Giant Electro-Optical Effect mu Ge/SiGe Coupled Quantum Wells

Zithunzi zojambulidwa ndi silicon pakadali pano zimaganiziridwa ngati nsanja yamtundu wotsatira wazithunzithunzi zolumikizirana.Komabe, kupanga ma compact and low power Optical modulators kumakhalabe kovuta.Apa tikunena za chimphona chachikulu cha electro-optical mu zitsime za Ge/SiGe zophatikizidwa ndi quantum.Kulonjeza kumeneku kumachokera ku mphamvu yodabwitsa ya Stark chifukwa cha kutsekeka kosiyana kwa ma elekitironi ndi mabowo m'zitsime za Ge/SiGe quantum.Chodabwitsa ichi chitha kugwiritsidwa ntchito kuwongolera kwambiri magwiridwe antchito a ma modulator opepuka poyerekeza ndi njira zomwe zapangidwa mpaka pano mu silicon photonics.Tayesa kusintha kwa refractive index mpaka 2.3 × 10-3 pa voltage ya 1.5 V yokhala ndi mphamvu yosinthira VπLπ ya 0.046 Vcm.Chiwonetserochi chimapereka njira yopangira ma modulators othamanga kwambiri otengera makina a Ge/SiGe.