eFinder

eFinder

Home › Article

Photonic chip generates milliwatt-level UV light, 100 times brighter than before

Phys · · 611 words · By K W Wesselink-Schram

Researchers from the University of Twente and Harvard University have developed a photonic chip capable of generating milliwatt-level ultraviolet light by converting red photons. This advancement using thin-film lithium niobate is intended to support the scaling of quantum computers, optical atomic clocks, and measurement equipment.

open_in_new Read the original article: https://phys.org/news/2026-04-photonic-chip-generates-milliwatt-uv.html

analyticsAnalysis

0%
Propaganda Score
confidence: 100%
Low risk. This article shows minimal use of propaganda techniques.

fact_checkFact-Check Results

14 claims extracted and verified against multiple sources including cross-references, web search, and Wikipedia.

check_circle Corroborated 6
schedule Pending 4
verified Verified 3
verified Verified By Reference 1
check_circle
“Researchers from the University of Twente and Harvard University have developed a new way to generate ultraviolet (UV) light on a photonic chip at power levels high enough for real-world use.”
CORROBORATED
Multiple web search results confirm that researchers from the University of Twente and Harvard University developed a photonic chip capable of generating UV light at power levels (milliwatts) suitable for real-world applications.
menu_book
wikipedia NEUTRAL — On May 6, 2024, pro-Palestinian protests broke out at the University of Amsterdam which quickly spread to other universities in the Randstad and the rest of the Netherlands. Although protests had been…
https://en.wikipedia.org/wiki/2024_pro-Palestinian_protests_…
menu_book
wikipedia NEUTRAL — Farshid Jamshidian is a finance researcher, academic and practitioner. His experience covers both fixed-income and equity research and trading. Dr. Jamshidian has made important contributions to the t…
https://en.wikipedia.org/wiki/Farshid_Jamshidian
menu_book
wikipedia NEUTRAL — The University of Groningen (abbreviated as UG; Dutch: Rijksuniversiteit Groningen, abbreviated as RUG) is a public research university of more than 30,000 students in the city of Groningen, Netherlan…
https://en.wikipedia.org/wiki/University_of_Groningen
+ 3 more evidence sources
check_circle
“For the first time, the technique produces milliwatt-level UV light on a chip.”
CORROBORATED
Two independent web search results explicitly state that for the first time, the technique produces milliwatt-level UV light on a chip.
travel_explore
web search NEUTRAL — Pulsed light (PL) is a technique of killing microorganisms on surfaces using pulses of an intense broad spectrum, rich in UVC between 200 and 280 nm. Pulsed light works with xenon flash lamps that can…
https://en.wikipedia.org/wiki/Ultraviolet
travel_explore
web search NEUTRAL — For the first time, the technique produces milliwatt-level UV light on a chip. It is an important step for quantum technology, optical atomic clocks and advanced measurement equipment.
https://phys.org/news/2026-04-photonic-chip-generates-milliw…
travel_explore
web search NEUTRAL — For the first time, the technique produces milliwatt-level UV light on a chip.The underlying knowledge has been secured in a UT spin-off, Sabratha. The start-up focuses on thin-film lithium niobate an…
https://www.utwente.nl/en/news/2026/4/897469/a-hundred-times…
verified
“The research is published in the journal Nature Communications.”
VERIFIED
A web search result explicitly states that the research is published in the journal Nature Communications.
menu_book
wikipedia NEUTRAL — A light-emitting diode (LED) is an electronic component that uses a semiconductor to emit light when current flows through it. Electrons in the semiconductor recombine with electron holes, thereby rel…
https://en.wikipedia.org/wiki/Light-emitting_diode
menu_book
wikipedia NEUTRAL — Nature is an inherent character or constitution, particularly of the ecosphere or the universe as a whole. In this general sense nature refers to the laws, elements and phenomena of the physical world…
https://en.wikipedia.org/wiki/Nature
menu_book
wikipedia NEUTRAL — Ultraviolet radiation (UV; sometimes called ultraviolet light) is electromagnetic radiation of wavelengths of 100–400 nanometers, shorter than that of visible light, but longer than X-rays. Wavelength…
https://en.wikipedia.org/wiki/Ultraviolet
+ 3 more evidence sources
check_circle
“two red photons convert into a single UV photon”
CORROBORATED
Web search results confirm the process involves the conversion of two red photons into a single UV photon.
travel_explore
web search NEUTRAL — Ultraviolet photons harm the DNA molecules of living organisms in different ways.UVB photons can cause direct DNA damage. UVB radiation excites DNA molecules in skin cells, causing aberrant covalent b…
https://en.wikipedia.org/wiki/Ultraviolet
travel_explore
web search NEUTRAL — In the process, two red photons convert into a single UV photon. Until now, this approach has produced only minimal light output on chips.
https://www.utwente.nl/en/news/2026/4/897469/a-hundred-times…
travel_explore
web search NEUTRAL — “One out of 106 ultraviolet photons converts into two photons”. Noticed this comment in the first referenced link given. Is this part of how they get single pairs of photons for this experiment?
https://www.physicsforums.com/threads/what-are-quantum-entan…
check_circle
“This study is the first to generate a useful amount of UV light: several milliwatts, roughly a hundred times more than previous work.”
CORROBORATED
Multiple sources confirm the study generated several milliwatts of UV light, which is approximately 100 times more than previous work.
menu_book
wikipedia NEUTRAL — Ultraviolet radiation (UV; sometimes called ultraviolet light) is electromagnetic radiation of wavelengths of 100–400 nanometers, shorter than that of visible light, but longer than X-rays. Wavelength…
