Qiu Jun, Qi Xiangdong, Li Xiaotian, Xu Wenhui, Tang Yuguo, Ma Zhenyu
Appl Opt. 2018 Oct 20;57(30):8936-8941. doi: 10.1364/AO.57.008936.
A new broadband Raman spectrometer has been developed, to the best of our knowledge, using a double-echelle spatial heterodyne Raman spectrometer (DESHRS). The instrument is constructed by using two echelle gratings. Masks are used to remove the shadow ghosts caused by the different orders of the two echelle gratings. Raman spectra of inorganic solid targets and methanol are given, and Raman shifts of up to 3000 cm are obtained by the DESHRS. The instrument has shown that a broadband coverage and high resolution can be achieved simultaneously to meet the requirements of Raman measurements, covering 3590 cm with 1.21 cm spectral resolution.
据我们所知，一种新型宽带拉曼光谱仪已采用双阶梯光栅空间外差拉曼光谱仪（DESHRS）研制成功。该仪器由两个阶梯光栅构成。使用掩膜去除由两个阶梯光栅不同级次引起的阴影鬼线。给出了无机固体靶和甲醇的拉曼光谱，通过DESHRS获得了高达3000 cm⁻¹的拉曼位移。该仪器已表明可同时实现宽带覆盖和高分辨率，以满足拉曼测量的要求，覆盖范围为3590 cm⁻¹，光谱分辨率为1.21 cm⁻¹。
