| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1869804 | Physics Procedia | 2010 | 5 Pages |
Abstract
We constructed a dilution-refrigerator-based near-field scanning optical microscope (NSOM) which operates at temperatures down to 200 mK. Our NSOM enables us to investigate spatial properties of the electrons in semiconductor nanostructures with a subwavelength spatial resolution. We report on a result of the optical mapping of the boundary of a two-dimensional electron gas in a gated Hall-bar structure of a GaAs/AlGaAs modulation-doped single heterojuntion.
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