Lensless endoscopy via wavefront shaping for fluorescence imaging

Robert Kuschmierz; Jakob Dremel; Martin Kroll; Elias Scharf; Juergen Czarske

doi:10.1117/12.3008142

13 March 2024 Lensless endoscopy via wavefront shaping for fluorescence imaging

Robert Kuschmierz, Jakob Dremel, Martin Kroll, Elias Scharf, Juergen Czarske

Author Affiliations +

Proceedings Volume PC12851, Adaptive Optics and Wavefront Control for Biological Systems X; PC128510P (2024) https://doi.org/10.1117/12.3008142
Event: SPIE BiOS, 2024, San Francisco, California, United States

Abstract

Fiber bundles are used in endoscopy for pixelated image transfer. Due to scattering of the effective refractive index, the phase information is lost, however. Digital optical phase conjugation has been used to reverse this effect partially, which enables endoscopes without distal optics and diffraction-limited 3D capability. However, imaging is limited to a single wavelength. We demonstrate multispectral and broadband imaging using spatial light modulators with a phase shift exceeding 2pi. Imaging can be achieved by correcting the sending, receiving or both beam paths, enabling single shot-RGB or confocal fluorescence imaging.

Conference Presentation

Citation Download Citation

Robert Kuschmierz, Jakob Dremel, Martin Kroll, Elias Scharf, and Juergen Czarske "Lensless endoscopy via wavefront shaping for fluorescence imaging", Proc. SPIE PC12851, Adaptive Optics and Wavefront Control for Biological Systems X, PC128510P (13 March 2024); https://doi.org/10.1117/12.3008142

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE