Rectangular-shaped sub-wavelength terahertz beam profiling via an all-optical knife-edge technique
An all-optical, sub-wavelength terahertz characterization technique based on an ultrathin- knife-edge is demonstrated employing ultraviolet-pulse to project the blade image on a ZnTe crystal, where the free carriers excited on a blade-shaped area act as field-shield.
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| Format: | Article |
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Optical Society of American (OSA)
2014
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