On the strong and narrow absorption signature in lactose at 0.53THz
Abstract
The authors report on the room-temperature characterization of a narrow absorption signature in an organic molecular solid (α-lactose monohydrate) centered around 530GHz and having a full width at half maximum as small as 23GHz. Three different spectrometric techniques were applied, two of them (tunable photomixing and tunable frequency multiplication) having a high enough resolution (⪡100MHz) to accurately curve fit the signature and determine that it is much better described by a Lorentzian than a Gaussian function. The Lorentzian model provides an estimate of 14ps for the damping time associated with this signature.
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α-lactose has resonant frequencies at 0.53, 1.2, and 1.4 THz.
“We prepared sample disks made from α-lactose monohydrate powders (Spectrum Chemical Mfg. Corp., Gardena, CA, USA) with resonant frequencies at 0.53, 1.2, and 1.4 THz [50,51].”
From Translation-Invariant Zero-Phase Wavelet Methods for Feature Extraction in Terahertz Time-Domain Spectroscopy (2022) · cites this paper as [51]
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Self-citationTerahertz Fourier transform characterization of biological materials in a liquid phase
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Windowing of THz time-domain spectroscopy signals: A study based on lactose
Vázquez-Cabo, J., Chamorro-Posada, P., Fraile-Peláez, F. J., Rubiños-López, Ó., López-Santos, J. M., & Martín-Ramos, P. (2016) · Optics Communications · doi:10.1016/j.optcom.2015.12.069 · Cited by 42 · see citing works
On the influence of water on THz vibrational spectral features of molecular crystals
Mitryukovskiy, S., Vanpoucke, D. E. P., Bai, Y., Hannotte, T., Lavancier, M., Hourlier, D., Roos, G., & Peretti, R. (2022) · Physical Chemistry Chemical Physics · doi:10.1039/d1cp03261e · Cited by 28 · see citing works
Khani, M. E., & Arbab, M. H. (2022) · Sensors · doi:10.3390/s22062305 · Cited by 22 · see citing works
- Authors
- Brown, E. R., Bjarnason, J. E., Fedor, A. M., & Korter, T. M.
- Affiliations
- University of California, Santa Barbara (US)
- Syracuse University (US)
- ORCID
- Korter, T. M.
- Venue
- Applied Physics Letters
- Publisher
- AIP Publishing
- Published
- 2007-02-05
- Volume
- 90
- Issue
- 6
- ISSN
- 0003-6951 (ISSN-L)
- 1077-3118
- OpenAlex
- W2073871575
- Cited by
- 124
- References
- 9
- Citations by year
- 2025: 3 · 2024: 5 · 2023: 7 · 2022: 13 · 2021: 9 · 2020: 5 · 2019: 9 · 2018: 1 · 2017: 2 · 2016: 8 · 2015: 8 · 2014: 5 · 2013: 14 · 2012: 9
- FWCI
- 5.36
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Applied Physics Letters (publishedVersion)
- Journal of Bioresource Management (submittedVersion)
- Topics
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Terahertz technology and applications
- Physical Sciences › Chemistry › Spectroscopy › Spectroscopy and Laser Applications
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Superconducting and THz Device Technology
- Keywords
- alpha-lactose monohydrate, terahertz absorption, narrow absorption lines, Lorentzian line shape, damping time, organic molecular solids
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