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Related Experiment Video

Updated: Jun 19, 2026

Lensless Fluorescent Microscopy on a Chip

Lensless Fluorescent Microscopy on a Chip

Published on: August 17, 2011

Multiplexed back focal plane imaging with on-chip integrated microlens array.

Magdalena Furman¹, Marcin Muszyński¹, Przemysław Oliwa¹

¹Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Warsaw, Poland.

Nature Communications

|April 4, 2026

Summary

This summary is machine-generated.

Researchers developed 3D-printed microlens arrays for on-chip angle-resolved spectroscopy. This compact, integrated platform enables scalable, cryo-compatible photonic devices for advanced quantum material research.

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Last Updated: Jun 19, 2026

Lensless Fluorescent Microscopy on a Chip

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Published on: April 11, 2025

Area of Science:

Nanophotonics
Quantum Materials
Optical Spectroscopy

Background:

On-chip optical architectures are crucial for scalable, cryo-compatible photonic devices.
Angle-resolved spectroscopy is essential for characterizing quantum materials and photonic platforms.

Purpose of the Study:

To introduce a novel method for spatially resolved momentum-space imaging using integrated microlenses.
To demonstrate a compact and versatile platform for angle-resolved spectroscopy on microcavities.

Main Methods:

Integration of 3D-printed microlens arrays directly onto semiconductor optical microcavities.
Utilizing high numerical aperture microlenses for parallel back focal plane imaging across multiple locations.
Demonstrating the platform's compatibility with various cavity systems and cryogenic conditions.

Main Results:

Achieved parallel back focal plane imaging with 64 distinct locations using integrated microlenses.
Eliminated the need for bulky external microscope objectives while maintaining broad wavevector access.
Demonstrated enhanced collection efficiency and tightly focused excitation, reducing condensation thresholds by an order of magnitude.

Conclusions:

3D-printed microlens arrays offer a compact, versatile, and integrated solution for angle-resolved spectroscopy.
This technology advances the development of scalable, cryo-compatible photonic devices for nanophotonics and quantum materials research.
The platform enables next-generation characterization of quantum phenomena like exciton-polariton Bose-Einstein condensation.