Interleaved frequency comb by chip-scale acousto-optic phase modulation at polydimethylsiloxane for higher-resolution direct plasmonic comb spectroscopy

Abstract High-resolution spectroscopy unveils the fundamental physics of quantum states, molecular dynamics, and energy transfers. Ideally, a higher spectral resolution over a broader bandwidth is the prerequisite, but traditional spectroscopic techniques can only partially fulfill this requirement...

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Main Authors: San Kim, Tae-In Jeong, Robert A. Taylor, Kwangseuk Kyhm, Young-Jin Kim, Seungchul Kim
Format: Article
Language:English
Published: SpringerOpen 2025-04-01
Series:PhotoniX
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Online Access:https://doi.org/10.1186/s43074-025-00170-x
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author San Kim
Tae-In Jeong
Robert A. Taylor
Kwangseuk Kyhm
Young-Jin Kim
Seungchul Kim
author_facet San Kim
Tae-In Jeong
Robert A. Taylor
Kwangseuk Kyhm
Young-Jin Kim
Seungchul Kim
author_sort San Kim
collection DOAJ
description Abstract High-resolution spectroscopy unveils the fundamental physics of quantum states, molecular dynamics, and energy transfers. Ideally, a higher spectral resolution over a broader bandwidth is the prerequisite, but traditional spectroscopic techniques can only partially fulfill this requirement even with a bulky system. Here we report that a multi-frequency acousto-optic phase modulation at a chip-scale of soft polydimethylsiloxane can readily support a 200-times higher 0.5-MHz spectral resolution for the frequency-comb-based spectroscopy, while co-located plasmonic nanostructures mediate the strong light-matter interaction. These results suggest the potential of polydimethylsiloxane acousto-optic phase modulation for cost-effective, compact, multifunctional chip-scale tools in diverse applications such as quantum spectroscopy, high-finesse cavity analysis, and surface plasmonic spectroscopy.
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spelling doaj-art-1db8ef2cdf62407897f1189e5cab61922025-08-20T03:18:42ZengSpringerOpenPhotoniX2662-19912025-04-016111610.1186/s43074-025-00170-xInterleaved frequency comb by chip-scale acousto-optic phase modulation at polydimethylsiloxane for higher-resolution direct plasmonic comb spectroscopySan Kim0Tae-In Jeong1Robert A. Taylor2Kwangseuk Kyhm3Young-Jin Kim4Seungchul Kim5Department of Cogno-Mechatronics Engineering, College of Nanoscience and Nanotechnology, Pusan National UniversityDepartment of Cogno-Mechatronics Engineering, College of Nanoscience and Nanotechnology, Pusan National UniversityDepartment of Physics, Clarendon Laboratory, University of OxfordDepartment of Cogno-Mechatronics Engineering, College of Nanoscience and Nanotechnology, Pusan National UniversityDepartment of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST)Department of Cogno-Mechatronics Engineering, College of Nanoscience and Nanotechnology, Pusan National UniversityAbstract High-resolution spectroscopy unveils the fundamental physics of quantum states, molecular dynamics, and energy transfers. Ideally, a higher spectral resolution over a broader bandwidth is the prerequisite, but traditional spectroscopic techniques can only partially fulfill this requirement even with a bulky system. Here we report that a multi-frequency acousto-optic phase modulation at a chip-scale of soft polydimethylsiloxane can readily support a 200-times higher 0.5-MHz spectral resolution for the frequency-comb-based spectroscopy, while co-located plasmonic nanostructures mediate the strong light-matter interaction. These results suggest the potential of polydimethylsiloxane acousto-optic phase modulation for cost-effective, compact, multifunctional chip-scale tools in diverse applications such as quantum spectroscopy, high-finesse cavity analysis, and surface plasmonic spectroscopy.https://doi.org/10.1186/s43074-025-00170-xOptical spectroscopyChip-scale acousto-optic phase modulationPolydimethylsiloxaneFrequency combPlasmonics
spellingShingle San Kim
Tae-In Jeong
Robert A. Taylor
Kwangseuk Kyhm
Young-Jin Kim
Seungchul Kim
Interleaved frequency comb by chip-scale acousto-optic phase modulation at polydimethylsiloxane for higher-resolution direct plasmonic comb spectroscopy
PhotoniX
Optical spectroscopy
Chip-scale acousto-optic phase modulation
Polydimethylsiloxane
Frequency comb
Plasmonics
title Interleaved frequency comb by chip-scale acousto-optic phase modulation at polydimethylsiloxane for higher-resolution direct plasmonic comb spectroscopy
title_full Interleaved frequency comb by chip-scale acousto-optic phase modulation at polydimethylsiloxane for higher-resolution direct plasmonic comb spectroscopy
title_fullStr Interleaved frequency comb by chip-scale acousto-optic phase modulation at polydimethylsiloxane for higher-resolution direct plasmonic comb spectroscopy
title_full_unstemmed Interleaved frequency comb by chip-scale acousto-optic phase modulation at polydimethylsiloxane for higher-resolution direct plasmonic comb spectroscopy
title_short Interleaved frequency comb by chip-scale acousto-optic phase modulation at polydimethylsiloxane for higher-resolution direct plasmonic comb spectroscopy
title_sort interleaved frequency comb by chip scale acousto optic phase modulation at polydimethylsiloxane for higher resolution direct plasmonic comb spectroscopy
topic Optical spectroscopy
Chip-scale acousto-optic phase modulation
Polydimethylsiloxane
Frequency comb
Plasmonics
url https://doi.org/10.1186/s43074-025-00170-x
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