A Terahertz Fast-Sweep Optoelectronic Frequency-Domain Spectrometer: Calibration, Performance Tests, and Comparison with TDS and FDS
Source abstract
Abstract
We report calibration and performance tests of a terahertz fast-sweep optoelectronic frequency-domain spectrometer designed for industrial applications, aimed at quantifying its performance specifications and demonstrating its suitability for envisaged usage. The frequency scale is calibrated using atmospheric water vapour lines and a silicon wafer etalon; the amplitude linearity is verified using a set of silicon plates. Instrument performance is tested by measuring transmission properties of a variety of representative samples and comparing with a time-domain spectrometer and a frequency-domain spectrometer.
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Research context
OpenAlex topics: Terahertz technology and applications · Spectroscopy and Laser Applications · Photonic and Optical Devices
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
National Physical Laboratory, Hampton Road, Teddington TW11 0 LW, UK
TOPTICA Photonics AG, Lochhamer Schlag 19, 82166 Gräfelfing, Germany
Fraunhofer Institute for Telecommunications, Heinrich Hertz Institute, Einsteinufer 37, 10587 Berlin, Germany
Funding
European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie
References (37)
Show source-provided references
1. Terahertz spectroscopy as a new tool for insulating material analysis and condition monitoring10.1109/MEI.2011.5871366 ↗
2. Terahertz spectroscopic identification of explosive and drug simulants concealed by various hiding techniques10.1364/AO.54.004495 ↗
3. Terahertz spectroscopy on polymers: A review of morphological studies10.1016/j.molstruc.2011.07.036 ↗
4. Quantification of solid-phase chemical reactions using the temperature-dependent terahertz pulsed spectroscopy, sum rule, and Arrhenius theory: Thermal decomposition of α-lactose monohydrate10.1364/OE.453528 ↗
5. Discriminating gasoline fuel contamination in engine oil by terahertz time-domain spectroscopy10.1016/j.triboint.2017.10.026 ↗
6. Sensing water absorption in hygrothermally aged epoxies with terahertz time-domain spectroscopy10.1021/acs.analchem.0c04453 ↗
7. Terahertz time domain spectroscopy for carrier lifetime mapping in the picosecond to microsecond regime10.1364/OE.23.012900 ↗
8. Direct comparison of time-resolved terahertz spectroscopy and Hall Van der Pauw methods for measurement of carrier conductivity and mobility in bulk semiconductors10.1364/JOSAB.34.001392 ↗
9. Naftaly, M., Vieweg, N., and Deninger, A. (2019). Industrial applications of terahertz sensing: State of play. Sensors, 19.10.3390/s19194203 ↗
10. Terahertz quality inspection for automotive and aviation industries10.1007/s10762-019-00639-4 ↗
11. True, J., Xi, C., Jessurun, N., Ahi, K., and Asadizanjani, N. (2021). Review of THz-based semiconductor assurance. Opt. Eng., 60.10.1117/1.OE.60.6.060901 ↗
12. Tao, Y.H., Fitzgerald, A.J., and Wallace, V.P. (2020). Non-contact, non-destructive testing in various industrial sectors with terahertz technology. Sensors, 20.10.3390/s20030712 ↗
13. In-situ evaluation of porosity in thermal barrier coatings based on the broadening of terahertz time-domain pulses: Simulation and experimental investigations10.1364/OE.27.028150 ↗
14. Krimi, S., Klier, J., Jonuscheit, J., von Freymann, G., Urbansky, R., and Beigang, R. (2016). Highly accurate thickness measurement of multi-layered automotive paints using terahertz technology. Appl. Phys. Lett., 109.10.1063/1.4955407 ↗
15. Sun, J., and Hu, F. (2020). Three-dimensional printing technologies for terahertz applications: A review. Int. J. Microw.-Comput.-Aided Eng., 30.10.1002/mmce.21983 ↗
16. Coutaz, J.L., Garet, F., and Wallace, V.P. (2018). Principles of Terahertz Time-Domain Spectroscopy, CRC Press.10.1201/b22478 ↗
17. Neu, J., and Schmuttenmaer, C.A. (2018). Tutorial: An introduction to terahertz time domain spectroscopy (THz-TDS). J. Appl. Phys., 124.10.1063/1.5047659 ↗
18. Fundamentals of measurement in terahertz time-domain spectroscopy10.1007/s10762-013-0042-z ↗
19. Safian, R., Ghazi, G., and Mohammadian, N. (2019). Review of photomixing continuous-wave terahertz systems and current application trends in terahertz domain. Opt. Eng., 58.10.1117/1.OE.58.11.110901 ↗
20. (2022). TeraScan 780/1550 Topsellers for Frequency—Domain SpectroscopyBrochures, TOPTICA Photonics AG.
21. Optoelectronic frequency-modulated continuous-wave terahertz spectroscopy with 4 THz bandwidth10.1038/s41467-021-21260-x ↗
22. Terahertz Multilayer Thickness Measurements: Comparison of Optoelectronic Time and Frequency Domain Systems
23. Naftaly, M., and Gregory, A. (2021). Terahertz and Microwave Optical Properties of Single-Crystal Quartz and Vitreous Silica and the Behavior of the Boson Peak. Appl. Sci., 11.10.3390/app11156733 ↗
24. Methodologies for determining the dynamic ranges and signal-to-noise ratios of terahertz time-domain spectrometers10.1364/OL.34.001213 ↗
25. Dynamic range in terahertz time-domain transmission and reflection spectroscopy10.1364/OL.30.000029 ↗
26. Taylor, J. (1997). Introduction to Error Analysis, the Study of Uncertainties in Physical Measurements, Univerity Science Books.
27. Tricks for ticks10.1038/nphys4090 ↗
28. Absolute frequency measurement of the optical clock transition in with an uncertainty of using a frequency link to international atomic time10.1080/09500340.2017.1384514 ↗
29. Gordon, I., Rothman, L., Hargreaves, R., Hashemi, R., Karlovets, E., Skinner, F., Conway, E., Hill, C., Kochanov, R., and Tan, Y. (2022). The HITRAN2020 molecular spectroscopic database. J. Quant. Spectrosc. Radiat. Transf., 277.10.1016/j.jqsrt.2021.107949 ↗
30. An etalon-based method for frequency calibration of terahertz time-domain spectrometers (THz TDS)10.1016/j.optcom.2009.12.025 ↗
31. Frequency calibration of terahertz time-domain spectrometer using air-gap etalon10.1109/TTHZ.2014.2357895 ↗
32. Linearity calibration of amplitude and power measurements in terahertz systems and detectors10.1364/OL.34.000674 ↗
33. Amplitude Calibration in Terahertz Time-Domain Spectroscopy Using Attenuation Standards10.1007/s10762-017-0440-8 ↗
34. A reliable method for extraction of material parameters in terahertz time-domain spectroscopy10.1109/2944.571775 ↗
35. Melo, A.M., Gobbi, A.L., Piazzetta, M.H., and Da Silva, A.M. (2012). Cross-shaped terahertz metal mesh filters: Historical review and results. Adv. Opt. Technol., 2012.10.1155/2012/530512 ↗
36. Roggenbuck, A., Schmitz, H., Deninger, A., Mayorga, I.C., Hemberger, J., Güsten, R., and Grüninger, M. (2010). Coherent broadband continuous-wave terahertz spectroscopy on solid-state samples. New J. Phys., 12.10.1088/1367-2630/12/4/043017 ↗
37. THz-spectroscopy on high density polyethylene with different crystallinity10.1007/s10762-015-0219-8 ↗