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Article
Open AccessDynamics of self-hybridized exciton–polaritons in 2D halide perovskites
Excitons, bound electron–hole pairs, in two-dimensional hybrid organic inorganic perovskites (2D HOIPs) are capable of forming hybrid light-matter states known as exciton-polaritons (E–Ps) when the excitonic m...
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Article
Open AccessFabrication of p-type 2D single-crystalline transistor arrays with Fermi-level-tuned van der Waals semimetal electrodes
High-performance p-type two-dimensional (2D) transistors are fundamental for 2D nanoelectronics. However, the lack of a reliable method for creating high-quality, large-scale p-type 2D semiconductors and a suitab...
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Article
Open AccessDirect nano-imaging of light-matter interactions in nanoscale excitonic emitters
Strong light-matter interactions in localized nano-emitters placed near metallic mirrors have been widely reported via spectroscopic studies in the optical far-field. Here, we report a near-field nano-spectros...
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Article
Light–matter coupling in large-area van der Waals superlattices
Two-dimensional (2D) crystals have renewed opportunities in design and assembly of artificial lattices without the constraints of epitaxy. However, the lack of thickness control in exfoliated van der Waals (vd...
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Article
Critical Loads of Acidity to Protect and Restore Acid-Sensitive Streams in Virginia and West Virginia
The purpose of the research described here is to apply a new approach for generating aquatic critical load (CL) and exceedance calculations for an important acid-sensitive region of the eastern USA. A widespre...
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Article
Holocene climate change and landscape development from a low-Arctic tundra lake in the western Hudson Bay region of Manitoba, Canada
The low-Arctic region of western Hudson Bay in interior Canada is one of the most poorly described areas of North America in terms of Holocene climate history. Here, we present new data from a well-dated lake ...
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Article
Practical mm-Wave pHEMT Frequency Multiplier
Details on a broadband MMIC frequency doubler targeting the MVDS market are presented. The design evolution from an individual pHEMT device to the complete practical doubler realisation is discussed. The doubl...
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Article
Low Noise mm-Wave Amplifier Design Methodology
A design methodology for mm-wave LNAs is presented. The optimum bias point selection is outlined. The stabilisation strategy is described, and the impact of packaging requirements on the amplifier design is di...
