Results 71 to 80 of about 1,856 (216)
Art. 1200407, 7 S.Quantum cascade lasers (QCLs) are essential components for mid-infrared optical spectroscopy. Currently, widely tunable QCLs are using an external diffraction grating to tune the laser wavelength.
Radosavljevic, Sanja +6 more
core +2 more sources
The dual Fabry–Perot interferometer (DFPI) with functionally separated cavities enables simultaneous RGB peak alignment and spectral rebalancing without subpixel patterning. Multi resonance generation and fine spectral tuning are independently controlled, enhancing the color purity.
Keun Soo Shin, Ki Won Jeong, Yun Seon Do
wiley +1 more source
Recent Developments in Deep‐Ultraviolet Flat Optics
Deep‐ultraviolet flat optics (DUVFO) is emerging as a key platform for next‐generation photonics, enabling advanced functionalities beyond conventional DUV optics. This review outlines materials, devices, and system advances, highlighting wide‐bandgap platforms, while identifying key challenges in dispersion control, characterization, and wafer‐scale ...
Omar A. M. Abdelraouf +2 more
wiley +1 more source
Distributed Bragg Reflector (DBR) lasers have emerged as versatile and indispensable tools across various domains. Their advantages, including high signal-to-noise ratios, narrow linewidths, and support for distributed sensing, enable them to excel in diverse applications. DBR lasers have revolutionized optical fiber communication, medical diagnostics,
openaire +1 more source
Tamm Plasmon Resonance Responsiveness to SARS‐CoV‐2 Virus‐Like Particles
This work presents a Tamm plasmon device combining a SiO2/TiO2 Bragg reflector and nanostructured silver to detect SARS‐CoV‐2 virus‐like particles through resonance attenuation captured by a displacement angle. Optical characterizations, controls experiments, and mechanistic insights highlight structure‐dependent interactions, and suggest applications ...
Andrea Rossini +5 more
wiley +1 more source
Monolithic distributed Bragg reflector cavities in Al2O3 with quality factors exceeding one million [PDF]
Monolithic distributed Bragg reflector (DBR) cavities with quality factors exceeding one million have been realized in aluminum oxide channel waveguides.
Bernhardi, Edward +4 more
core
Three-dimensional (3D) backside reflector, compared with flat reflectors, can improve the probability of finding the escape cone for reflecting lights and thus enhance the light-extraction efficiency (LEE) for GaN-based light-emitting diode (LED) chips ...
Huamao Huang, Jinyong Hu, Hong Wang
doaj +1 more source
This perspective surveys emerging quantum and classical photonic applications across operating wavelengths and timescales, highlighting persistent technological gaps in integrated light sources. We examine the unique advantages of quadratic nonlinear photonics on the thin‐film lithium niobate (TFLN) platform and discuss strategies for realizing ...
Meng Tian +7 more
wiley +1 more source
Self-aligned Coupled Waveguide Distributed Bragg Reflector Lasers
A novel self-aligned coupled waveguide (SACW) multi-quantum-well (MQW) distributed Bragg reflector (DBR) laser is proposed and demonstrated for the first time.
Zhu Hongliang +6 more
core
Cephalopod‐inspired photonic microparticles with dynamic structural coloration are fabricated via confined self‐assembly of linear block copolymers into ellipsoids containing stacked lamellae. Embedded superparamagnetic nanoparticles enable rapid magnetic alignment, restoring vivid, angle‐dependent color.
Gianluca Mazzotta +8 more
wiley +1 more source

