US Government As Represented by the Secretary of the Army

The Mitre Corporation

Paul D Kunz

Kevin C Cox

David H Meyer

Bonnie L Marlow

Joshua Cartwright Hill

Kelly Backes

Charlie Fancher

William Knox Holland

Kathryn Nicolich

Neel Malvania

Fredrik K Fatemi

A system for automatically locking a control laser in a Rydberg atomic sensor may comprise an atomic vapor cell, a probe laser configured to excite the atoms in the atomic vapor cell to an intermediate energy state, and a control laser configured to excite the one or more atoms in the atomic vapor cell from the intermediate energy state to a higher energy state. The light generated by the control laser may be dithered at a pre-determined frequency. The system further comprises a photodiode configured to convert light received from the vapor cell into an electrical signal, a lock-in amplifier configured to generate an error signal based on the electrical signal received from the photo diode and a received reference oscillation frequency, and a servo configured to receive the generated error signal from the lock-in amplifier and adjust a frequency of the control laser based on the received error signal.

Self-locked Rydberg atom electric field sensor

Apparatuses and methods are provided that are directed to detecting electric, magnetic, or electromagnetic fields by employing atoms excited to Rydberg states coupled to radio-frequency circuits that include waveguides.

Circuit-coupled Rydberg sensor and receiver using same

A conical mirror concentrator is disclosed which is configured for use as a laser-cooled cooled atom source. According to embodiments, the conical mirror concentrator may comprise a body; a reflective inner conical surface formed on the body tapering from a large diameter at a first side of body inward to a smaller dimeter in an interior space of the body, wherein the inner conical surface focuses light to an axis within the interior space of the body; a hole extending from the interior space of the body near a pinnacle of the inner conical surface to a second, opposite side of body; and a structure configured to mount the concentrator to an ultra-high vacuum chamber, such as a CF (or Conflat) flange or an anodicly bonded glass plate.

Conical mirror concentrator for a laser-cooled cold atom source

Growing community of inventors

Washington, DC, United States of America

Paul D Kunz