2021年6月8日 · To address this problem, we present adaptive tip-enhanced nano-spectroscopy optimizing the nano-optical vector-field at the tip apex. Specifically, we demonstrate dynamic wavefront shaping of...

2024年10月8日 · Tip-enhanced photoluminescence (TEPL) measurements are performed with subnanometer spatial resolution on individual molecules decoupled from a metallic substrate by a thin NaCl layer. TEPL spectra reveal progressive fluorescence quenching with decreasing tip-molecule distance when electrons tunneling from the tip of a scanning tunneling ...

Using combined tip-enhanced Raman scattering and photoluminescence (PL) nanospectroscopy and nanoimaging, we study the associated effects on the excitonic properties in monolayer WSe 2 grown by physical vapor deposition. With ∼15 nm spatial resolution, we resolve nanoscale correlations of PL spectral intensity and shifts with crystal edges ...

近年来，针尖增强拉曼光谱技术 （tip-enhanced Raman spectroscopy, TERS） 将单个分子的光学表征空间分辨率提升至亚纳米尺度。 与TERS中光散射过程不同，具有相似分辨率的光致发光 （photoluminescence, PL） 成像由于荧光在金属附近会发生猝灭无法实现亚纳米级的突破。

In the implementation of adaptive TEPL (a-TEPL) and adaptive TERS (a-TERS), we achieve consistent improvement in field enhancement by optimizing the excitation wavefront for a given...

In this review, we discuss the fundamental working mechanism of PL enhancement by plasmonic tip, and then highlight recent advances in TEPL studies for low-dimensional quantum materials.

2020年9月15日 · Tip-enhanced nano-spectroscopy and -imaging, such as tip-enhanced photoluminescence (TEPL), tip-enhanced Raman spectroscopy (TERS), and others, have become indispensable from materials science to single molecule studies.

2016年1月7日 · Using combined tip-enhanced Raman scattering (TERS) and photoluminescence (TEPL) nano-spectroscopy and -imaging, we study the associated effects on the excitonic properties in monolayer WSe2 grown by physical vapor deposition (PVD).

2022年7月15日 · A similar near-field technique for nanoscale optical imaging is the tip-enhanced photoluminescence (TEPL) (7–9). In both these techniques, a metallic nanotip is used to enhance and confine the light field within a nanometric volume in the vicinity of the tip apex through plasmon resonance, and the sample is probed through this confined light ...

2022年4月19日 · 因此，空间分辨率更高的 尖端增强拉曼散射(ters) 和 尖端增强光致发光(tepl) 也广泛应用于进一步表征材料纳米尺度的结构、电子或形态异质性。 TERS和TEPL在新型二维材料表征中是如何应用的？