Free-space transient magneto-optic sampling
- 15 September 1997
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 71 (11) , 1452-1454
- https://doi.org/10.1063/1.119934
Abstract
We demonstrate a free-space magneto-optic sampling system to measure the transient magnetic component of a freely propagating terahertz beam. Preliminary results using two magneto-optic sensors are presented. A detection sensitivity of 10 −7 T of the picosecond magnetic field in a standard pump/probe configuration is obtained. In the current orthogonal geometry, a 13 ps risetime of the free-space magneto-optic signal is measured. A temporal resolution limited only by the material spin relaxation time in a velocity-matched geometry is anticipated.Keywords
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