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- W2012124093 abstract "All-optical switching has been theoretically analyzed in LOV2 phototropin, the blue light plant photoreceptor based on nonlinear intensity-induced excited-state absorption. The transmission of a cw probe laser beam at 660 nm through LOV2 protein can be controlled by a cw or pulsed pump laser beam at 442 nm, respectively. This modulation is sensitive to the small-signal absorption coefficient, absorption cross-section of the excited L-state at pump beam wavelength and sample thickness. It is shown that the unique spectral and kinetic properties of wild-type LOV2 and LOV2-C39A mutant, result in the probe beam getting completely switched off (100% modulation), by the pump laser beam of intensity 50 kW/cm<sup>2</sup> and 1 kW/cm<sup>2</sup>, respectively. The switching response in LOV2-WT is faster (~μs) than in LOV2-C39A mutant (~ms). The results have been used to design an optically-addressed spatial light modulator and all-optical NOT, and the universal NAND and NOR logic gates. The results show the applicability of this novel plant photoreceptor protein for photonic applications." @default.
- W2012124093 created "2016-06-24" @default.
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- W2012124093 date "2007-09-13" @default.
- W2012124093 modified "2023-09-27" @default.
- W2012124093 title "Design of an all-optical spatial light modulator and logic gates with phototropin" @default.
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- W2012124093 doi "https://doi.org/10.1117/12.734022" @default.
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