Results 171 to 180 of about 2,372 (260)

Hyperparametric solitons in nondegenerate optical parametric oscillators. [PDF]

Nat Commun
Weng H, Ji X, Ali M, Krock EH, Wang L, Kumar V, Guo W, Wan Q, Kippenberg TJ, Donegan JF, Skryabin DV.   +10 more
europepmc   +1 more source

A New Lidar‐Based Observational Estimate for a Short‐Term Longwave High‐Cloud Feedback

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 15, 16 August 2026.
Abstract High clouds play a substantial role in modulating the Earth's top‐of‐atmosphere radiative energy budget. Models project that changes in high‐cloud altitude and area in response to warming will have a net warming effect within the tropics. Yet, to our knowledge, a robust global observational constraint of a short‐term cloud feedback associated ...
J. A. Pilewskie, G. Cesana, A. Arouf, T. Vaillant de Guélis   +3 more
wiley   +1 more source

Integrated tunable green light source on silicon nitride. [PDF]

Light Sci Appl
Wang G, Yakar O, Ji X, Clementi M, Zhou J, Lafforgue C, Wu J, Hu J, Kippenberg TJ, Brès CS.   +9 more
europepmc   +1 more source

Ultrasound Participated Optomechanical Frequency Comb Generation and Tunability in High‐Q Microbubble Cavities

Nanophotonics, Volume 15, Issue 15, 13 August 2026.
Optomechanical frequency combs are generated in high‐Q microbubble cavities by simultaneous ultrasound and laser excitation, arising from nonlinear coupling between optomechanical modes and ultrasonically driven mechanical oscillations. Comb spacing and intensity are tunable through acoustic and optical parameters, whereas the optical spring effect ...
Yuxing Zhang, Xing Niu, Hailin Chen, Sheng Liu, Lei Xu, Liying Liu   +5 more
wiley   +1 more source

Broadband comb spectroscopy through spectral envelope shaping. [PDF]

Nat Commun
Heckelmann I, Pinto D, Schmitt U, Beck M, Faist J.   +4 more
europepmc   +1 more source

Compact Fourier‐Transform Spectrometer on Thin‐Film Lithium Niobate via Mode‐Circulating Modulation

Advanced Photonics Research, Volume 7, Issue 8, August 2026.
Schematic diagram of the proposed compact on‐chip Fourier‐transform spectrometer on thin‐film lithium niobate that exploits mode‐circulating electro‐optic modulation, in which guided light is sequentially converted among multiple spatial modes to accumulate multiple phase modulation events within a single physical modulation arm.
Hao Yao, Jiayao Deng, Yuzhe Sun, Hao Zhang, Yinglu Zhang, Mengke Wang, Jieyun Wu, Kaixin Chen   +7 more
wiley   +1 more source

Superefficient optical frequency division referenced to μHz Schawlow-Townes-linewidth quantum noise-limited lasers. [PDF]

Sci Adv
Hu J, Xiao Y, Yang H, Xue S, Dong W, Zhai K, Zhu S, Qiu K, Zhang S, Ge J, Zhu NH, Jiang X, Xu J, Wen H, Zhou H.   +14 more
europepmc   +1 more source

Cteno‐Bot: An Untethered Metachronally Swimming Robot With Magnetoactive Propulsors

Advanced Intelligent Systems, Volume 8, Issue 8, August 2026.
We present Cteno‐bot, an untethered ctenophore‐inspired robot which swims using metachronally coordinated appendages. A single mechanism controls up to 216 magnetoactive propulsors via a dynamically varying magnetic field. We show that the swimming speed of the robot can be increased without a corresponding increase in power requirement, simply by ...
David J. Peterman, Margaret L. Byron
wiley   +1 more source

Frequency-comb enabled spectrum-correlation reflectometry for distributed fiber-optic sensing. [PDF]

Light Sci Appl
Lin Z, Zhao Z, He H, Chen C, Tang M, Soto MA.   +5 more
europepmc   +1 more source

Trait‐Based Drivers of Host Specificity in Freshwater Mussel–Fish Parasitic Interactions

Ecology and Evolution, Volume 16, Issue 8, August 2026.
Freshwater mussels (Unionidae) rely on an obligate parasitic larval stage on fish hosts, yet their host specificity remains poorly understood in a broader ecological and evolutionary context. By integrating phylogenetic, life‐history, and host‐use data, we show that host phylogenetic specificity is conserved but varies systematically with mussel life ...
Irene Sánchez González, Andrew W. Park, Krista A. Capps   +2 more
wiley   +1 more source