Dispersive coherent Brillouin scattering spectroscopy
Frequency- and time-domain Brillouin scattering spectroscopy are powerful tools to read out the mechanical properties of complex systems in material and life sciences. Indeed, coherent acoustic phonons in the time-domain method offer superior depth resolution and a stronger signal than incoherent ac...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-02-01
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| Series: | Photoacoustics |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2213597922001124 |
| _version_ | 1811166115333668864 |
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| author | Ayumu Ishijima Shinga Okabe Ichiro Sakuma Keiichi Nakagawa |
| author_facet | Ayumu Ishijima Shinga Okabe Ichiro Sakuma Keiichi Nakagawa |
| author_sort | Ayumu Ishijima |
| collection | DOAJ |
| description | Frequency- and time-domain Brillouin scattering spectroscopy are powerful tools to read out the mechanical properties of complex systems in material and life sciences. Indeed, coherent acoustic phonons in the time-domain method offer superior depth resolution and a stronger signal than incoherent acoustic phonons in the frequency-domain method. However, it requires scanning of delay time between laser pulses for pumping and probing coherent acoustic phonons. Here, we present Brillouin scattering spectroscopy that spans the time and frequency domains to allow the multichannel detection of Brillouin scattering light from coherent acoustic phonons. Our technique traces the time-evolve Brillouin oscillations at the instantaneous frequency of a chromatic-dispersed laser pulse. The spectroscopic heterodyning of Brillouin scattering light in the frequency domain allows a single-frame readout of gigahertz-frequency oscillations with a spectrometer. As a proof of concept, we imaged heterogeneous thin films and biological cells over a wide bandwidth with nanometer depth resolution. |
| first_indexed | 2024-04-10T15:48:23Z |
| format | Article |
| id | doaj.art-459544dac71f4bbc97ff928a1cd88bf2 |
| institution | Directory Open Access Journal |
| issn | 2213-5979 |
| language | English |
| last_indexed | 2024-04-10T15:48:23Z |
| publishDate | 2023-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Photoacoustics |
| spelling | doaj.art-459544dac71f4bbc97ff928a1cd88bf22023-02-12T04:14:47ZengElsevierPhotoacoustics2213-59792023-02-0129100447Dispersive coherent Brillouin scattering spectroscopyAyumu Ishijima0Shinga Okabe1Ichiro Sakuma2Keiichi Nakagawa3Department of Precision Engineering, The University of Tokyo, Tokyo 113-8656, Japan; PRESTO, Japan Science and Technology Agency, Saitama 332-0012, Japan; Corresponding author at: Department of Precision Engineering, The University of Tokyo, Tokyo 113-8656, Japan.Department of Bioengineering, The University of Tokyo, Tokyo 113-8656, JapanDepartment of Precision Engineering, The University of Tokyo, Tokyo 113-8656, Japan; Department of Bioengineering, The University of Tokyo, Tokyo 113-8656, Japan; Medical Device Development and Regulation Research Center, The University of Tokyo, Tokyo 113-8656, JapanDepartment of Precision Engineering, The University of Tokyo, Tokyo 113-8656, Japan; Department of Bioengineering, The University of Tokyo, Tokyo 113-8656, JapanFrequency- and time-domain Brillouin scattering spectroscopy are powerful tools to read out the mechanical properties of complex systems in material and life sciences. Indeed, coherent acoustic phonons in the time-domain method offer superior depth resolution and a stronger signal than incoherent acoustic phonons in the frequency-domain method. However, it requires scanning of delay time between laser pulses for pumping and probing coherent acoustic phonons. Here, we present Brillouin scattering spectroscopy that spans the time and frequency domains to allow the multichannel detection of Brillouin scattering light from coherent acoustic phonons. Our technique traces the time-evolve Brillouin oscillations at the instantaneous frequency of a chromatic-dispersed laser pulse. The spectroscopic heterodyning of Brillouin scattering light in the frequency domain allows a single-frame readout of gigahertz-frequency oscillations with a spectrometer. As a proof of concept, we imaged heterogeneous thin films and biological cells over a wide bandwidth with nanometer depth resolution.http://www.sciencedirect.com/science/article/pii/S2213597922001124Brillouin microscopyBrillouin light scatteringBrillouin oscillationsPicosecond ultrasonicsPhonon spectroscopyChirped pulse spectroscopy |
| spellingShingle | Ayumu Ishijima Shinga Okabe Ichiro Sakuma Keiichi Nakagawa Dispersive coherent Brillouin scattering spectroscopy Photoacoustics Brillouin microscopy Brillouin light scattering Brillouin oscillations Picosecond ultrasonics Phonon spectroscopy Chirped pulse spectroscopy |
| title | Dispersive coherent Brillouin scattering spectroscopy |
| title_full | Dispersive coherent Brillouin scattering spectroscopy |
| title_fullStr | Dispersive coherent Brillouin scattering spectroscopy |
| title_full_unstemmed | Dispersive coherent Brillouin scattering spectroscopy |
| title_short | Dispersive coherent Brillouin scattering spectroscopy |
| title_sort | dispersive coherent brillouin scattering spectroscopy |
| topic | Brillouin microscopy Brillouin light scattering Brillouin oscillations Picosecond ultrasonics Phonon spectroscopy Chirped pulse spectroscopy |
| url | http://www.sciencedirect.com/science/article/pii/S2213597922001124 |
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