Repository logo

Infoscience

  • English
  • French
Log In
Logo EPFL, École polytechnique fédérale de Lausanne

Infoscience

  • English
  • French
Log In
  1. Home
  2. Academic and Research Output
  3. Journal articles
  4. Holographic tomographic volumetric additive manufacturing
 
research article

Holographic tomographic volumetric additive manufacturing

alvarez-Castano, Maria Isabel  
•
Madsen, Andreas Gejl
•
Madrid-Wolff, Jorge  
Show more
February 11, 2025
Nature Communications

Several 3D light-based printing technologies have been developed that rely on the photopolymerization of liquid resins. A recent method, so-called Tomographic Volumetric Additive Manufacturing, allows the fabrication of microscale objects within tens of seconds without the need for support structures. This method works by projecting intensity patterns, computed via a reverse tomography algorithm, into a photocurable resin from different angles to produce a desired 3D shape when the resin reaches the polymerization threshold. Printing using incoherent light patterning has been previously demonstrated. In this work, we show that a light engine with holographic phase modulation unlocks new potential for volumetric printing. The light projection efficiency is improved by at least a factor 20 over amplitude coding with diffraction-limited resolution and its flexibility allows precise light control across the entire printing volume. We show that computer-generated holograms implemented with tiled holograms and point-spread-function shaping mitigates the speckle noise which enables the fabrication of millimetric 3D objects exhibiting negative features of 31 mu m in less than a minute with a 40 mW light source in acrylates and scattering materials, such as soft cell-laden hydrogels, with a concentration of 0.5 million cells per mL.

  • Files
  • Details
  • Metrics
Type
research article
DOI
10.1038/s41467-025-56852-4
Web of Science ID

WOS:001420017600007

PubMed ID

39934122

Author(s)
alvarez-Castano, Maria Isabel  

École Polytechnique Fédérale de Lausanne

Madsen, Andreas Gejl

University of Southern Denmark

Madrid-Wolff, Jorge  

École Polytechnique Fédérale de Lausanne

Sgarminato, Viola  

École Polytechnique Fédérale de Lausanne

Boniface, Antoine  

École Polytechnique Fédérale de Lausanne

Gluckstad, Jesper

University of Southern Denmark

Moser, Christophe  

École Polytechnique Fédérale de Lausanne

Date Issued

2025-02-11

Publisher

NATURE PORTFOLIO

Published in
Nature Communications
Volume

16

Issue

1

Article Number

1551

Subjects

SPECKLE-NOISE

•

PHASE

•

LIGHT

•

GENERATION

•

BEAM

•

Science & Technology

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LAPD  
FunderFunding(s)Grant NumberGrant URL

EC | Eurostars

196971

Swiss National Science Foundation (SNSF)

NNF16OC0021948;VOLTA-E!

Novo Nordisk Foundation

Show more
Available on Infoscience
February 26, 2025
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/247223
Logo EPFL, École polytechnique fédérale de Lausanne
  • Contact
  • infoscience@epfl.ch

  • Follow us on Facebook
  • Follow us on Instagram
  • Follow us on LinkedIn
  • Follow us on X
  • Follow us on Youtube
AccessibilityLegal noticePrivacy policyCookie settingsEnd User AgreementGet helpFeedback

Infoscience is a service managed and provided by the Library and IT Services of EPFL. © EPFL, tous droits réservés