Publications by authors named "Thomas Edward Darcie"
Low-temperature (LT) grown GaAs has a subpicosecond carrier response time that makes it favorable for terahertz photoconductive (PC) switching. However, this is obtained at the price of lower mobility and lower thermal conductivity than GaAs. Here we demonstrate subpicosecond carrier sweep-out and over an order of magnitude higher sensitivity in detection from a GaAs-based PC switch by using a nanoplasmonic structure.
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- * A theoretical analysis reveals the absorption coefficient of the slot-line in a homogeneous medium, showing its effectiveness as a terahertz transmission line with specific absorption rates.
- * Full-wave numerical simulations utilizing the Finite Element Method (FEM) are used to confirm our theoretical findings, demonstrating the potential of both types of slot-lines for efficient terahertz wave transmission.
Article Synopsis
- This paper investigates how photoexcitation in a single-walled carbon nanotube (SWNT) device affects its output power in THz photoconductive switching and photomixing.
- It presents a comprehensive method for calculating THz output power, taking into account various parameters that impact device performance and establishing design-dependent limits.
- Numerical analysis indicates that, provided the device remains thermally stable, the SWNT photoconductive switch can achieve output power improvements nearly 100 times greater than traditional materials like LT-GaAs.