Chaitanya K Rastogi

US Patent:

20140354999, Dec 4, 2014

Filed:

Apr 15, 2014

Appl. No.:

14/253250

Inventors:

- New York NY, US
Chaitanya Rastogi - New York NY, US

Assignee:

The Trustees of Columbia University In The City of New York - New York NY

International Classification:

G01J 3/45
G01J 3/28

US Classification:

356456

Abstract:

Techniques for hyperspectral imaging, including a device for hyperspectral imaging including at least one tunable interferometer including a thin layer of material disposed between two or more broadband mirrors. Electrodes placed on either side of the tunable interferometer can be coupled to a voltage control circuit, and upon application of a voltage across the tunable interferometer, the distance between the mirrors can be modulated by physically altering the dimensions of the thin layer of material, which can uniformly load the broadband mirrors. Physically altering the dimensions of the thin layer of material can include one or more of deformation of a soft material, piezostrictrive actuation of a piezostrictrive material, or electrostrictive actuation of an electrostrictive material.

US Patent:

20140100472, Apr 10, 2014

Filed:

Dec 12, 2013

Appl. No.:

14/104931

Inventors:

- New York NY, US
Aurel A. Lazar - New York NY, US
Chaitanya Rastogi - Paramus NJ, US
Yevgeniy B. Slutskiy - Brooklyn NY, US

Assignee:

The Trustees of Columbia University in the City of New York - New York NY

International Classification:

A61B 5/04
A61B 5/00

US Classification:

600547

Abstract:

Systems for untethered sensing and recording of activity of one or more electrically excitable cells in a target region includes at least one untethered probe. Each untethered probe includes at least one signal detector, configured to electrically couple to the target region, measure the activity of the one or more electrically excitable cells, and produce an electrical signal in response to the activity of the one or more electrically excitable cells, and at least one light source, electrically coupled to the at least one signal detector, to receive the electrical signal and emit a light signal representing the activity of the one or more electrically excitable cells. Methods for untethered sensing and recording of activity of one or more electrically excitable cells in a target region are also provided.