Results 191 to 200 of about 20,078 (253)

Super‐Resolution Imaging With Fluorotellurite Glass Microspheres

Nanophotonics, Volume 15, Issue 5, 16 March 2026.
Microsphere lenses made from fluorotellurite glass with a high refractive index and excellent transparency were used to develop a super‐resolution imaging technique and ultramicroscopic objective modules. This approach enables efficient, stable, and precisely controllable imaging with broad potential in life sciences and nanotechnology.
Haonan Zhuo, Shengchuang Bai, Zhouyi Yu, Zhenmin Wang, Zejie Zheng, Yu Zhuang, Yina Jiang, Tianyao Zhang, Hao Li, Lixiang An, Duanduan Wu, Xunsi Wang, Hui Yang, Guoqiang Gu   +13 more
wiley   +1 more source

Theoretical Analysis of Enhanced Microwave Measurement Using Structured Beams. [PDF]

Sensors (Basel)
Yin Z, Gao F, Chen T, Wang C, Lu X, Yang A, Peng Y.   +6 more
europepmc   +1 more source

Molecular Dynamics in Tetrafluoridoborate Salts of Divalent Metals Studied by Nuclear Magnetic Resonance Spectroscopy

ChemPhysChem, Volume 27, Issue 5, 13 March 2026.
We studied molecular dynamics in four tetrafluoridoborate salts by means of nuclear magnetic resonance. Characteristical motions in these systems are thermally‐activated reorientations of BF4− ions. We determine the activation energies for these processes and compare the dynamics with those in borohydride systems that share the tetrahedral geometry of ...
Anton Gradišek, Kristian Radan, Matic Lozinšek   +2 more
wiley   +1 more source

Between Order and Confusion: Clearing up Structural Misconceptions in Carbon Materials Nomenclature

Angewandte Chemie International Edition, Volume 65, Issue 11, 9 March 2026.
Despite the versatile use of carbon materials, inconsistent terminology and inadequate characterization – especially regarding graphene structures based on sp2‐hybridized carbon atoms – often cause confusion. This perspective clarifies terms like graphite, graphitic carbon, non‐graphitic carbon, and amorphous carbon by aligning IUPAC definitions with X‐
Chantal Glatthaar, Felix Badaczewski, Peter J. Klar, Bernd M. Smarsly   +3 more
wiley   +1 more source

Microfiber knot resonator with 10⁷ Q-factor record. [PDF]

Light Sci Appl
Zhou X, Ding Z, Xu F.
europepmc   +1 more source

Visible Brillouin-quadratic microlaser in a high-Q thin-film lithium niobate microdisk. [PDF]

Nat Commun
Luo X, Li C, Huang X, Lin J, Gao R, Yao Y, Qiu Y, Yang Y, Wang L, Yu H, Cheng Y.   +10 more
europepmc   +1 more source

Narrow-linewidth erbium-doped fibre lasers

, 1991
This thesis describes research towards narrow-linewidth and single-longitudinal-mode erbium-doped fibre lasers operating on the 1.55µm region. The work is concerned with the physics and technology of narrow-linewidth fibre lasers. Factors which affect the spectral width and number of modes oscillating in an erbium-doped fibre laser are described, with ...
openaire   +1 more source

1-MHz linewidth VCSEL enabled by monolithically integrated passive cavity for high-stability chip-scale atomic clocks. [PDF]

Light Sci Appl
Tang Z, Li C, Zhang X, Ren W, Shen K, Li C, Bai Q, Li J, Ren A, Wang H, Luo X, Xu H, Wu J.   +12 more
europepmc   +1 more source

Narrow linewidth ISB transitions (2% range)

This deliverable is the implementation of semiconductor quantum wells that exhibit intersubband absorptions with a narrow linewidth of ...
openaire   +1 more source

Resonance fluorescence and indistinguishable photons from a coherently driven B centre in hBN. [PDF]

Nat Commun
Gérard D, Buil S, Watanabe K, Taniguchi T, Hermier JP, Delteil A.   +5 more
europepmc   +1 more source