Results 61 to 70 of about 525,806 (272)
Advanced Materials Technologies, EarlyView.A dyed nylon fiber is implemented inside the scattering phantom and skin tissue. The deep‐tissue light generation via whispering gallery mode lasing is demonstrated, achieving a depth of >50 times transport mean free path in scattering phantom and 3 mm beneath skin.
Dongqin Ni +4 more
wiley +1 more source
Photonics, 2021 We report a high power, narrow linewidth fiber laser based on oscillator one-stage power amplification configuration. A fiber oscillator with a center wavelength of 1080 nm is used as the seed, which is based on a high reflection fiber Bragg grating (FBG)
Xin Tian +6 more
doaj +1 more source
Advanced Optical Materials, EarlyView.Comparing Fabry–Perot and plasmonic nanorod cavities reveals how the number of dark states dictates polariton relaxation. The high number of dark states results in a polaritonic bottleneck, while reducing the number of dark states enables to measure the polaritonic decay.
Nicola Peruffo +5 more
wiley +1 more source
PULSED KGd(WO4)2 RAMAN LASER: TOWARDS EMISSION LINEWIDTH NARROWING
Приборы и методы измерений, 2015 The linewidth of a KGd(WO4)2 pulsed Raman laser is analysed experimentally for different configurations of the Raman and pump resonators: with narrow and broadband pump emission profiles, with and without linewidth narrowing elements in the Raman laser ...
V. G. Savitski
doaj
Narrow-linewidth optical frequency comb reference to a fiber delay line
, 2020 In this letter, we derive a fully-stabilized narrow-linewidth optical frequency comb (OFC) reference to a kilometer-long fiber delay line for the first time, to the best of our knowledge. The 1537-nm comb modes and 1566-nm comb modes in the OFC are phase-
Youjian Song (3959699) +6 more
core +1 more source
On‐Chip Photonic Neural Network Architectures
Advanced Optical Materials, EarlyView.This review presents a comprehensive overview of on‐chip photonic neural network architectures, covering key photonic building blocks, representative network types, and emerging applications. Recent advances, implementation challenges, and future directions are examined, highlighting the potential of integrated photonics to enable ultrafast, energy ...
Seokjin Hong +7 more
wiley +1 more source
Enhancement of Circular Dichroism in Chiral Dielectric Metasurfaces by Ion Beam Irradiation
Advanced Optical Materials, EarlyView.Ion beam irradiation enables post fabrication tuning of dissipative losses in chiral dielectric metasurfaces composed of C4 symmetric silicon nanostructures. By tailoring the absorption toward critical coupling condition, circular dichroism is enhanced from 0.70 to 0.85, demonstrating a versatile route for maximizing optical chirality and polarization ...
Anna Fitriana +6 more
wiley +1 more source
Pump-induced stimulated superradiant Smith-Purcell radiation with ultra-narrow linewidth
eLightLasers with the gain medium of gas, liquid, semiconductor, and solid could generate coherent light with rather narrow spectral linewidth, which play an important role in the fields of communication, measurement, sensing, and so on. Although free electron
Yuechai Lin +10 more
doaj +1 more source
IEEE Photonics JournalThe output power of fiber lasers with narrow-linewidth is typically limited by stimulated Brillouin scattering (SBS). Spectral broadening via phase modulation is preferred to suppress SBS, but its capability approaches the limit for a given linewidth and
Mengqi Zhang +8 more
doaj +1 more source
Advanced Optical Materials, EarlyView.The importance of photovoltaics (PV) and optoelectronics based on new Earth‐abundant materials is increasing with the ever‐growing energy demand and the need to address it with sustainable material technology. The paper demonstrates good quality magnetron sputter epitaxy of the inexpensive and eco‐friendly semiconductor MgSnN2 for green gap ...
D. Gogova +13 more
wiley +1 more source