Pseudoheterodyne near-field imaging at kHz repetition rates via quadrature-assisted discrete demodulation
Scattering-type scanning near-field optical microscopy enables the measurement of optical constants of a surface beyond the diffraction limit. Its compatibility with pulsed sources is hampered by the requirement of a high-repetition rate imposed by lock-in detection. We describe a sampling method, c...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Institute of Physics Inc.
2022
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| Subjects: | |
| Online Access: | View Fulltext in Publisher |