4 papers
An integrated multi-THz tunable linear isolator based on electro-optic non-reciprocal strong coupling
Gwan In Kim, Violet Workman, OÄulcan E. Ãrsel +2
Optical isolators are essential for laser protection and robust signal routing, but the incorporation of the necessary magneto-optic (MO) materials in foundries has remained a chal…
Non-reciprocal electrooptic intermodal scattering with momentum engineered RF waves
Jieun Yim, Gwan In Kim, Violet Workman +4
Spatiotemporal modulation approaches have been often employed as alternatives for producing optical non-reciprocity without magneto-optic materials. Unidirectional inter-modal scat…
Low loss monolithic barium titanate on insulator integrated photonics with intrinsic quality factor >1 million
Gwan In Kim, Jieun Yim, Gaurav Bahl
Barium titanate (BTO) has been experiencing a surge of interest for integrated photonics technologies because of its large nonlinear optical coefficients, especially the Pockels co…
Giant non-reciprocity and gyration through modulation-induced Hatano-Nelson coupling in integrated photonics
Ogulcan E. Orsel, Jiho Noh, Penghao Zhu +4
Asymmetric energy exchange interactions, also known as Hatano-Nelson type couplings, enable the study of non-Hermitian physics and associated phenomena like the non-Hermitian skin…