Results 221 to 230 of about 10,174 (239)

Target interception in virtual reality is better for natural versus unnatural trajectory shapes and orientations. [PDF]

J Vis
Varon S, Babin K, Spering M, Culham JC.
europepmc   +1 more source

Supercritical Angle Fluorescence and Raman Techniques in Biophotonics

Laser &Photonics Reviews, EarlyView.
Supercritical angle fluorescence (SAF) microscopy and supercritical angle Raman (SAR) spectroscopy have emerged as powerful tools in the field of biophotonics, enabling high‐resolution imaging and spectroscopy of biological specimens near interfaces. This review article provides a comprehensive overview of the principles, techniques, applications, and ...
Subir Das, Nathalia Simea Münch, Stefan Seeger   +2 more
wiley   +1 more source

Breaking Kasha's Rule to Enable Higher Reactivity in Photoredox Catalysis. [PDF]

J Am Chem Soc
Pfund B, Wenger OS.
europepmc   +1 more source

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

High-energy ion beams generated with high efficiency using laser-driven 3D microstructures. [PDF]

Sci Rep
Tochitsky S, Lemos N, Simpson R, Grace E, Pak A, Ma T, Luoma J, Fiuza F, Haberberger D, Haid A, Knolker K, Joshi C.   +11 more
europepmc   +1 more source

Deterministic Fiber‐Optic Spectral Engineering Enables Three‐Color Multiplexed Two‐Photon Microscopy

Laser &Photonics Reviews, EarlyView.
A simulation‐guided spectral‐engineering framework maps the nonlinear parameter space of a fiber laser platform to identify balanced three‐band excitation states. The resulting 960, 1080, and 1175 nm femtosecond pulses deliver nJ‐level energies for low‐cross‐talk chromatically multiplexed two‐photon microscopy.
Marvin Edelmann, Andreu Matamoros‐Angles, Mohsin Shafiq, Mikhail Pergament, Franz X. Kärtner, Markus Glatzel   +5 more
wiley   +1 more source

Dyadic Dynamic in Generalized Political Attitudes: Homophily, Relationship Satisfaction, and Convergence. [PDF]

Int Rev Soc Psychol
Miculka A, Imhoff R.
europepmc   +1 more source

Giant Phonon‐Enhanced Terahertz Electro‐Optic Response in Ferroelectric van der Waals NbOX2 (X = Br, I)

Laser &Photonics Reviews, EarlyView.
Van der Waals ferroelectric NbOX2 thin films exhibit phonon‐resonance enhanced electro‐optic responses, 332 pm/V at 3.1 THz (NbOI2) and 192 pm/V at 3.7 THz (NbOBr2), the highest among vdW materials, and show 4% non‐resonant SHG modulation together with resonant phonon‐enhancement under a 150 kV/cm THz pump.
Baolong Zhang, Ruihuan Duan, Zheng Liu, Ranjan Singh   +3 more
wiley   +1 more source

High efficiency of laser energy conversion with cavity pressure acceleration. [PDF]

Sci Rep
Chodukowski T, Borodziuk S, Tchórz P, Rosiński M, Rusiniak Z, Dudzak R, Krupka M, Cikhardt J, Burian T, Singh S, Szymanski M, Marchenko A, Kustosz M, Agarwal S, Krasa J, Swierczynski R, Pokorska J, Pisarczyk T, Klir D, Skala J, Dostal J, Krus M, Juha L.   +22 more
europepmc   +1 more source

Failure Investigation of Alloy 625 Sockolets After Prolonged Service in an Ammonia Cracker Unit

Materials and Corrosion, EarlyView.
The failure of the sockolets was caused by intergranular cracking and fracture. The thick and highly brittle nitrided layer formed intergranular surface cracks, which propagated along grain boundaries into the base alloy substrate due to the presence of brittle Cr‐rich carbides. ABSTRACT Several sockolets of Alloy 625 operating at 540°C in contact with
Kamlesh Chandra, N. Naveen Kumar, Niraj Kumar   +2 more
wiley   +1 more source