Focusing Optical Phased Array for Optically Enabled Probing of the Retina with Subcellular Resolution
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arXiv
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| Main Authors: | , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866916295905116160 |
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| author | Hosseini, Pedram Agrawal, Prachi Mashayekh, Alireza Tabatabaei Johnen, Sandra Witzens, Jeremy Merget, Florian |
| author_facet | Hosseini, Pedram Agrawal, Prachi Mashayekh, Alireza Tabatabaei Johnen, Sandra Witzens, Jeremy Merget, Florian |
| contents | We present a silicon-nitride-based optical phased array with built-in focusing and steering capability, that operates at 522 nm and is aimed at complementing a micro-electrode array for joint electrical and optical probing of retinal tissue. It achieves subcellular resolution with a beam diameter of 1.4 um at a focal point located above the chip. Targeted cellular excitation can be achieved by steering the beam through a combination of wavelength tuning and simplified thermo-optical phase shifters with a single electrical input for each of transverse beam steering and selection of the focal plane. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2406_14406 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Focusing Optical Phased Array for Optically Enabled Probing of the Retina with Subcellular Resolution Hosseini, Pedram Agrawal, Prachi Mashayekh, Alireza Tabatabaei Johnen, Sandra Witzens, Jeremy Merget, Florian Optics Applied Physics We present a silicon-nitride-based optical phased array with built-in focusing and steering capability, that operates at 522 nm and is aimed at complementing a micro-electrode array for joint electrical and optical probing of retinal tissue. It achieves subcellular resolution with a beam diameter of 1.4 um at a focal point located above the chip. Targeted cellular excitation can be achieved by steering the beam through a combination of wavelength tuning and simplified thermo-optical phase shifters with a single electrical input for each of transverse beam steering and selection of the focal plane. |
| title | Focusing Optical Phased Array for Optically Enabled Probing of the Retina with Subcellular Resolution |
| topic | Optics Applied Physics |
| url | https://arxiv.org/abs/2406.14406 |