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Two-photon photovoltaic effect : ウィキペディア英語版 | Two-photon photovoltaic effect Two-photon photovoltaic effect is an energy harvesting technique based on two-photon absorption. The effect occurs when two photons are absorbed simultaneously in a semiconductor material and give rise to an electron-hole pair. The photon-generated electron and hole are then collected for electrical power generation using a p-n junction diode. The two-photon photovoltaic effect can be considered as the nonlinear equivalent of the conventional photovoltaic effect commonly used in p-n junction solar cells. The effect was first discovered in silicon 〔(), S. Fathpour, K. Tsia and B. Jalali, "Two-Photon Photovoltaic Effect in Silicon," IEEE Journal of Quantum Electronics, vol. 43, p. 1211, 2007.〕 and later observed in gallium arsenide 〔(), J. Ma, J. Chiles, Y. D. Sharma, S. Krishna, and S. Fathpour, "Two-Photon Photovoltaic Effect in Gallium Arsenide," Optics Letters, vol. 39, p. 5297, 2014.〕 and has potential in achieving energy-efficient electronic-photonic integrated circuits.〔(), B. Jalali and S. Fathpour, "Silicon Photonics," IEEE Journal of Lightwave Technology, vol. 24, p. 460, 2006.〕 ==References==
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