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Article Dans Une Revue Applied Physics Letters Année : 2011

Low temperature near-field scanning optical microscopy on infrared and terahertz photonic-crystal quantum cascade lasers

Résumé

We report the development of a scattering-type near-field scanning optical microscope sNSOM which operates at temperatures down to 100 K with a scanning range of up to 400 microns. We have used this sNSOM to map the electromagnetic near-field on mid-IR and terahertz THz surface emitting quantum cascade lasers with photonic-crystal resonators. Mid-IR devices operate at lambda =7.5 microns ( 40 THz) while THz devices operate at lambda =110 microns( 2.7 THz ). The near-field images--in agreement with numerical calculations--demonstrate an instrument resolution of 100's nm.
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Dates et versions

hal-00706940 , version 1 (11-06-2012)

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  • HAL Id : hal-00706940 , version 1

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Ioana Cristina Moldovan Doyen, Gangy Xu, Léo Greusard, Grégoire Sevin, Elodie Strupiechonski, et al.. Low temperature near-field scanning optical microscopy on infrared and terahertz photonic-crystal quantum cascade lasers. Applied Physics Letters, 2011, 98, pp.231112-1. ⟨hal-00706940⟩
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