam generator and the substrate platform, and for analyzing light reflected from the sample.

System and method for optical power management

According to one embodiment, a first capacitive element may be provided and associated with a surface where a fouling layer is to be detected. A second capacitive element may also be provided, and a capacitance between the first and second capacitive elements may be used to detect formation of the fouling layer. According to another embodiment, a thermal device is provided proximate to a surface where a fouling layer is to be detected. A detector (e.g., a thermometer or vibration detector) may detect a condition associated with the surface, and formation of the fouling layer may be determined based at least in part on the condition.

Early fouling detection

A method for determining analyte concentration levels is provided. The method includes acquiring radiation scattered off or transmitted by a target, analyzing at least a first portion of the radiation via a first technique to generate a first measurement of analyte concentration levels, and analyzing at least a second portion of the radiation via a second technique to generate a second measurement of analyte concentration levels. The method further determines analyte concentration levels based on at least one of the first measurement or the second measurement. In addition, a system for implementing the method and a probe for measuring and monitoring the analyte concentration levels is provided.

System and method for non-invasive glucose monitoring

Embodiments of the invention include a system for sensing homonuclear diatomic molecules, such as, for example, nitrogen. Other embodiments include a method for sensing homonuclear diatomic molecules. The system may include a light source, a hollow-core wave-guiding device that exhibits a low attenuation at predetermined operating optical frequencies and is in optical communication with the light source, a gas introduction system for introducing a gaseous medium between the light source and the hollow-core wave-guiding device, and a detector in optical communication with the hollow-core wave-guiding device.

Hollow-core waveguide-based raman systems and methods

A method of Raman detection for a portable, integrated spectrometer instrument includes directing Raman scattered photons by a sample to an avalanche photodiode (APD), the APD configured to generate an output signal responsive to the intensity of the Raman scattered photons incident thereon. The output signal of the APD is amplified and passed through a discriminator so as to reject at least one or more of amplifier noise and dark noise. A number of discrete output pulses within a set operational range of the discriminator is counted so as to determine a number of photons detected by the APD.

Method and apparatus for improved signal to noise ratio in Raman signal detection for MEMS based spectrometers

According to one embodiment, a micro-electrical mechanical system apparatus includes first and second mirrors that define a cavity. Moreover, a photonic band-gap structure coats a surface of at least one of the first or second mirrors to improve reflectivity. Another embodiment includes a third mirror, wherein the second and third mirrors form a second cavity. The spaces between the mirrors might comprise, for example, a pair of Fabry-Perot filter cavities for a spectrometer.

Micro-electromechanical system Fabry-Perot filter mirrors

An optofluidic device is provided. The device includes a cladding region having a first refractive index, and a channel defined by the cladding region such that the cladding region forms an inner surface or an interface of the channel. The channel is configured to house one or more of a liquid, a solid, a gas, a colloidal, or a suspension sample, wherein the sample has a second refractive index, where the channel is configured to guide radiation, and where the first refractive index is lower than the second refractive index.

Optofluidic devices and methods of using the same

According to one embodiment, a micro-electrical mechanical system apparatus includes a bi-stable actuator and at least one movable Fabry-Perot filter cavity mirror coupled to the bi-stable actuator. The bi-stable actuator may be associated with a first latched position and a second latched position and may comprise, for example, a thermal device, an electrostatic device (e.g., a parallel plate or comb drive), or a magnetic device. According to some embodiments, a relationship between a voltage applied to an actuator of a Fabry-Perot filter and an amount of displacement associated with a movable mirror is substantially linear.

Actuator for micro-electromechanical system fabry-perot filter

Gallium oxide films for sensing gas comprise GaOand have a porosity of at least about 30%. Such films can be formed by coating a substrate with a solution comprising: a gallium salt and a porogen comprising an organic compound comprising a hydrophilic chain and a hydrophobic chain; and heating the substrate to a temperature in the range from about 400&#xb0; C. to about 600&#xb0; C. while exposing the substrate to an oxygen-containing source to convert the gallium salt to a gallium oxide.

Porous gallium oxide films and methods for making and patterning the same

A micro-electromechanical system current and magnetic field sensor is presented. The micro-electromechanical system current and magnetic field sensor is configured to sense a magnetic field produced by a current carrying conductor. The sensor includes a structural component comprising a substrate and a compliant layer, a magnetic-to-mechanical converter coupled to the structural component to provide a mechanical indication of the magnetic field. The sensor further includes a strain responsive component coupled to the structural component to sense the mechanical indication and to provide an indication of the current in the current carrying conductor in response thereto.

Micro-electromechanical system (MEMS) based current and magnetic field sensor having improved sensitivities

An integrated spectrometer instrument, including an optical source formed on a chip, the optical source configured to generate an incident optical beam upon a sample to be measured. Collection optics formed on the chip are configured to receive a scattered optical beam from the sample, and filtering optics formed on the chip are configured to remove elastically scattered light from the scattered optical beam at a wavelength corresponding to the optical source. A tunable filter formed on the chip is configured to pass selected wavelengths of the scattered optical beam, and a photo detector device formed on the chip is configured to generate an output signal corresponding to the intensity of photons passed through the tunable filter.

Compact, hand-held raman spectrometer microsystem on a chip

A micro-electromechanical system (MEMS) current sensor is described as including a first conductor, a magnetic field shaping component for shaping a magnetic field produced by a current in the first conductor, and a MEMS-based magnetic field sensing component including a magneto-MEMS component for sensing the shaped magnetic field and, in response thereto, providing an indication of the current in the first conductor. A method for sensing a current using MEMS is also described as including shaping a magnetic field produced with a current in a first conductor, sensing the shaped magnetic field with a MEMS-based magnetic field sensing component having a magneto-MEMS component magnetic field sensing circuit, and providing an indication of the current in the first conductor.

MEMS based current sensor using magnetic-to-mechanical conversion and reference components

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Rexford, NY, United States of America

Anis Zribi