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Fig. 4 | PhotoniX

Fig. 4

From: Nonvolatile reconfigurable terahertz wave modulator

Fig. 4

Measured repeatability and multi-level modulation of metalens. a Experimentally measured normalized intensity distribution for 4 write-erase cycles. b Experimentally measured normalized intensity distribution of the horizontal cross-section on the focal plane at varying laser power from 60 to 120 mJ/cm2 at 10 mJ/cm2 step

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