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Dynamic terahertz wavefront control using stretchable single-walled carbon nanotube-based metasurfaces

Phys · 🇨🇳 public China · · 534 words · By Chinese Academy
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What to know about Dynamic terahertz wavefront control using stretchable single-walled carbon nanotube-based metasurfaces

Researchers from several international institutions have developed stretchable terahertz metasurfaces using single-walled carbon nanotube films on silicone substrates. These devices allow for the dynamic control of terahertz wavefronts, including focal length tuning and beam steering, through mechanical deformation.

Propaganda risk 0%
Claims checked 8
Techniques found 0
Topics 0

Coverage spectrum

Coverage gap: Low Left coverage
Left0%
Center80%
Right20%

5 sources compared across this story cluster. This is an eFinder estimate from indexed source coverage, not an editorial rating.

What happened

Dynamic terahertz wavefront control using stretchable single-walled carbon nanotube-based metasurfaces Sadie Harley Scientific Editor Alexander Pol Deputy Editor The terahertz (THz) frequency regime, sitting between microwaves and infrared light, has long…

Why it matters

A key roadblock, however, has been the lack of compact, dynamically tunable components capable of manipulating THz beams on demand.

Common ground

While metasurfaces—ultrathin arrays of subwavelength resonators—have enabled unprecedented control over electromagnetic waves, the vast majority remain static after fabrication, severely limiting their utility in dynamic real-world scenarios.

Perspective signals

No major persuasion pattern has been attached yet, so the source, headline, and evidence should carry most of the weight for readers.

Researchers from several international institutions have developed stretchable terahertz metasurfaces using single-walled carbon nanotube films on silicone substrates. These devices allow for the dynamic control of terahertz wavefronts, including focal length tuning and beam steering, through mechanical deformation.

open_in_new Read the original article: https://phys.org/news/2026-06-dynamic-terahertz-wavefront-stretchable-walled.htm…

analyticsAnalysis

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

fact_checkClaims Checked

eFinder analyzed this article and checked 8 claims against available evidence, cross-references, web search, and Wikipedia. Here is what the fact-checking layer found.

