Massachusetts Institute of Technology

University of Central Florida Research Foundation Inc

Flir Systems, Incorporated

Formlabs, Inc.

Alexander Gumennik

John Dimitris Joannopoulos

Yoel Fink

Guillaume Lestoquoy

Benjamin Jean-Baptiste Grena

Ayman F Abouraddy

Fabien Sorin

Alexander Stolyarov

Aimee Rose

Chong Hou

Lei Wei

William Richard McDaniel, Ii

Amira Eltony

Brent Richard Schell

A fiber is provided that has been thermally drawn from a fiber preform, having a longitudinal-axis length and including at least one core that has a longitudinal core axis parallel to the longitudinal axis and internally disposed to at least one outer fiber cladding material layer along the fiber length. The fiber is fed through a localized heating site having a heating site temperature, T, that is above a melting temperature of the fiber core, with a feed speed, &#x3c5;, that melts a portion of the fiber core at the heating site, causing molten droplets to pinch off of fiber core material, one droplet at a time, with a time period of molten droplet formation set by the fiber feed speed, &#x3c5;. The fiber is fed through the localized heating site to move the molten droplets out of the heating site and solidify the molten droplets into solid in-fiber particles.

Dynamic in-fiber particle production with precise dimensional control

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

According to some aspects, an additive fabrication device for forming solid objects within a build region is provided, the device comprising a laser source, an aspheric lens configured to receive light emitted by the laser source and to produce a light beam having a circular cross section at at least one position inside the build region, and at least one mirror configured to be actuated to reflect the light beam toward a selected position within the build region.

Techniques of additive fabrication using an aspheric lens and related systems and methods

Herein is provided a fiber that includes a cladding material disposed along a longitudinal-axis fiber length and a plurality of discrete and disconnected high-stress domains that are disposed as a sequence along a longitudinal line parallel to the longitudinal fiber axis in at least a portion of the fiber length. Each high stress domain has an internal pressure of at least 0.1 GPa and comprises a material that is interior to and different than the fiber cladding material.

High-pressure in-fiber particle production with precise dimensional control

Growing community of inventors

Brookline, MA, United States of America

Alexander Gumennik