Posted On: 04/15/2015 4:13:19 PM
Post# of 22465
Graphene pushes the speed limit of light-to-electricity conversion
The new device that the researchers developed is capable of converting light into electricity in less than 50 femtoseconds ( a twentieth of a millionth of a millionth of a second ). To do this, the researchers used a combination of ultrafast pulse-shaped laser excitation and highly sensitive electrical readout. As Klaas-Jan Tielrooij comments, "the experiment uniquely combined the ultrafast pulse shaping expertise obtained from single molecule ultrafast photonics with the expertise in graphene electronics. Facilitated by graphene's nonlinear photo-thermoelectric response, these elements enabled the observation of femtosecond photodetection response times."
http://phys.org/news/2015-04-graphene-limit-l...n.html#jCp
The new device that the researchers developed is capable of converting light into electricity in less than 50 femtoseconds ( a twentieth of a millionth of a millionth of a second ). To do this, the researchers used a combination of ultrafast pulse-shaped laser excitation and highly sensitive electrical readout. As Klaas-Jan Tielrooij comments, "the experiment uniquely combined the ultrafast pulse shaping expertise obtained from single molecule ultrafast photonics with the expertise in graphene electronics. Facilitated by graphene's nonlinear photo-thermoelectric response, these elements enabled the observation of femtosecond photodetection response times."
http://phys.org/news/2015-04-graphene-limit-l...n.html#jCp
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