"Nello Carrara" Institute of Applied Physics-National Research Council, I-50019 Sesto Fiorentino, FI, Italy.
Sensors (Basel). 2021 Mar 3;21(5):1729. doi: 10.3390/s21051729.
We present a compact laser-induced fluorescence (LIF) spectrometer prototype (SFIDA-405) designed for in-field operation in polar environments. It uses 405 nm excitation to acquire LIF spectra in the 450-930 nm spectral range on a solid surface via an optical-fiber coupled measurement head. The prototype (battery powered; module + measurement head weight: <1.6 kg) is controlled via a military-grade smartphone and has a limit of detection for chlorophyll better than 5 ng/cm. The instrument was successfully tested during two summer field campaigns in the Arctic (Svalbard Islands) and Antarctic (Southern Victoria Land) regions for studying biological soil crusts. To the best of the authors' knowledge, this represents the first LIF spectrometer used in situ in Antarctica to acquire LIF spectra directly on biological soil crusts. Finally, the paper also suggests the use of the SFIDA-405 prototype for different application fields.
我们展示了一种紧凑型激光诱导荧光（LIF）光谱仪原型（SFIDA-405），专为极地环境中的现场操作而设计。它使用 405nm 激发，通过光纤耦合测量头在固体表面上获取 450-930nm 光谱范围内的 LIF 光谱。该原型（电池供电；模块+测量头重量：<1.6 千克）通过军用级智能手机控制，对叶绿素的检测限优于 5ng/cm。该仪器在北极（斯瓦尔巴群岛）和南极（南极维多利亚地）地区的两次夏季野外考察中成功进行了测试，用于研究生物土壤结皮。据作者所知，这是首次在南极原位使用 LIF 光谱仪直接在生物土壤结皮上获取 LIF 光谱。最后，本文还提出了使用 SFIDA-405 原型的不同应用领域。
