USA As Represented by Secretary of the Navy

William J Scharpf

Richard I Billmers

Vincent Michael Contarino

Alan Edward Laux

David M Allocca

Martin F Squicciarini

David Huber

Kevin Owens

Jake Griffiths

Lena Franklin

A method of extracting high-frequency temporal information from images or video recorded with a rolling shutter-based imager includes the steps of acquiring image data using the rolling shutter-based imager; and extracting time-domain frequency information from the image data based on two or more lines of pixels in the image data.

Exploiting camera rolling shutter to detect high frequency signals

A magneto-optical rotation (MOR) spectrometer is disclosed having a laser as a light source and providing a high intensity input light source that yields improvements in the detection limits and in the dynamic operating ranges of the MOR spectrometer.

Laser magneto-optic rotation spectrometer (LMORS)

An actively pumped optical filter includes a vapor cell having a population of electrons with the plurality of energy levels which receives light and transmits light according to a pumping mechanism. A magnetic source is provided for applying a magnetic field to the vapor cell. A first pulsed dye laser applies a first beam of light to the vapor cell causing transitions of the electrons from a first energy level to a second energy level. A second pulsed dye laser is used for measuring the transmission through the vapor cell. A third laser applies a beam of light to the first laser and a beam of light to the second laser. The third laser may be an Nd:YAG laser. Polarizers are disposed before and after the vapor cell and a delay path is provided for delaying the second beam of light before the second beam of light is applied to the laser cell. The delay path is tuned by adjusting the length.

Actively pumped faraday optical filter

Growing community of inventors

Bensalem, PA, United States of America

William J Scharpf