纳米光子学
材料科学
光电子学
时间分辨率
纳米尺度
灵敏度(控制系统)
激光器
电子线路
晶体管
纳米技术
图像分辨率
亮度
信号(编程语言)
测距
光学
物理
计算机科学
电子工程
电信
电压
工程类
程序设计语言
量子力学
作者
Yongliang Chen,Chi Li,Tieshan Yang,Е. А. Екимов,Carlo Bradac,Son Tung Ha,Milos Toth,Igor Aharonovich,Toan Trong Tran
出处
期刊:ACS Nano
[American Chemical Society]
日期:2023-01-20
卷期号:17 (3): 2725-2736
被引量:11
标识
DOI:10.1021/acsnano.2c10974
摘要
All-optical nanothermometry has become a powerful, remote tool for measuring nanoscale temperatures in applications ranging from medicine to nano-optics and solid-state nanodevices. The key features of any candidate nanothermometer are brightness, sensitivity, and (signal, spatial, and temporal) resolution. Here, we demonstrate a real-time, diamond-based nanothermometry technique with excellent sensitivity (1.8% K-1) and record-high resolution (5.8 × 104 K Hz-1/2 W cm-2) based on codoped nanodiamonds. The distinct performance of our approach stems from two factors: (i) temperature sensors─nanodiamonds cohosting two group IV color centers─engineered to emit spectrally separated Stokes and anti-Stokes fluorescence signals under excitation by a single laser source and (ii) a parallel detection scheme based on filtering optics and high-sensitivity photon counters for fast readout. We demonstrate the performance of our method by monitoring temporal changes in the local temperature of a microcircuit and a MoTe2 field-effect transistor. Our work advances a powerful, alternative strategy for time-resolved temperature monitoring and mapping of micro-/nanoscale devices such as microfluidic channels, nanophotonic circuits, and nanoelectronic devices, as well as complex biological environments such as tissues and cells.
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