Nnukwu Mmetụta Electro-Optical na Ge/SiGe Coupled Quantum Wells

A na-ahụta fotonic nke dabeere na silicon ugbu a dị ka ikpo okwu photonics ọgbọ na-abịa maka nkwukọrịta agbakwunyere.Agbanyeghị, mmepe nke kọmpat na obere ike modulators ngwa anya ka bụ ihe ịma aka.N'ebe a, anyị na-akọ oke mmetụta eletrọ-optical dị na Ge/SiGe tinyere olulu mmiri quantum.Mmetụta a na-ekwe nkwa dabere na mmetụta Stark na-adịghị ahụkebe n'ihi mmachi dị iche iche nke eletrọn na oghere n'ime olulu mmiri Ge/SiGe quantum jikọtara ọnụ.Enwere ike iji ihe a na-eme ka arụmọrụ nke ndị modulators dịkwuo mma ma e jiri ya tụnyere usoro ọkọlọtọ emepụtara ugbu a na silicon photonics.Anyị atụlewo mgbanwe na ntugharị ntugharị aka ruo 2.3 × 10-3 na voltaji elegara anya nke 1.5 V yana arụmọrụ modulation kwekọrọ na VπLπ nke 0.046 Vcm.Ngosipụta a na-emeghe ụzọ maka mmepe nke ndị na-eme mgbanwe usoro ọsọ ọsọ dị elu nke ọma dabere na usoro ihe onwunwe Ge/SiGe.