infrared
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Physics
Building a better infrared sensor: New photodiode design improves responsiveness
New, more sensitive infrared sensors can benefit a variety of technologies. Credit: Aalto University/Xiaolong Liu Infrared detection is important in a wide range of technologies, from remote controls to autofocus systems to self-driving cars and virtual reality headsets. This means there are significant benefits to be gained by improving the efficiency of infrared sensors such as photodiodes. Researchers at Aalto…
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Physics
From starlight to visibility: researchers develop shortwave infrared technology that enables detection of starlight
Benchmarking HGFETs, InGaAs diodes, and other thin film photodetectors. Credit: Peking University Professor Zhang Zhiyong’s team at Peking University has developed a heterojunction-gate field-effect transistor (HGFET) that achieves high sensitivity in shortwave infrared detection, recording a specific detection power of over 1014 Jones at 1300nm, and detecting starlight. became possible. Their work was recently published in the journal Advanced Materials…
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Physics
Infrared quantum ghost imaging illuminates living plants but doesn’t disturb them
Experimental setup and photon pair correlation. Credit: Optica (2024). DOI: 10.1364/OPTICA.527982 The study, published in the journal Optica, demonstrates live plant imaging of several representative plant samples, including the biofuel crop sorghum. Using a new detector, researchers obtained clear images of living sorghum plants in light much dimmer than starlight. This advancement enables imaging of delicate and light-sensitive samples such…
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Nanotechnology
Nanopatterned graphene enables infrared ‘color’ detection and imaging
Professor Debashis Chanda of the UCF Center for Nanoscience and Technology sits near his infrared camera image in his lab. Chanda and a research group of UCF students have developed a new long-wave infrared detection technique. (Photo courtesy of Debashi Chanda). Credit: Debashis Chanda Debashis Chanda, a University of Central Florida (UCF) researcher and professor at the UCF Center for…
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