Results 201 to 210 of about 1,699,778 (381)

Progress and Prospects of Persistent Luminescent Nanocrystals in Biomedical Applications

open access: yesAdvanced Optical Materials, EarlyView.
This review summarizes recent progress in materials‐level control of persistent luminescence, including mechanistic understanding, wavelength/intensity tuning, and activation strategies, as well as emerging biomedical applications in imaging, biosensing, cell tracking, optogenetic stimulation, and biophotochemical activation.
Peng Pei   +5 more
wiley   +1 more source

Ultrabroadband Excitation of Hot Carriers in Plasmonic Nanorods Revealed by Two‐Dimensional Electronic Spectroscopy

open access: yesAdvanced Optical Materials, EarlyView.
This work dissects the ultrafast response of polydisperse plasmonic nanorods using two‐dimensional electronic spectroscopy, uniquely combining temporal and spectral resolution. Our ultrabroadband pulses cover both transverse and longitudinal nanorods’ resonances, revealing sub‐200‐fs dynamics and distinct broadening mechanisms.
Andrea Schirato   +8 more
wiley   +1 more source

Infrared Colloidal Quantum Dot Edge Emitting Lasers Integrated on Silicon

open access: yesAdvanced Optical Materials, EarlyView.
In this work, the first monolithic integration of Pb‐chalcogenide CQDs in an edge‐emitting DFB laser cavity onto a Si/SiO2 substrate has been demonstrated. The optimizations of SiO2 layer thickness, engineering of the grating duty cycle, and implementing λ/4 phase shift resulted in the achievement of spectrally pure, single‐mode lasing at 1650 nm with ...
Hamed Dehghanpour Baruj   +5 more
wiley   +1 more source

White Light Generation From YAG:Ce‐Doped Phosphate Glass‐Based Composite Fibers

open access: yesAdvanced Optical Materials, EarlyView.
The first white‐light‐emitting composite fiber based on YAG:Ce3+ phosphors in phosphate glass is developed. The glass composition is custom‐engineered to enhance thermal stability and to match YAG:Ce3+ refractive index, ensuring composite transparency.
Khaldoon Nasser   +9 more
wiley   +1 more source

Decoherence Sturdy Memories in the Presence of Quantum Dissipation [PDF]

open access: green, 2002
K. M. Fonseca-Romero   +2 more
openalex   +1 more source

Effect of Host Anisotropy on Phosphorescent Emitter Orientation and Light Outcoupling in OLEDs

open access: yesAdvanced Optical Materials, EarlyView.
The orientation of the emissive transition dipole moment of a cage‐type Iridium complex can be tuned by the anisotropic alignment of the cohost material, which is expressed as the S$S$ parameter of the film. Thus, the external quantum efficiency of OLEDs can be further enhanced to reach values above 30%.
Bình‐Minh Nguyễn   +5 more
wiley   +1 more source

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