Results 191 to 200 of about 11,417 (288)

Multimode Phonon Lasing via Self‐Induced Optical Coherent Pumping

Laser &Photonics Reviews, EarlyView.
A silicon optomechanical nanobeam generates self‐sustained phonon lasing in multiple competing mechanical modes via self‐pulsing, an intrinsic optical modulation arising from cavity nonlinearity. This self‐organized mechanism enables robust multi‐frequency operation spanning periodic, quasi‐periodic, and chaotic regimes without external modulation. The
David Alonso Tomás, Carlos Mas Arabí, Carles Milián, Néstor E. Capuj, Alejandro Martínez, Daniel Navarro Urrios   +5 more
wiley   +1 more source

Soft Ferroelectrics in One Dimension: Ferroelectric Columnar Liquid Crystals. [PDF]

Chempluschem
Park S, Cho BK.
europepmc   +1 more source

Frontiers of Bright CEP‐Stable Broadband Infrared Sources

Laser &Photonics Reviews, EarlyView.
Bright CEP‐stable broadband infrared sources push the limits of ultrafast science by delivering exceptional brightness alongside few‐cycle durations and multi‐octave spectral coverage. This review highlights emerging architectures and nonlinear conversion strategies that scale power while preserving phase stability.
Ugaitz Elu, Jens Biegert
wiley   +1 more source

Research Progress of Passively Mode-Locked Fiber Lasers Based on Saturable Absorbers. [PDF]

Nanomaterials (Basel)
Xie J, Liu T, Liu X, Wang F, Liu W.
europepmc   +1 more source

Theory of Supercritical Coupling and Generalized Bound States in the Continuum

Laser &Photonics Reviews, EarlyView.
We develop a general theory of supercritical coupling and generalized bound states in the continuum (gBICs), revealing how interference between radiative and absorptive channels enables quality factors beyond conventional material‐loss limits. The framework unifies non‐Hermitian mode coupling, causality‐driven reactive interactions, and interference ...
Sergio Balestrieri, Bruno Miranda, Silvia Romano, Gianluigi Zito   +3 more
wiley   +1 more source

Rate of Mechanical Symptom Resolution at 2-Year Follow-up After Hip Arthroscopy. [PDF]

Orthop J Sports Med
Poutre RL, Woodrow JG, Allen BJ, Earla RP, Mun JS, Chenna SS, Gillinov SM, Siddiq BS, Martin SD.   +8 more
europepmc   +1 more source

Harnessing Optical Limiting in Saturable Absorbers for Reconfigurable Spectral Engineering of Ultrafast Fiber Lasers

Laser &Photonics Reviews, EarlyView.
Optical limiting in a nanomaterial‐polymer saturable absorber is harnessed as a functional intracavity degree of freedom, where pump‐controlled photothermal loss continuously reshapes the gain spectrum of rare‐earth ions, enabling non‐mechanical spectral engineering in an ultrafast fiber laser.
Maolin Dai, Weitao Wang, Masahiro Nomura, Sze Yun Set, Shinji Yamashita   +4 more
wiley   +1 more source

Self-locked broadband Raman-electro-optic microcomb. [PDF]

Nat Commun
Wan S, Wang PY, Li M, Ma R, Niu R, Sun FW, Bo F, Guo GC, Dong CH.   +8 more
europepmc   +1 more source

First 20 Years of Orbitrap Mass Spectrometry as the Mainstream Analytical Technique

Mass Spectrometry Reviews, EarlyView.
ABSTRACT This review traces the first 20 years of Orbitrap mass spectrometry as a mainstream high‑resolution and accurate‑mass (HR/AM) technology. It outlines the historical development of the Orbitrap analyzer, the evolution of major instrument families, and the key technological innovations that enabled its widespread adoption. Particular emphasis is
Alexander Makarov
wiley   +1 more source

A green solvent processable, self‐doped N‐annulated perylene butyl tetraester applied as a solar cell cathode interlayer

Polymer International, EarlyView.
A new organic molecular cathode interlayer is presented built upon the perylene butyl tetraester scaffold. The new molecule incorporates N‐annulation and a functional amine group to control optical, electrochemical and physical properties and delivers excellent solar cell performance. Abstract We report a new amino‐bay‐substituted, N‐annulated perylene
Kathryn M Wolfe, Shahidul Alam, Zachary T Gardner, Biswajit Pal, Alexander Harrison, Frédéric Laquai, Chad Risko, Gregory C Welch   +7 more
wiley   +1 more source