Abstract
We report the development of an invertible wavefront switching system, consisting of a spatial light modulator (SLM), a diffuser, a signal beam, and a control beam. The shaped optical signal beam can be switched between on and off states by disturbing the diffuser with a control beam via thermo-optic effect. During the wavefront shaping process, the extinction ratio of the signal beam is iteratively optimized. We demonstrate a high extinction ratio of nearly 20. In addition, when the control beam is on, a switch with either on or off state can be configured to via encoding different wavefront patterns to the signal beam. This work potentially advances many physical or bio-medical applications employing all-optical switches.
| Original language | English |
|---|---|
| Article number | 106466 |
| Journal | Optics and Laser Technology |
| Volume | 131 |
| Online published | 11 Jul 2020 |
| DOIs | |
| Publication status | Published - Nov 2020 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 15 Life on Land
Research Keywords
- High extinction ratio
- Invertible system
- Wavefront optimization
Fingerprint
Dive into the research topics of 'An invertible wavefront switching system with a high extinction ratio'. Together they form a unique fingerprint.Projects
- 3 Finished
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GRF: Development of Optical-resolution Photoacoustic Microscopy with Compensation of Absorption Saturation
WANG, L. (Principal Investigator / Project Coordinator)
1/01/19 → 6/07/22
Project: Research
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GRF: Quantitative Photoacoustic Imaging of Blood Oxygen Saturation in Deep Tissue
WANG, L. (Principal Investigator / Project Coordinator)
1/01/18 → 24/06/22
Project: Research
-
ECS: Large-Scale Single-Cell Photoacoustic Microscopy of the Brain in Action
WANG, L. (Principal Investigator / Project Coordinator)
1/01/17 → 30/12/20
Project: Research
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