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physics.optics2023★ 5 cited
Experimental realization of supergrowing fields
Sethuraj K. R., Tathagata Karmakar, S. A. Wadood +2
Supergrowth refers to the local amplitude growth rate of a signal being faster than its fastest Fourier mode. In contrast, superoscillation pertains to the variation of the phase.…
physics.optics2023★ 9 cited
Supergrowth and sub-wavelength object imaging
Tathagata Karmakar, Abhishek Chakraborty, A. Nick Vamivakas +1
We further develop the concept of supergrowth [Jordan, Quantum Stud.: Math. Found. , 285-292 (2020)], a phenomenon complementary to superoscillation, defined as the loc…