Results 31 to 40 of about 16,866 (296)
Plasmonic quantum cascade laser antenna [PDF]
2007 Quantum Electronics and Laser Science Conference, 2007 We demonstrate the plasmonic quantum cascade laser antenna, that can confine mid- infrared radiation beyond the diffraction limit, by integrating gold optical antennas on the laser facet.
Nanfang Yu +4 more
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Superlattice Structure of Quantum Cascade Lasers: Structural and Morphological Effects of AsH₃ Flow
Cumhuriyet Science JournalThe quantum cascade lasers (QCLs) have been widely used in mid-infrared applications due to their high power, efficiency, and design flexibility. The InP-based quantum cascade lasers, particularly those utilizing In 0.53 Ga 0.47 As/In0.52Al0.48As ...
Merve Nur Koçak, İlkay Demir
doaj +1 more source
Demonstration of an All‐Optical AND Gate Mediated by Photochromic Molecules
Advanced Functional Materials, EarlyView.A logic AND gate that runs on photons is demonstrated. It relies on two spatially separated photochromic molecules that work in tandem. Abstract The realization of a photonic logic AND gate, i.e. a logic AND gate that runs on photons rather than electrons, and where all steps are controlled by light, is demonstrated. In a proof‐of‐principle experiment,
Heyou Zhang +7 more
wiley +1 more source
Millimeter wave photonics with terahertz semiconductor lasers
Nature Communications, 2021 Photonic solutions for generating free space millimeter radiation is a fast developing field that combines optoelectronics and RF domains but has many challenges.
Valentino Pistore +12 more
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Advanced Functional Materials, EarlyView.Herein presented supraparticles combine the nanoparticulate photocatalyst graphitic carbon nitride with the enzyme horseradish peroxidase, which is immobilized on silica nanoparticles. In an optimized compatibility range, both catalysts operate effectively within the hybrid supraparticles and catalyze a cascade reaction consisting of the photocatalytic
Bettina Herbig +11 more
wiley +1 more source
Engineering Multi-Section Quantum Cascade Lasers for Broadband Tuning
Photonics, 2016 In an effort to overcome current limitations to electrical tuning of quantum cascade lasers, a strategy is proposed which combines heterogeneous quantum cascade laser gain engineering with sampled grating architectures.
Steven Slivken, Manijeh Razeghi
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Advanced Functional Materials, EarlyView.A bimetallic Mn–Ca nanoreactor (MCC) is developed as a non‐nucleotide STING nanoagonist for cancer metalloimmunotherapy. MCC induces Ca2+ overload and hydroxyl radical generation, resulting in mitochondrial damage and mtDNA release. The released mtDNA cooperates with Mn2+ to robustly activate cGAS–STING signaling.
Xin Wang Mo +7 more
wiley +1 more source
A Sulfur Hexafluoride Sensor Using Quantum Cascade and CO2 Laser-Based Photoacoustic Spectroscopy
Sensors, 2010 The increase in greenhouse gas emissions is a serious environmental problem and has stimulated the scientific community to pay attention to the need for detection and monitoring of gases released into the atmosphere.
Helion Vargas +6 more
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Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics
Advanced Functional Materials, EarlyView.Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha +18 more
wiley +1 more source
Frequency-Comb-Assisted Terahertz Quantum Cascade Laser Spectroscopy
Physical Review X, 2014 We report a metrological-grade THz spectroscopy based on the combination of a THz frequency-comb synthesizer (FCS) and a THz quantum cascade laser (QCL).
S. Bartalini +10 more
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