All-optical spin valve effect in nonlinear optics

Shani Izhak*, Aviv Karnieli, Ofir Yesharim, Shai Tsesses, Ady Arie

*Corresponding author for this work

Research output: Contribution to journalLetterpeer-review

1 Scopus citations


More than three decades after the inception of electron spin-based information encoding inspired by nonlinear electro-optic devices, we present a complementary approach: nonlinear optical devices directly inspired by spintronics. We theoretically propose an all-optical spin-valve device and a spin-dependent beam splitter, where the optical pseudospin is a superposition of signal and idler beams undergoing a sum-frequency generation process inside a 2D nonlinear photonic crystal. We delve into the operation of these devices, examining key properties such as the transmission angle and splitting ratio, optically controlled by the pump beam. Our findings open new avenues for both classical and quantum optical information processing in the frequency domain.

Original languageEnglish
Pages (from-to)1025-1028
Number of pages4
JournalOptics Letters
Issue number4
StatePublished - 15 Feb 2024


FundersFunder number
Helen Diller Quantum Center
Technion—Israel Institute of Technology
Weinstein Institute
Yad Hanadiv Foundation
Stanford University
Israel Science Foundation969/22, 3117/23


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