Coker Zachary, Troyanova-Wood Maria, Traverso Andrew J, Yakupov Talgat, Utegulov Zhandos N, Yakovlev Vladislav V
Opt Express. 2018 Feb 5;26(3):2400-2409. doi: 10.1364/OE.26.002400.
Brillouin spectroscopy and imaging has experienced a renaissance in recent years seeing vast improvements in methodology and increasing number of applications. With this resurgence has come the development of new spontaneous Brillouin instruments that often tout superior performance compared to established conventional systems such as tandem Fabry-Perot interferometers (TFPI). The performance of these new systems cannot always be thoroughly examined beyond the scope of the intended application, as applications often take precedence in reports. We therefore present evaluation of three modern Brillouin spectrometers: two VIPA-based spectrometers with wavelength-specific notch filters, and one scanning 6-pass TFPI. Performance analysis is presented along with a discussion about the dependence of measurements on excitation laser source and the various susceptibilities of each system.
近年来，布里渊光谱学与成像技术经历了复兴，在方法学上有了巨大改进，应用数量也不断增加。随着这种复苏，新型自发布里渊仪器得以开发，与串联法布里 - 珀罗干涉仪（TFPI）等成熟的传统系统相比，这些仪器往往宣称具有卓越性能。由于应用在报告中通常占据优先地位，这些新系统的性能在预期应用范围之外并不总能得到全面检验。因此，我们展示了对三款现代布里渊光谱仪的评估：两款基于掠入射平面光栅（VIPA）且带有波长特定陷波滤波器的光谱仪，以及一款扫描式六通道TFPI。文中给出了性能分析，并讨论了测量对激发激光源的依赖性以及每个系统的各种敏感性。
