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By preventing aggregation of polymethine molecules at high number density, we have developed organic materials with large third-order nonlinearities and low nonlinear absorption in the near-infrared thereby enabling demonstration of an all-optical signal processing application.
Organic light-emitting diodes (OLEDs) continue to generate a lot of interest due to their role in flexible displays and in solid-state lighting. While continuous improvements have been achieved in performance, there is still a continuous need for new materials and device architectures that will comply with the future needs of large-area displays with increasing resolution, and with the lower cost...
Dispersion of the third-order nonlinear optical response can be predicted using a perturbative few-state model approach with knowledge of the linear and two-photon absorption spectra. This approach has been applied toward polymethines and squaraines.
We demonstrate all-optical switching of a silicon ring-resonator using two photon absorption of engineered organic materials. We show hitless switching of 7dB change in extinction with power dissipation of 400 fJ/op.
A molecular design strategy that involves favorable control of one- and two-photon absorption resonances to produce exceptional nonlinear optical figures-of-merit for all-optical switching has been realized in a series of cyanines dyes.
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