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Tomographic Volumetric Additive Manufacturing (TVAM) employs a digital micromirror device (DMD) to project amplitude light patterns into rotating resin volumes, producing 3D geometries through photopolymerization. Typically, the light projection efficiency in such binary amplitude modulator-based systems is below a few percent. Recent advancements introduced phase encoding in TVAM using binary amplitude modulators and the Lee Hologram method, increasing axial control and boosting light efficiency to about 10%. In this work, we present the first 3D printing platform utilizing a phase light modulator (PLM), based on an array of micro-electro-mechanical piston mirrors. Compared to amplitude encoding, phase encoding with the PLM yields a 70-fold increase in laser power efficiency. By coupling this efficient light engine with a speckle reduction method in holographic volumetric additive manufacturing (HoloVAM), we experimentally demonstrate printing 3D objects across different scales from hundreds of micrometers to centimeters and with various materials from acrylate-based resins to soft hydrogels, including cell-laden hydrogels with a concentration of 1 million cells per mL. Micro-CT revealed a\n                    <jats:inline-formula>\n                      <jats:alternatives>\n                        <jats:tex-math>$$\\sim 30.3\\,\\mu {m}$$<\/jats:tex-math>\n                        <mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\">\n                          <mml:mrow>\n                            <mml:mo>~<\/mml:mo>\n                            <mml:mn>30.3<\/mml:mn>\n                            <mml:mspace\/>\n                            <mml:mi>\u03bc<\/mml:mi>\n                            <mml:mi>m<\/mml:mi>\n                          <\/mml:mrow>\n                        <\/mml:math>\n                      <\/jats:alternatives>\n                    <\/jats:inline-formula>\n                    as the smallest positive feature printed. Moreover, we introduce the use of gelatin Thiol\/Norbornene as a material for printing with the Holographic VAM technique, which allows us to print large-scale objects (up to\n                    <jats:inline-formula>\n                      <jats:alternatives>\n                        <jats:tex-math>$$(3\\,\\times 3\\times 4\\,{{cm}}^{3})$$<\/jats:tex-math>\n                        <mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\">\n                          <mml:mrow>\n                            <mml:mo>(<\/mml:mo>\n                            <mml:mn>3<\/mml:mn>\n                            <mml:mspace\/>\n                            <mml:mo>\u00d7<\/mml:mo>\n                            <mml:mn>3<\/mml:mn>\n                            <mml:mo>\u00d7<\/mml:mo>\n                            <mml:mn>4<\/mml:mn>\n                            <mml:mspace\/>\n                            <mml:msup>\n                              <mml:mrow>\n                                <mml:mi>cm<\/mml:mi>\n                              <\/mml:mrow>\n                              <mml:mrow>\n                                <mml:mn>3<\/mml:mn>\n                              <\/mml:mrow>\n                            <\/mml:msup>\n                            <mml:mo>)<\/mml:mo>\n                          <\/mml:mrow>\n                        <\/mml:math>\n                      <\/jats:alternatives>\n                    <\/jats:inline-formula>\n                    within 2\u2009minutes using only a 150\u2009mW laser diode. The PLM opens up new avenues in volumetric AM for holographic techniques using low-cost single-mode laser diodes.\n                  <\/jats:p>","DOI":"10.1038\/s41377-026-02331-4","type":"journal-article","created":{"date-parts":[[2026,5,19]],"date-time":"2026-05-19T03:57:50Z","timestamp":1779163070000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["High-efficiency multi-scale holographic volumetric 3D printing with a phase light modulator"],"prefix":"10.1038","volume":"15","author":[{"given":"Maria Isabel","family":"\u00c1lvarez-Casta\u00f1o","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Riccardo","family":"Rizzo","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Viola","family":"Sgarminato","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ye","family":"Pu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2078-0273","authenticated-orcid":false,"given":"Christophe","family":"Moser","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2026,5,19]]},"reference":[{"key":"2331_CR1","doi-asserted-by":"publisher","DOI":"10.1002\/adma.201904209","volume":"31","author":"PN Bernal","year":"2019","unstructured":"Bernal, P. 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