Rapid Voltage Sensing with Single Nanorods via the Quantum Confined Stark Effect

Omri Bar-Elli, Dan Steinitz, Gaoling Yang, Ron Tenne, Anastasia Ludwig, Yung Kuo, Antoine Triller, Shimon Weiss, Dan Oron

פרסום מחקרי: פרסום בכתב עתמאמרביקורת עמיתים

תקציר

Properly designed colloidal semiconductor quantum dots (QDs) have already been shown to exhibit high sensitivity to external electric fields via the quantum confined Stark effect (QCSE). Yet, detection of the characteristic spectral shifts associated with the effect of the QCSE has traditionally been painstakingly slow, dramatically limiting the sensitivity of these QD sensors to fast transients. We experimentally demonstrate a new detection scheme designed to achieve shot-noise-limited sensitivity to emission wavelength shifts in QDs, showing feasibility for their use as local electric field sensors on the millisecond time scale. This regime of operation is already potentially suitable for detection of single action potentials in neurons at a high spatial resolution.

שפה מקוריתאנגלית
עמודים (מ-עד)2860-2867
מספר עמודים8
כתב עתACS Photonics
כרך5
מספר גיליון7
מזהי עצם דיגיטלי (DOIs)
סטטוס פרסוםפורסם - 24 יוני 2018
אירוע8th International Conference on Surface Plasmon Photonics (SPP) - Taipei
משך הזמן: 22 מאי 201726 מאי 2017

ASJC Scopus subject areas

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  • ???subjectarea.asjc.3100.3107???
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