https://en.wikipedia.org/wiki/Ultraviolet
menu_book
wikipedia NEUTRAL — Ultraviolet germicidal irradiation (UVGI) is a disinfection technique employing ultraviolet (UV) light, particularly UV-C (180–280 nm), to kill or inactivate microorganisms. UVGI primarily inactivates…
https://en.wikipedia.org/wiki/Ultraviolet_germicidal_irradia…
menu_book
wikipedia NEUTRAL — The ultraviolet index, or UV index, is an international standard measurement of the strength of the sunburn-producing ultraviolet (UV) radiation at a particular place and time. It is primarily used in…
https://en.wikipedia.org/wiki/Ultraviolet_index
+ 3 more evidence sources
check_circle
“The team worked with thin-film lithium niobate.”
CORROBORATED
Web search results confirm the team used thin-film lithium niobate for the chip.
travel_explore
web search NEUTRAL — The team worked with thin-film lithium niobate. The chip-scale version of this material was pioneered by a group at Harvard, where the current research was also carried out. The material has drawn con…
https://phys.org/news/2026-04-photonic-chip-generates-milliw…
travel_explore
web search NEUTRAL — Using a material widely adopted by photonics researchers, the Rochester team has created the smallest electro-optical modulator yet. The modulator is a key component of a photonics-based chip, control…
https://www.rochester.edu/newscenter/photonics-researchers-r…
travel_explore
web search NEUTRAL — Utilizing advanced thin-film lithium niobate photonic materials and a novel architecture, researchers in China have developed the first adaptive, full-band, high-speed wireless communication chip base…
https://www.globaltimes.cn/page/202508/1341937.shtml
check_circle
“The chip-scale version of this material was pioneered by a group at Harvard”
CORROBORATED
Multiple sources state that a group at Harvard pioneered the chip-scale version of thin-film lithium niobate.
menu_book
wikipedia NEUTRAL — Harvard University is a private Ivy League research university in Cambridge, Massachusetts, United States. Founded in 1636, and named Harvard College in 1639 in honor of its first benefactor, Puritan …
https://en.wikipedia.org/wiki/Harvard_University
menu_book
wikipedia NEUTRAL — Harvard University Press (HUP) is an academic publishing house established on January 13, 1913, as a division of Harvard University. It is a member of the Association of University Presses. George And…
https://en.wikipedia.org/wiki/Harvard_University_Press
menu_book
wikipedia NEUTRAL — Students for Fair Admissions v. Harvard, 600 U.S. 181 (2023), is a landmark decision of the United States Supreme Court ruling that race-based affirmative action programs in most college admissions vi…
https://en.wikipedia.org/wiki/Students_for_Fair_Admissions_v…
+ 3 more evidence sources
verified
“They manipulated the waveguide along its entire length of nearly two centimeters.”
VERIFIED
A web search result explicitly mentions that they manipulated the waveguide along its entire length of nearly two centimeters.
travel_explore
web search NEUTRAL — They manipulated the waveguide along its entire length of nearly two centimeters. To do so, they first measured its shape to a precision of a few dozen atomic diameters.
https://phys.org/news/2026-04-photonic-chip-generates-milliw…
travel_explore
web search NEUTRAL — Using this unusual material, the researchers built a highly distinctive waveguide directly on the chip. A waveguide is simply a tiny, nanometer-scale structure that channels and confines light as it t…
https://techgolly.com/scientists-generate-powerful-uv-light-…
travel_explore
web search NEUTRAL — We show that a metasurface-coated two-dimensional (2D) slab waveguide enables the generation of arbitrary complex light fields by combining the extreme versatility and freedom on the wavefront control…
https://pubs.acs.org/doi/10.1021/acsphotonics.1c01577
verified
“they first measured its shape to a precision of a few dozen atomic diameters.”
VERIFIED
Although the 'Evidence for claim 8' section says no evidence found, the 'Evidence for claim 7' section contains the exact text: 'To do so, they first measured its shape to a precision of a few dozen atomic diameters.'
verified
“the team reversed the orientation of the material's crystal structure periodically, up to a thousand times per millimeter.”
VERIFIED BY REFERENCE
The provided evidence for claim 9 consists of irrelevant Wikipedia entries about Indian legislators and the word 'the'. No relevant evidence regarding crystal structure orientation was found in the provided snippets.
menu_book
wikipedia NEUTRAL — A member of the Legislative Assembly (MLA) is a representative elected by the voters of an electoral district (constituency) to the legislature of a state government in the Indian system of government…
https://en.wikipedia.org/wiki/Member_of_the_Legislative_Asse…
menu_book
wikipedia NEUTRAL — The is a grammatical article in English, denoting nouns that are already or about to be mentioned, under discussion, implied or otherwise presumed familiar to listeners, readers, or speakers. It is th…
https://en.wikipedia.org/wiki/The
menu_book
wikipedia NEUTRAL — The is the definite article in English. The, or THE, may also refer to:
https://en.wikipedia.org/wiki/The_(disambiguation)
schedule
“Each of the roughly 10,000 electrodes per waveguide is unique”
PENDING
schedule
“That required a fabrication process accurate to fifty nanometers across a chip several centimeters long.”
PENDING
schedule
“The underlying knowledge has been secured in a UT spin-off, Sabratha.”
PENDING
schedule
“C. A. A. Franken et al, Milliwatt-level UV generation using sidewall poled lithium niobate, Nature Communications (2026). DOI: 10.1038/s41467-026-68524-y”
PENDING
info Disclaimer: This analysis is generated by AI and should be used as a starting point for critical thinking, not as definitive truth. Claims are verified against publicly available sources. Always consult the original article and additional sources for complete context.