2018-03-16, 19:05
A milestone in petahertz electronics
In a semiconductor, electrons can be excited by absorbing laser light. Advances during the past decade enabled measuring this fundamental physical mechanism on timescales below a femtosecond. Now physicists have resolved the response of electrons in gallium arsenide at the attosecond timescale, and gained unexpected insights for future ultrafast opto-electronic devices with operation frequencies in the petahertz regime.
https://www.sciencedaily.com/releases/20...141536.htm
In a semiconductor, electrons can be excited by absorbing laser light. Advances during the past decade enabled measuring this fundamental physical mechanism on timescales below a femtosecond. Now physicists have resolved the response of electrons in gallium arsenide at the attosecond timescale, and gained unexpected insights for future ultrafast opto-electronic devices with operation frequencies in the petahertz regime.
https://www.sciencedaily.com/releases/20...141536.htm