Massachusetts Institute of Technology

Advanced Functional Fabrics of America, Inc.

Flir Systems, Incorporated

Alexander Stolyarov

Yoel Fink

John Dimitris Joannopoulos

Lauren Cantley

Ofer Shapira

Thomas H Jeys

Fabien Sorin

William D Herzog

Brian G Saar

Shawn Michael Redmond

Ryan Sullenberger

David Crompton

Jason R Cox

Richard Paul Kingsborough

Mihai Ibanescu

Alan J Fenn

Tosha L Hays

Tairan Wang

Guillaume Lestoquoy

Aimee Rose

Michael Rein

Siva Yegnanarayanan

Jimmy Nguyen

Alexander Gumennik

Kristina McCarthy

Nicholas D Orf

Chia-Chun Chung

Shane M Tysk

Lalitha Parameswaran

Lei Wei

Kristen Mulherin

Chong Hou

Brent Richard Schell

Joshua Deisenhaus

Matthew Bernasconi

William Richard McDaniel, Ii

Michael Rickley

Ken Kuriki

Described is a flexible thermally-drawn receive phased array antenna and antenna system and a process for making the same. The phased array antenna system includes a plurality of antenna elements and one or more low noise amplifiers (LNAs) encapsulated in a fiber such as flexible polyetherimide (PEI) fiber material. A DC bias for the LNAs and other components is provided by one or more electrically conducting wires disposed in proximity to the antenna elements and also encapsulated in the fiber. In embodiments, the antenna elements are provided as dipole antenna elements and the phased array antenna is provided as a flexible thermally-drawn linear dipole receive phased array antenna operable at UHF frequencies.

Fiber based RF phased-array antennas

Methods of manufacturing multi-material fibers having one or more electrically-connectable devices disposed therein are described. In certain instances, the methods include the steps of: positioning the electrically-connectable device(s) within a corresponding pocket provided in a preform material; positioning a first electrical conductor longitudinally within a first conduit provided in the preform material; and drawing the multi-material fiber by causing the preform material to flow, such that the first electrical conductor extends within the multi-material fiber along a longitudinal axis thereof and makes an electrical contact with a first electrode located on each electrically-connectable device. A metallurgical bond may be formed between the first electrical conductor and the first electrode while drawing the multi-material fiber and/or, after drawing the multi-material fiber, the first electrical conductor may be located substantially along a neutral axis of the multi-material fiber.

Multi-material fibers and methods of manufacturing the same

Techniques are disclosed for a chemical sensor architecture based on a fabric-based spectrometer. An example apparatus implementing the techniques includes a portable spectrometer device including a first fabric layer and a second fabric layer coupled to the first fabric layer to form a pouch. The second fabric layer includes a fiber fabric spectrometer substrate comprising a fiber material including one or more electronic devices, wherein the pouch is configured to receive a colorimetric substrate and the fiber fabric spectrometer substrate is configured to measure reflectance of a colorimetric substrate disposed in the pouch.

Portable spectrometer for chemical sensing

An article is a selected one of a set of articles. Each article of the set includes a fabric and is associated with a unique identification code. The selected article has a pattern distributed over at least 10% of an exposed surface of the selected article. The pattern encodes the identification code associated with the selected article, wherein the pattern is configured to be read and decoded by a mobile computing device in a manner wherein the selected article is contextually recognizable. A two-dimensional plaid pattern may be used to carry the identification code, which can be decoded according to described methods.

Uniquely identifiable articles of fabric and social networks employing them

A device, and corresponding method, can include a pump light source configured to irradiate a target specimen. The device can also include a sensor configured to observe a probe speckle pattern based on light from a probe light source reflected from the target specimen. The device further may include a correlator configured to determine a material property of the target specimen by analyzing changes in images of the probe speckle pattern as a function of the irradiation with the pump light source. Advantages of the device and method can include much higher sensitivity than existing methods; the ability to use visible probe wavelengths for uncooled, low-cost visible detectors with high spatial resolution; and the ability to obtain target material properties without detecting infrared light.

Material property determination using photothermal speckle detection

There is provided a sensor fiber including an electrically insulating material having a fiber length. At least one transduction element is disposed along at least a portion of the fiber length and is arranged for exposure to an intake species. A photoconducting element is in optical communication with the transduction element. At least one pair of electrically conducting electrodes are in electrical connection with the photoconducting element. The pair of electrodes extend the fiber length.

Fiber sensor

A device, and corresponding method, can include a pump light source configured to be modulated at a pump modulation and to irradiate a target specimen. The device can also include a probe light source arranged to generate a speckle pattern from the target specimen, as well as a sensor configured to detect changes in at least one of position and intensity of one or more speckle lobes of the speckle pattern having correlation with the pump modulation. The device and method can be used for non-contact monitoring and remote sensing of surfaces, gases, liquids, particles, and other target materials by analyzing speckle pattern changes as a function of pump light irradiation. Advantages can include much higher sensitivity than existing methods; the ability to use visible probe wavelengths for uncooled, low-cost visible detectors with high spatial resolution; and the ability to obtain target material properties without detecting infrared light.

Devices and methods for sensing targets using photothermal speckle detection

The laser includes an optical fiber including a cavity containing a microfluidic gain medium bounded by a composite structure of alternating layers of high and low index materials forming an axially invariant, rotationally symmetric photonic bandgap cavity. The optical fiber also includes at least one microfluidic channel containing liquid crystal modulators in the fiber cladding extending in an axial direction and further includes a pair of electrodes flanking the microfluidic channel. An electrical potential across the pair of electrodes will rotate the liquid crystal molecules to rotate the linearly polarized state of light emitted from the cavity. An external linear polarizer is disposed around the fiber to modulate azimuthal laser intensity distribution.

Microfluidic radial fiber laser utilizing an external polarizer to modulate its azimuthal intensity distribution

In one aspect, the disclosure features an article, including a fiber waveguide extending along a waveguide axis, the fiber waveguide including a core extending along the waveguide axis and a confinement region surrounding the core. The confinement region is configured to guide radiation at a first wavelength, &#x3bb;, along the waveguide axis and is configured to transmit at least some of the radiation at a second wavelength, &#x3bb;, incident on the confinement region along a path, where &#x3bb;and &#x3bb;are different. The core includes a core material selected to interact with radiation at &#x3bb;to produce radiation at &#x3bb;.

Surface-emitting fiber laser

Growing community of inventors

Belmont, MA, United States of America

Alexander Stolyarov