Highly sensitive ultrasound detection using nanofabricated polymer micro-ring resonators
Abstract Photoacoustic (PA) imaging enables noninvasive volumetric imaging of biological tissues by capturing the endogenous optical absorption contrast. Conventional ultrasound detectors using piezoelectric materials have been widely used for transducing ultrasound signals into the electrical signa...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2023-06-01
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| Series: | Nano Convergence |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s40580-023-00378-2 |
| _version_ | 1797795495321534464 |
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| author | Youngseop Lee Hao F. Zhang Cheng Sun |
| author_facet | Youngseop Lee Hao F. Zhang Cheng Sun |
| author_sort | Youngseop Lee |
| collection | DOAJ |
| description | Abstract Photoacoustic (PA) imaging enables noninvasive volumetric imaging of biological tissues by capturing the endogenous optical absorption contrast. Conventional ultrasound detectors using piezoelectric materials have been widely used for transducing ultrasound signals into the electrical signals for PA imaging reconstruction. However, their inherent limitations in detection bandwidth and sensitivity per unit area have unfortunately constrained the performance of PA imaging. Optical based ultrasound detection methods emerge to offer very promising solutions. In particular, polymer micro-ring resonators (MRRs) in the form of integrated photonic circuits (IPC) enable significant reduction for the sensing area to 80 μm in diameter, while maintaining highly sensitive ultrasound detection with noise equivalent pressure (NEP) of 0.49 Pa and a broad detection frequency range up to 250 MHz. The continued engineering innovation has further transformed MRRs to be transparent to the light and thus, opens up a wide range of applications, including multi-modality optical microscope with isometric resolution, PA endoscope, photoacoustic computed tomography (PACT), and more. This review article summarizes and discusses the evolution of polymer MRR design and the associated nanofabrication process for improving the performance of ultrasound detection. The resulting novel imaging applications will also be reviewed and discussed. |
| first_indexed | 2024-03-13T03:18:49Z |
| format | Article |
| id | doaj.art-1905d77e896d4560b084c56a26e7ef36 |
| institution | Directory Open Access Journal |
| issn | 2196-5404 |
| language | English |
| last_indexed | 2024-03-13T03:18:49Z |
| publishDate | 2023-06-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Nano Convergence |
| spelling | doaj.art-1905d77e896d4560b084c56a26e7ef362023-06-25T11:24:44ZengSpringerOpenNano Convergence2196-54042023-06-0110111910.1186/s40580-023-00378-2Highly sensitive ultrasound detection using nanofabricated polymer micro-ring resonatorsYoungseop Lee0Hao F. Zhang1Cheng Sun2Department of Biomedical Engineering, Northwestern UniversityDepartment of Biomedical Engineering, Northwestern UniversityDepartment of Mechanical Engineering, Northwestern UniversityAbstract Photoacoustic (PA) imaging enables noninvasive volumetric imaging of biological tissues by capturing the endogenous optical absorption contrast. Conventional ultrasound detectors using piezoelectric materials have been widely used for transducing ultrasound signals into the electrical signals for PA imaging reconstruction. However, their inherent limitations in detection bandwidth and sensitivity per unit area have unfortunately constrained the performance of PA imaging. Optical based ultrasound detection methods emerge to offer very promising solutions. In particular, polymer micro-ring resonators (MRRs) in the form of integrated photonic circuits (IPC) enable significant reduction for the sensing area to 80 μm in diameter, while maintaining highly sensitive ultrasound detection with noise equivalent pressure (NEP) of 0.49 Pa and a broad detection frequency range up to 250 MHz. The continued engineering innovation has further transformed MRRs to be transparent to the light and thus, opens up a wide range of applications, including multi-modality optical microscope with isometric resolution, PA endoscope, photoacoustic computed tomography (PACT), and more. This review article summarizes and discusses the evolution of polymer MRR design and the associated nanofabrication process for improving the performance of ultrasound detection. The resulting novel imaging applications will also be reviewed and discussed.https://doi.org/10.1186/s40580-023-00378-2Photoacoustic imagingMicro-ring resonatorUltrasound detectorNano-fabricationMaskless lithographyNanoimprint lithography |
| spellingShingle | Youngseop Lee Hao F. Zhang Cheng Sun Highly sensitive ultrasound detection using nanofabricated polymer micro-ring resonators Nano Convergence Photoacoustic imaging Micro-ring resonator Ultrasound detector Nano-fabrication Maskless lithography Nanoimprint lithography |
| title | Highly sensitive ultrasound detection using nanofabricated polymer micro-ring resonators |
| title_full | Highly sensitive ultrasound detection using nanofabricated polymer micro-ring resonators |
| title_fullStr | Highly sensitive ultrasound detection using nanofabricated polymer micro-ring resonators |
| title_full_unstemmed | Highly sensitive ultrasound detection using nanofabricated polymer micro-ring resonators |
| title_short | Highly sensitive ultrasound detection using nanofabricated polymer micro-ring resonators |
| title_sort | highly sensitive ultrasound detection using nanofabricated polymer micro ring resonators |
| topic | Photoacoustic imaging Micro-ring resonator Ultrasound detector Nano-fabrication Maskless lithography Nanoimprint lithography |
| url | https://doi.org/10.1186/s40580-023-00378-2 |
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