6 papers
Surface passivation for narrowing optical linewidth of silicon T centers in nanophotonic devices
Fariba Islam, Chang-Min Lee, Kyu-Young Kim +4
Silicon T centers are promising spin-photon interfaces in solid-state platforms for telecom-compatible, scalable quantum information technologies. A major challenge for T centers i…
Bright Telecom Spin-Photon Interface in Silicon Photonics
Carolina Crosta, Amirehsan Alizadehherfati, Purbita Purkayastha +5
Silicon is an attractive host for scalable quantum photonics, but the absence of bright telecom-band emitters with optically addressable spin states has limited its use for spin-ph…
Cavity Enhanced Emission from Telecom Rare-Earth System in Colloidal Host
Purbita Purkayastha, Cristian Gonzalez, Cameron Mollazadeh +6
Erbium incorporated in a ceria (CeO2) host offers strong potential as a spin qubit platform, providing a pathway toward telecom-compatible quantum memory. But erbium is a dim emitt…
Inverse-Designed Photonic Crystal Cavities with Controllable Far-Field Numerical Aperture
Neelesh Kumar Vij, Purbita Purkayastha, Jasvith Raj Basani +1
Photonic crystal cavities confine light to subwavelength volumes, enabling strong light-matter interactions for applications in low-power photonics, opto-electronics, nonlinear opt…
Bright and Purcell-enhanced single photon emission from a silicon G center
Kyu-Young Kim, Chang-Min Lee, Amirehsan Boreiri +5
Silicon G centers show significant promise as single photon sources in a scalable silicon platform. But these color centers have large non-radiative decay and a low Debye-Waller fa…
Purcell enhanced emission and saturable absorption of cavity-coupled CsPbBr quantum dots
Purbita Purkayastha, Shaun Gallagher, Yuxi Jiang +4
Halide perovskite semiconductors have emerged as promising materials for the development of solution-processed, scalable, high performance optoelectronic devices such as light-emit…