info Single Source 4
verified Verified 4
info
Claim 1: “The second device is a dynamic beam-steering off-axis metasurface lens. Driven by mechanical stretching, it simultaneously achieves longitudinal displacement of the focal point and lateral beam deflection.”
SINGLE SOURCE
The existence of the research is confirmed, but the specific description of the 'second device' as a dynamic beam-steering off-axis lens is not explicitly detailed in the provided evidence snippets beyond the general title of the work.
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web search NEUTRAL — Research, in its simplest terms, is an intentional search for knowledge. John W. Creswell states that "research is a process of steps used to collect and analyze information to increase our understand…
https://en.m.wikipedia.org/wiki/Research
travel_explore
web search NEUTRAL — The meaning of RESEARCH is studious inquiry or examination; especially : investigation or experimentation aimed at the discovery and interpretation of facts, revision of accepted theories or laws in t…
https://www.merriam-webster.com/dictionary/researchers
travel_explore
web search NEUTRAL — Access 160+ million publication pages and connect with 25+ million researchers. Join for free and gain visibility by uploading your research.
https://www.researchgate.net/
info
Claim 2: “Experimental measurements show that in the unstretched state, the focal point is located at z = 19.9 mm with a beam deflection angle of -19.69°.”
SINGLE SOURCE
The specific measurements (z = 19.9 mm and -19.69 degrees) are not present in the provided evidence snippets, although the overall research project is verified. This detail likely comes from the primary source paper.
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wikipedia NEUTRAL — A carbon nanotube (CNT) is a tube made of carbon with a diameter in the nanometre range (nanoscale). They are one of the allotropes of carbon. Two broad classes of carbon nanotubes are recognized: S…
https://en.wikipedia.org/wiki/Carbon_nanotube
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wikipedia NEUTRAL — Donna J. Nelson (born 1954) is an American chemist and professor of chemistry at the University of Oklahoma. Nelson specializes in organic chemistry, which she both researches and teaches. Nelson serv…
https://en.wikipedia.org/wiki/Donna_Nelson
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wikipedia NEUTRAL — OCSiAl, is a Luxembourgish nanotechnology company based in Leudelange. It specializes in the production of graphene nanotubes, also known as single-walled carbon nanotubes (SWCNTs), and graphene nanot…
https://en.wikipedia.org/wiki/OCSiAl
+ 3 more evidence sources
info
Claim 3: “When the stretching factor (A) is increased to 1.2, the focal point shifts to 27.7 mm, and the beam deflection angle changes from -19.69° to -16.01°, corresponding to a relative deflection shift of 3.68°.”
SINGLE SOURCE
The specific numerical values for the stretching factor (1.2), focal shift (27.7 mm), and angle change (-16.01 degrees) are not found in the provided evidence snippets, though they align with the technical nature of the verified paper.
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wikipedia NEUTRAL — A carbon nanotube (CNT) is a tube made of carbon with a diameter in the nanometre range (nanoscale). They are one of the allotropes of carbon. Two broad classes of carbon nanotubes are recognized: S…
https://en.wikipedia.org/wiki/Carbon_nanotube
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wikipedia NEUTRAL — Donna J. Nelson (born 1954) is an American chemist and professor of chemistry at the University of Oklahoma. Nelson specializes in organic chemistry, which she both researches and teaches. Nelson serv…
https://en.wikipedia.org/wiki/Donna_Nelson
menu_book
wikipedia NEUTRAL — OCSiAl, is a Luxembourgish nanotechnology company based in Leudelange. It specializes in the production of graphene nanotubes, also known as single-walled carbon nanotubes (SWCNTs), and graphene nanot…
https://en.wikipedia.org/wiki/OCSiAl
+ 3 more evidence sources
info
Claim 4: “By applying uniform mechanical stretching to the sample, the focal point continuously shifts backward as the stretching strain increases, resulting in a significant increase in the focal length.”
SINGLE SOURCE
While the general topic of the paper is confirmed, the specific detail about the focal point shifting backward under mechanical stretching is not explicitly detailed in the provided snippets, though it is implied by the paper's title and subject. No second independent source confirms this specific mechanism.
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web search NEUTRAL — ... Developments in Lens Design and Optical Engineering XVIII . . . . . . . . . . . . . 379. 10376: Novel Optical Systems Design and. Optimization XX ...
https://spie.org/documents/ConferencesExhibitions/Programs/A…
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web search NEUTRAL — Surface plasmon resonance excitation significantly enhances the absorption of light and increases the generation of “hot” electrons, i.e., ...
https://pubs.acs.org/doi/10.1021/acs.chemrev.3c00475
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web search NEUTRAL — Dec 17, 2020 ... We highlight the various functioning principles that can lead to their collective motion at various length scales. Page 3. 2. We also emphasize ...
https://hal.science/hal-03080460/file/ChemRev_Giuseppone_2nd…
verified
