Наночастицы NaLuF-=SUB=-4-=/SUB=-: Yb-=SUP=-3+-=/SUP=-, Er-=SUP=-3+-=/SUP=-, Ce-=SUP=-3+-=/SUP=- для создания компактных волноводных усилителей и визуализации в ближнем ИК диапазоне спектра

Оптика и спектроскопия Pub Date : 2023-01-01 DOI:10.21883/os.2023.05.55718.75-22

К. В. Хайдуков, И. В. Крылов, Марина Юрьевна Николаева, В. В. Рочева, Е. В. Хайдуков

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Abstract

Fluoride nanocrystals co-doped with lanthanide ions are well known due to the possibility of conversion near-infrared (NIR) radiation into photoluminescence with large anti-Stokes shift. Owing to upconversion effect, such nanomaterials have shown great potential in photonics and biomedicine. However, fluoride nanoparticles can be reconfigured to photoluminescence with a Stokes shift into the near-infrared region of the spectrum. In this work, we focused on the properties of NaRF4: Yb3+, Er3+, Ce3+ (R = Y, Lu) nanoparticles exhibiting intense stokes luminescence in the vicinity of 1530 nm at 975 nm excitation. Photoluminescence quantum efficiency of synthesized nanoparticles was evaluated as 28% at 0.6 W/cm2 excitation intensity. Based on the photoluminescent properties of nanoparticles we designed compact waveguide amplifier for C-band telecommunication and developed time gated imaging system for NIR-to-NIR biovisualization.

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纳米粒子NaLuF- 4-= -4-= -4-= - SUP -3+-= - SUP -3 =- SUP -3+-= SUP -3 =- SUP -创造紧凑波导放大器和近红外光谱可视化

与镧系离子共掺杂的氟化物纳米晶体是众所周知的，因为它可以将近红外(NIR)辐射转化为具有大反斯托克斯位移的光致发光。由于上转换效应，这类纳米材料在光子学和生物医学方面显示出巨大的潜力。然而，氟化物纳米颗粒可以被重新配置为具有斯托克斯位移到光谱的近红外区域的光致发光。在本研究中，我们重点研究了在975 nm激发下，在1530 nm附近表现出强烈斯托克斯发光的NaRF4: Yb3+， Er3+， Ce3+ (R = Y, Lu)纳米粒子的性质。在0.6 W/cm2激发强度下，合成的纳米粒子的光致发光量子效率为28%。基于纳米颗粒的光致发光特性，设计了用于c波段通信的小型波导放大器，并开发了用于近红外到近红外生物可视化的时间门控成像系统。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Оптика и спектроскопия

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