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.
In particular, 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 it the time of arrival of the light rays.
Hooman Mohseni, "New breakthroughs in short-wavelength infrared imaging (Conference Presentation)," Proc. SPIE 10540, Quantum Sensing and Nano Electronics and Photonics XV, 105400H (Presented at SPIE OPTO: January 29, 2018; Published: 14 March 2018); https://doi.org/10.1117/12.2297483.5751529758001.
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