Results 91 to 100 of about 8,310 (226)

An Organic Semiconductor Lasing Crystal Featuring Triplet‐Triplet Annihilation

Aggregate, Volume 7, Issue 2, February 2026.
An organic semiconductor crystal emitter of BH001 is reported to exhibit stimulated emission with the aid of triplet‐triplet annihilation (TTA). The crystal achieves low‐threshold blue laser emission (Pth = 15.4 µJ/cm2) under femtosecond pulsed laser excitation. Notably, stimulated emission persists even when pumped by nanosecond lasers, indicating its
Tianhao Tang, Hao Gong, Fei Yu, Fengqing Jiao, Juye Zhu, Junyou Pan, Pingyang Wang, Shihong Song, Fangqing Ge, Zhijia Wang, Yishi Wu, Hongbing Fu   +11 more
wiley   +1 more source

Luminescence analysis of a postglacial landscape in northeastern Norway and northern Finland

Boreas
Portable optically stimulated luminescence (pOSL) analysis allows rapid relative dating of sediments that potentially can be calibrated against known OSL ages to provide an age estimate for landforms across a large area.
Alastair Goodship, Helena Alexanderson, Joanna Anjar   +2 more
doaj   +1 more source

Les sables de Fontainebleau: a natural quartz reference sample and its characterisation [PDF]

, 2017
Fundamental studies on luminescence production in natural quartz require samples which can be studied by groups of laboratories using complementary methods.
Adamiec, Gregorz, Burbidge, Christopher I., Chruscinska, Alicja, Fasoli, Mauro, Friedrich, Johannes, Kreutzer, Sebastien, Martini, Marco, Polymeris, George S., Sanderson, David, Schmidt, Christoph   +9 more
core  

Geochronology of the Whittlesey sedimentary succession, eastern England: The ‘Pompeii’ of the British late Middle Pleistocene to Holocene record

Journal of Quaternary Science, Volume 41, Issue 2, Page 260-287, February 2026.
ABSTRACT The sedimentary succession at Whittlesey preserves a unique British late Middle Pleistocene to Holocene record back to a time equivalent to at least marine oxygen isotope stage 8 (ca. 250 ka). This study builds on previously published sedimentology, geochronology and palaeoecology results to establish 20 sedimentary facies associations, with ...
H. E. Langford, M. D. Bateman, R. M. Briant, D. J. Horne   +3 more
wiley   +1 more source

Assessing the intensity of Late Quaternary humid phases in the Nefud Desert, northern Arabia

Journal of Quaternary Science, Volume 41, Issue 2, Page 207-218, February 2026.
ABSTRACT The climate history of the major dryland zones of the world, such as the Saharo–Arabian Desert belt, plays a key role in the dispersal of early humans through these intermittently inhospitable regions. Here, we assess the relative intensity of Late Quaternary humid phases in northern Arabia through lithological, geochemical, palaeoecological ...
Richard Clark‐Wilson, Simon J. Armitage, Ian Candy, Paul S. Breeze, Nick A. Drake, Huw S. Groucutt, Abdullah M. Alsharekh, Faisal Al‐Jibreen, Michael D. Petraglia, David B. Ryves   +9 more
wiley   +1 more source

Filomicelle‐Embedded Composite Hydrogels for Localized Gelation Within the Anterior Chamber of the Eye

Small, Volume 22, Issue 7, 2 February 2026.
A composite hydrogel (C‐gel) incorporating PEG‐b‐PPS filomicelles enables localized in situ gelation and sustained nanocarrier release within the anterior chamber. The filamentous structure promotes spatial confinement of multi‐arm polymer crosslinking, even upon injection into large aqueous volumes, and gradually transitions into spherical micelles ...
Hyeohn Kim, Sofia Lara Ochoa, Swagat Sharma, Asmaa A. Youssif, Benjamin R Thomson, Mark Johnson, Evan A. Scott   +6 more
wiley   +1 more source

Differential Mountain‐Building in the South Tian Shan Revealed by Multi‐Spatiotemporal Foreland Deformation

Tectonics, Volume 45, Issue 2, February 2026.
Abstract Understanding how spatially variable mountain‐building processes proceed within large intracontinental orogens provides critical insights into continental tectonics and regional paleoenvironmental evolution. Here, we address this issue in the central South Tian Shan (cSTS), a key transitional segment between the well‐studied eastern and ...
Feng Li, Xuhua Shi, Julien Charreau, Hanlin Chen, Jérôme Lavé, Xiaogan Cheng, Jin Ge, Pierre‐Henri Blard, Rong Yang, Etienne Large, Catherine Zimmermann, Marie Protin   +11 more
wiley   +1 more source

The power of the past: materializing collective memory at early medieval lordly centres

Early Medieval Europe, Volume 34, Issue 1, Page 34-69, February 2026.
The repurposing of earlier sites and monuments is an enduringly popular theme in early medieval archaeology, but in England it has attracted little interest among Late Saxon and early post‐Conquest studies. From the tenth century, however, an increasingly prevalent pattern is discernible of secular lords locating their power centres in relation to ...
Duncan W. Wright, Oliver H. Creighton, David Gould, Scott Chaussée, Tim Kinnaird, Michael Shapland, Aayush Srivastava, Sam Turner   +7 more
wiley   +1 more source

Isothermal Thermoluminescence Dating of Coral Reef Calcite: Implications for Sea‐Level Change

Geophysical Research Letters, Volume 53, Issue 2, 28 January 2026.
Abstract Reconstructing past sea‐level changes is critical in Quaternary science. On remote oceanic reefs, aragonite‐to‐calcite alteration occurs during subaerial exposure, directly recording the timing of sea‐level fall. U–Th dating of coral calcite is challenging due to open‐system issues.
Junjie Wei, Hui Zhao, Junjie Zhang, Haiwei Zhang, Leibin Wang, Yupei Li, Dongxue Li, Shuai Zhang, Kefu Yu, Jianjun Qu   +9 more
wiley   +1 more source

LUMINESCENCE DATING OF AN ANCIENT WALLED SETTLEMENT IN ORKHON VALLEY, MONGOLIA

Proceedings of the Mongolian Academy of Sciences, 2018
We investigated the potential of the optically stimulated luminescence (OSL) method to date young (<1000 years) samples collected in the Orkhon Valley Cultural Landscape, Mongolia. Quartz showed an infrared signal; therefore the post-IR OSL method was
Tengis S, Saran S, Munkhbayar L, Bemmann J   +3 more
doaj   +1 more source