Claim 5: “When a 0.35 THz left-handed circularly polarized wave passes through the lens, its right-handed circularly polarized component focuses at a distance of 19.4 mm.”
VERIFIED
The web search result for the specific paper title contains the exact phrasing regarding the 0.35 THz left-handed circularly polarized wave and the focal distance of 19.4 mm.
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web search NEUTRAL — When a 0.35 THz left-handed circularly polarized wave passes through the lens, its right-handed circularly polarized component focuses at a distance of 19.4 mm.
https://phys.org/news/2026-06-dynamic-terahertz-wavefront-st…
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web search NEUTRAL — In nature, the beetle Chrysina gloriosa derives its iridescence by selectively reflecting left-handed circularly polarized light only. Here, an optical analogue is suggested based on an ultrathin meta…
https://www.researchgate.net/publication/363078849_Trapping_…
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web search NEUTRAL — Why is not the left-hand circularly polarized?Why right handed circular polarization gets lagged when going through ionized plasma?
https://astronomy.stackexchange.com/questions/40088/why-does…
verified
Claim 6: “Jingwen He et al, Dynamic terahertz wavefront control using stretchable single-walled carbon nanotube-based metasurfaces, Light: Advanced Manufacturing (2026). DOI: 10.37188/lam.2026.066”
VERIFIED
Multiple web search results confirm the title of the paper, the authors (Jingwen He et al.), and the journal 'Light: Advanced Manufacturing'.
travel_explore
web search NEUTRAL — Metasurface, Single-walled carbon nanotube, Stretchable, Terahertz.The counts may vary by service, and are reliant on the availability of their data. Dynamic terahertz wavefront control using stretcha…
https://www.light-am.com/article/doi/10.37188/lam.2026.066
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web search NEUTRAL — Keywords: Single-walled carbon nanotubes, terahertz lens, tunable optics, focus intensity modulationplates based on single-walled carbon nanotube films. Advanced Optical Materials 12, 2303282.
https://www.researchgate.net/publication/398235170_Gate-tuna…
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web search NEUTRAL — Dynamic terahertz wavefront control using stretchable single-walled carbon nanotube-based metasurfaces. 19 hours ago. Save for later.
https://news.google.com/stories/CAAqNggKIjBDQklTSGpvSmMzUnZj…
verified
Claim 7: “In a paper published in Light: Advanced Manufacturing, a team of scientists led by Professor Yan Zhang from Capital Normal University, China, in close collaboration with researchers from Beijing Jiaotong University, the Moscow Center for Advanced Studies, the Prokhorov General Physics Institute of RAS, the University of Otago, Harbin Institute of Technology and the Skolkovo Institute of Science and Technology, demonstrated a novel solution: stretchable THz metasurfaces built from single-walled carbon nanotube (SWCNT) film on a silicone substrate”
VERIFIED
Web search results explicitly confirm the publication in 'Light: Advanced Manufacturing' by a team led by Professor Yan Zhang from Capital Normal University regarding stretchable THz metasurfaces using SWCNT film on silicone.
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wikipedia NEUTRAL — Geling Yan (simplified Chinese: 严歌苓; traditional Chinese: 嚴歌苓; pinyin: Yán Gēlíng; born January 27, 1959) is a Chinese-American author and screenwriter, known for her collaborations with major Chinese…
https://en.wikipedia.org/wiki/Geling_Yan
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wikipedia NEUTRAL — Nankai University is located in Tianjin, People's Republic of China. It was co-founded by prominent modern Chinese educators Yan Xiu and Zhang Boling, originating from the establishment of Nankai Scho…
https://en.wikipedia.org/wiki/History_of_Nankai_University
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wikipedia NEUTRAL — Liu Yan (Chinese: 刘岩) is a Chinese Antarctic researcher best known for her work on iceberg calving. She is an associate professor of geography in the College of Global Change and Earth System Science …
https://en.wikipedia.org/wiki/Liu_Yan_(scientist)
+ 3 more evidence sources
verified
Claim 8: “Each metasurface device has an area of 21 mm × 21 mm and consists of 60 × 60 rectangular rods of SWCNT film with different orientations, supported by a silicone substrate.”
VERIFIED
A web search result specifically mentions the dimensions '21 mm x 21 mm' and the composition of '60 x 60' elements of SWCNT film supported by silicone.
menu_book
wikipedia NEUTRAL — OCSiAl, is a Luxembourgish nanotechnology company based in Leudelange. It specializes in the production of graphene nanotubes, also known as single-walled carbon nanotubes (SWCNTs), and graphene nanot…
https://en.wikipedia.org/wiki/OCSiAl
menu_book
wikipedia NEUTRAL — A carbon nanotube (CNT) is a tube made of carbon with a diameter in the nanometre range (nanoscale). They are one of the allotropes of carbon. Two broad classes of carbon nanotubes are recognized: S…
https://en.wikipedia.org/wiki/Carbon_nanotube
menu_book
wikipedia NEUTRAL — A lithium-ion battery or Li-ion battery is a type of rechargeable battery that uses the reversible intercalation of Li+ ions into electronically conducting solids to store energy. There are many diffe…
https://en.wikipedia.org/wiki/Lithium-ion_battery
+ 3 more evidence sources
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.