Results 191 to 200 of about 19,911 (268)

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

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

Thermal Phase‐Modulation of Thickness‐Dependent CVD‐Grown 2D In2Se3

Advanced Functional Materials, Volume 36, Issue 12, 9 February 2026.
A comprehensive study of CVD‐grown 2D In2Se3 reveals a distinct thickness‐dependent phase landscape and a reversible, thermally driven transformation between β″ and β* variants. In situ TEM electron diffraction and Raman spectroscopy reveal structural dynamics, while the structural invariance of the α‐phase in ultrathin regimes highlights its stability—
Dasun P. W. Guruge, Zhenhuan Chen, Joseph F. S. Fernando, Chao Zhang, Liangzhi Kou, Konstantin L. Firestein, Dmitri V. Golberg   +6 more
wiley   +1 more source

Octave spanning operation of visible to SWIR integrated coil-stabilized Brillouin lasers. [PDF]

Light Sci Appl
Song M, Chauhan N, Harrington MW, Montifiore N, Liu K, Hunter AS, Caron C, Isichenko A, Niffenegger RJ, Blumenthal DJ.   +9 more
europepmc   +1 more source

RoHS‐Compliant, Cu‐Zn‐In‐Se‐Based Core/Multi‐shell Quantum Dots with Efficient and Tunable Short‐Wave Infrared Emission

Advanced Functional Materials, Volume 36, Issue 13, 12 February 2026.
An innovative combination of size‐controlled template synthesis, partial cation exchange reactions, and dual shell passivation offers a new class of RoHS‐compliant, heavy metal‐free Cu‐Zn‐In‐Se/ZnS/Al2O3 core/shell/shell quantum dots (QDs), exhibiting long‐range tunability, highly efficient SWIR emission with remarkably narrow photoluminescence ...
Avijit Saha, Morena Cervino, Hossein Roshan, René Hübner, Angelika Wrzesińska‐Lashkova, Christine Steinbach, Yana Vaynzof, Francesco Di Stasio, Vladimir Lesnyak   +8 more
wiley   +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

Spatially‐Controlled Planar Guided Crystallization of Low‐Loss Phase Change Materials for Programmable Photonics

Advanced Materials, Volume 38, Issue 8, 6 February 2026.
The concept of spatially‐controlled planar guided crystallization is a novel method for programming the growth of optically homogeneous low‐loss Sb2S3 phase‐change material (PCM), leveraging the directional crystallization within confined channels.
Fouad Bentata, Arnaud Taute, Capucine Laprais, Régis Orobtchouk, Eva Kempf, Alban Gassenq, Yves Pipon, Michele Calvo, Valérie Martinez, Stéphane Monfray, Guillaume Saint‐Girons, Nicolas Baboux, Hai Son Nguyen, Xavier Letartre, Lotfi Berguiga, Patrice Genevet, Sébastien Cueff   +16 more
wiley   +1 more source

Heterogeneously-integrated lasers on thin film lithium niobate. [PDF]

Nanophotonics
Li M, Xiang C, Guo J, Peters J, Dumont M, Xue S, Staffa J, Hu Q, Gao Z, Lin Q, Bowers JE.   +10 more
europepmc   +1 more source

Circularly Polarized Polariton Lasing from Spin‐Momentum Locking in Deformed Plasmonic Kagome Cavities

Advanced Materials, Volume 38, Issue 9, 12 February 2026.
This paper describes room‐temperature polariton lasing with high circular polarization from deformed plasmonic Kagome lattice cavities strongly coupled to colloidal CdSe nanoplatelets. Spin‐selectivity from cavity modes resulted in control over the handedness of circular polarization as well as the direction of polariton lasing, opening prospects for ...
Zhaoyun Zheng, Chuchuan Hong, Siamak Khorasani, Shreya K. Patel, Marc R. Bourgeois, David J. Masiello, Teri W. Odom   +6 more
wiley   +1 more source

High external power narrow bandwidth erbium doped waveguide laser on thin film lithium niobate. [PDF]

Nanophotonics
Ma Y, Li M, Yu J, Fang Z, Wang M, Lin J, Zhang H, Cheng Y.   +7 more
europepmc   +1 more source