New Breakthroughs in Short-Wavelength Infrared Imaging
Location:356 Fitzpatrick Hall
Short-wave infrared (SWIR) is an interesting region of the electromagnetic spectrum, as it is highly suitable for imaging through biological tissue and the atmosphere, and yet immune from the background thermal photon noise. These properties have led to a rapidly growing interest in the SWIR imaging for exciting new scientific, medical, defense, and consumer applications. In this seminar, I will present our new findings for ultra-sensitive and ultra-fast SWIR cameras.I will present a SWIR imager that is based on the detection mechanism in the Rod cells in the eye. We are making a very fast, and yet sensitive camera based on this new technology for the direct imaging of Earth-like exoplanets for the first time. This same detector has recently been used in a commercial medical optical tomography system, and achieved ~1000 times higher sensitivity at very low light conditions. I will also present a new approach to add ultra-fast timing to the SWIR imaging. Using this approach, we could achieve a timing accuracy of about 30 pico-seconds across the images, which allows us to separate two objects that are only a fraction of centimeter apart from the difference the time of arrival of the light rays.
Dr. Hooman Mohseni
Hooman Mohseni is a professor of Electrical Engineering and Computer Sciences at Northwestern University. He is the recipient of several research and teaching award including NSF CAREER Award, DARPA Young Faculty Award and Northwestern Faculty Honor Roll. Mohseni serves at the editorial boards of IEEE Photonics, IEEE Selected Topics in Quantum Electronics, Optics Letter, and Frontiers in Material. He has published over 120 peer-reviewed articles in major journals including Nature, Nano Letters, and ACS Nano. He holds 17 issued US and International patents. He is a Fellow of SPIE and OSA.