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arXiv 2006.032202020-06-05physics.ins-detphysics.optics

Single-shot terahertz spectrometer using a microbolometer camera

Dogeun Jang, Hanran Jin, Ki-Yong Kim

备注：: 9 pages, 5 figures

英文摘要：

We demonstrate a single-shot terahertz spectrometer consisting of a modified Mach-Zehnder interferometer and a microbolometer focal plane array. The spectrometer is simple to use and can measure terahertz field autocorrelations and spectral power with no moving parts and no ultrashort-pulsed laser. It can effectively detect radiation at 10$\sim$40 THz when tested with a thermal source. It can be also used to measure the complex refractive index of a sample material. In principle, it can characterize both laser-based and non-laser-based terahertz sources and potentially cover 1$\sim$10 THz with specially-designed terahertz microbolometers.

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