Results 161 to 170 of about 5,291 (264)

NIR/VIS Dual‐Comb Spectroscopy Comparing High and Low Repetition Rate Regimes

open access: yesLaser &Photonics Reviews, EarlyView.
This work compares dual‐comb spectroscopy at lower and higher repetition rates, emphasizing the inherent trade‐off between spectral and temporal resolution. The 80 MHz system provides high‐resolution spectra suitable for analyzing complex molecular structures, whereas the free‐running 1 GHz platform enables fast measurements for real‐time trace gas ...
Alexander Eber   +6 more
wiley   +1 more source

Resonator-enhanced distributed Bragg reflector lasers. [PDF]

open access: yesLight Sci Appl
Yu D   +7 more
europepmc   +1 more source

Multimode Phonon Lasing via Self‐Induced Optical Coherent Pumping

open access: yesLaser &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   +5 more
wiley   +1 more source

Cu-MOF as a saturable absorber for mode-locking at 2 µm and beyond. [PDF]

open access: yesSci Rep
Ahmad H   +9 more
europepmc   +1 more source

Anisotropy Analysis of Bamboo and Tooth Using 4‐Angle Polarization Micro‐Spectroscopy

open access: yesNano Select, EarlyView.
Super‐resolution via orientation: spatial distribution of specific molecular vibrations are revealed at 1/20 of the diffraction limit. ABSTRACT To investigate the anisotropic properties of biomaterials, two distinct classes are considered as follows: polymer‐based (cellulose in plants) and crystalline‐based (enamel in teeth), each demonstrating ...
Meguya Ryu   +8 more
wiley   +1 more source

Flexible Electronics in Robotics Systems: From Devices to Applications

open access: yesSmartBot, EarlyView.
This review presents the recent advancements in flexible electronics, and provides a systematic review of their integration and application in robotic systems. The review emphasizes the pivotal role flexible electronics plays in the field of intelligent robotics and outlines future development prospects for this promising technology. ABSTRACT The rapid
Xuyang An   +10 more
wiley   +1 more source

Continuous-wave and mode-locked Bi-doped fiber laser at 1.7 μm. [PDF]

open access: yesSci Rep
Roohforouz A   +4 more
europepmc   +1 more source

Woven Eutectic Lamellar Structures Lead to Ultrahigh Strength and Energy Absorption Capacity in Additively Manufactured Lattice Structures

open access: yesSmall Structures, Volume 6, Issue 5, May 2025.
Herein, AlCoCrFeNi2.1 is selected to produce lattice structures by selective laser melting. The as‐printed lattice structures consist of numerous colonies of nanosized eutectic lamellar structures which are bent and interwind with each other to form a woven microstructure. The unique microstructure leads to unprecedented effective metal strength, yield
Zhiyong Ji   +6 more
wiley   +1 more source

Nonlinearity- and Dispersion-Controlled High-Energy All-Fiber Femtosecond Laser System with Peak Power Exceeding 0.5 GW. [PDF]

open access: yesNanomaterials (Basel)
Li F   +10 more
europepmc   +1 more source

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