NU 2005-015

Inventor

Hooman Mohseni*

Short Description

A novel avalanche-free single photon detector in the short infrared range that is suitable for ultra-sensitive high-density infrared imaging arrays

Abstract

Northwestern researchers have developed a novel avalanche-free single photon detector in the short infrared range that is suitable for ultra-sensitive high-density infrared imaging arrays.  It supercedes existing single photon detectors and avalanche photodetectors on multiple levels.  The pixel element is low voltage without a need for a large power source.  It operates at near room temperatures and has almost negligible noise. Its ability to perform fast imaging using starlight-sensitive infrared photon counting arrays promotes a decisive advantage in many infrared imaging applications, particularly those related to homeland security and night time tactical maneuvers. In addition, this technology would improve the sensitivity of biomedical imaging if applied to high quality infrared imaging cameras.

Applications

• Extreme darkness night vision surveillance and target acquisition systems
• Infrared and thermal imaging
• Battlefield/night time tactical maneuvers
• Weaponry guidance systems
• Thermal insulation leak detection
• Biomedical imaging

Advantages

• Compatible with existing readout integrated circuit technology
• High spatial and temporal resolution
• Recharging - no signal gating needed while active
• Increased bandwidth, approaching 1THz
• Minimal cooling of sensing element required
• Low power consumption
• Highly secure due to the absence of photon re-emission

IP Status

Issued U.S. Patent 7,745,816