Massachusetts Institute of Technology

United States of America As Represented by the Secretary of the Air Force

Timothy Stephens

Albert M Young

Mark Alexander Hollis

James Douglas Harper

Todd H Rider

Trina Rae Vian

Eric D Schwoebel

Martha Susan Petrovick

Richard Hart Mathews

Bernadette Johnson

Frances E Nargi

Ann Rundell

Linda Marie Mendenhall

Thomas Sebastian

Eric David Schwoebel

Frances Ellen Nargi

Todd Harrison Rider

A discrete bypass particle concentrator can significantly reduce surface fouling and manufacturing cost by including bypass stages after each of concentration stages.

Discrete bypass particle concentrator

The invention relates to optoelectronic systems for detecting one or more target particles. The system includes a reaction chamber, a specimen collector, an optical detector, and a reservoir containing cells, each of the cells having receptors which are present on the surface of each cell and are specific for the target particle to be detected, where binding of the target particle to the receptors directly or indirectly activates a reporter molecule, thereby producing a measurable optical signal.

Optoelectronic detection system

The aerodynamic window of the present invention provides a barrier between two different environments of a high energy laser device. The first environment is a transverse gas flow across the laser beam and the third environment is an axial flow beam path. The window having a second environment therein changes both the gas temperature and the gas pressure along the laser beam to minimize optical path differences between the first and third environments. The second environment has a thermal transition section and an injection section. In the thermal transition section before the injection section, a gas manifold provides a varying gas flow field. The thermal transition section changes the gas temperature while maintaining its pressure and velocity constant. A transverse flow is exhausted in a location opposite to the gas manifold. The axial flow enters into the injection section. Gas ejectors in the injection section mix the axial flowing gas and increase the gas pressure and velocity.

Axial-flow aerodynamic window for high energy laser

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Lexington, MA, United States of America

Timothy Stephens