Advances in MOEMS-Based External Cavity QCLs
| Autor: | Marcel Rattunde, Yuri V. Flores, André Dreyhaupt, Lorenz Butschek, André Merten, Ralf Ostendorf, Marko Haertelt, C. Schilling, Jan Grahmann, Markus Schwarzenberg, Stefan Hugger |
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| Rok vydání: | 2019 |
| Předmět: |
Physics
Millisecond Scanner business.industry 02 engineering and technology Grating 021001 nanoscience & nanotechnology Laser 01 natural sciences law.invention 010309 optics Homodyne detection Cascade law 0103 physical sciences Optoelectronics Electronics 0210 nano-technology business Diffraction grating |
| Zdroj: | 2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC). |
| Popis: | The combination of broadband quantum cascade lasers (QCLs) with a micro-electro-mechanical system (MOEMS) scanner with integrated diffraction grating as a wavelength-selective and optical feedback providing element enables the realization of compact, portable and robust spectroscopy systems. As previously showed [12], such MOEMS-based external cavity (EC)-QCLs configurations lead to measurement times as low as ∼1 millisecond per QCL-tuning range (hundreds of cm−1) while eliminating the need of homodyne detection systems, such as lock-in electronics. Also non-resonant (quasistatic) MOEMS grating scanners providing scan rates of tens of Hz as well as static setting of arbitrary wavelengths are possible, keeping the advantage of using small MOEMS footprints, ruggedness, and low power consumption. |
| Databáze: | OpenAIRE |
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