Development of a passive optics heterodyne radiometer for near and mid-infrared spectroscopy

Sappey Andrew D.; Masterson Bernard P.

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Development of a passive optics heterodyne radiometer for near and mid-infrared spectroscopy

机译：用于近红外光谱法的无源光学外差辐射计的发展

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We have developed a novel laser heterodyne radiometer using a fiber-coupled distributed feedback laser as the local oscillator to perform spectroscopic measurements of small molecules in the near-infrared (NIR) spectral region. Here, we demonstrate measurement of HCN and CO2 in the lab and CH4 and CO2 in the atmospheric column. In addition, we demonstrate detection of a neutral iron, Fe(I), Fraunhofer line in the spectrum of the sun, at a vacuum wavelength of 1559.252 nm, that can be used to calibrate the wavelength scale of the instrument and enable verification of proper system operation for field applications. (C) 2021 Optical Society of America

机译：我们开发了一种新型的激光外差辐射计，使用光纤耦合分布反馈激光器作为本振器，在近红外（NIR）光谱区域对小分子进行光谱测量。在这里，我们演示了在实验室中测量HCN和CO2，以及在大气柱中测量CH4和CO2。此外，我们还演示了在1559.252 nm的真空波长下检测太阳光谱中的中性铁、铁（I）、夫琅和费谱线，该谱线可用于校准仪器的波长标度，并验证现场应用的正确系统操作。（2021）美国光学学会

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《Applied optics》 |2021年第4期|共10页
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Sappey Andrew D.; Masterson Bernard P.;
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OnPoint Digital Solut LLC 331 South 104th St Suite 100 Louisville CO 80027 USA;

OnPoint Digital Solut LLC 331 South 104th St Suite 100 Louisville CO 80027 USA;

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4. Transportable mid-infrared laser heterodyne radiometer operating in the shot-noise dominated regime [J] . Shen Fengjiao, Wang Gaoxuan, Wang Jingjing, Optics Letters . 2021,第13期

机译：可转运中红外激光外差辐射计在射击噪声主导地位
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7. Next generation MM-wave and SUBMM-wave heterodyne hybrid/MIC receivers for passive radiometer methodological satellite applications [C] . Norman A. Grant IEEE International Caracas Conference on Devices, Circuits and Systems . 2002

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8. Optimization of Mid-Infrared Passive and Active Devices that Enhance Mid-Infrared Quantum Cascade Laser-Based Gas Spectroscopy. [D] . Bentil, Ekua Nuama. 2011

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10. Observations of the Atmosphere of Mars using Mid-Infrared Heterodyne Spectroscopy and Investigation of Fabry-Pérot Quantum Cascade Lasers as Radiation Sources for Spectroscopy [O] . Stupar Dusan 2013

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11. Submillimeter-Wave Heterodyne Spectroscopy with a Compact Solid State Radiometer [R] . Taylor, J. R., Tannenwald, P. E., Erickson, N. R., 1985

机译：亚毫米波外差光谱与紧凑型固态辐射计

Development of a passive optics heterodyne radiometer for near and mid-infrared spectroscopy

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