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Understanding how light waves oscillate in time as they interact with materials is essential to understanding light-driven energy transfer in materials, such as solar cells or plants. Due to the fantastically high speeds at which light waves oscillate, however, scientists have yet to develop a compact device with enough time resolution to directly capture them.
Now, a team led by MIT researchers has demonstrated chip-scale devices that can directly trace the weak electric field of light waves as they change in time. Their device, which incorporates a microchip that uses short laser pulses and nanoscale antennas, is easy to use, requiring no special environment for operation, minimal laser parameters, and conventional laboratory electronics.
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Posted April 30, 2021
MIT researchers develop compact on-chip device for detecting electric-field waveforms with attosecond time resolution.
Understanding how light waves oscillate in time as they interact with materials is essential to understanding light-driven energy transfer in materials, such as solar cells or plants. Due to the fantastically high speeds at which light waves oscillate, however, scientists have yet to develop a compact device with enough time resolution to directly capture them.
Now, a team led by MIT researchers has demonstrated chip-scale devices that can directly trace the weak electric field of light waves as they change in time. Their device, which incorporates a microchip that uses short laser pulses and nanoscale antennas, is easy to use, requiring no special environment for operation, minimal laser parameters, and conventional laboratory electronics.
Managing Director, Development Policy and Partnerships, World Bank
Mari Pangestu is the World Bank Managing Director of Development Policy and Partnerships. In this role, which she assumed on March 1, 2020, Ms. Pangestu oversees the research and data group of the World Bank (DEC) and the External and Corporate Relations function. From July 1, 2020, she will also provide leadership to and oversee the work program of the World Bank’s Global Practice Groups. Ms. Pangestu joins the Bank with exceptional policy and management expertise, having served as Indonesia’s Minister of Trade from 2004 to 2011 and as Minister of Tourism and Creative Economy from 2011 to 2014. She obtained her bachelor’s and master’s degree in economics from the Australian National University, and her doctorate in economics from the University of California at Davis.