InAlAs/InGaAs-MSM photodetectors based on optical cavity using metallic mirrors: THz frequency operation, high quantum efficiency and high saturation current

Billet, Maximilien; Bretin, Sara; Bavedila, F.; Avramovic, Vanessa; Wallart, X.; Coinon, C.; Lampin, Jean‐François; Ducournau, Guillaume; Peytavit, E.

doi:10.1063/1.5092283

Cited by 6 publications

(3 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Furthermore, the use of metallic gratings functions as low-electrical-resistance electrodes, in which case the electrical bandwidth is determined merely by the parasitic capacitance of the PD. Although we employ standard pin PD in this work for proof-of-concept demonstration, sub-wavelength stripe-antenna-based PDs based on hot electrons [35,36] or metal-semiconductor-metal (MSM) photodetectors [37] with plasmonic resonances can also be used to shrink the PDs to nanometer scale to realize ultra-low-capacitance high-speed receivers. Design and characterization of Au wire-grid polarizer.…”

Section: Resultsmentioning

confidence: 99%

“…The surface-normal configuration of the demonstrated coherent receiver enables natural extension to a large-scale 2D array to receive highly parallelized coherent signals in a minimal footprint. While we employed a conventional InGaAs-based pin PD structure for detection in this work, a more compact and lower-capacitance structure could also be used − to further enhance the spatial density and the electrical bandwidth. Moreover, our device concept is applicable to other material platforms as well, such as germanium-based PDs integrated on silicon to realize a complementary metal-oxide-semiconductor (CMOS) compatible low-cost surface-normal coherent receiver array.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Ultra-Broadband Surface-Normal Coherent Optical Receiver with Nanometallic Polarizers

et al. 2022

View full text Add to dashboard Cite

A coherent receiver that can demodulate high-speed in-phase and quadrature signals of light is an essential component for optical communication, interconnects, imaging, and computing.Conventional waveguide-based coherent receivers, however, exhibit large footprints, difficulty in coupling a large number of spatial channels efficiently, and limited operating bandwidth imposed by the waveguide-based optical hybrid. Here, we present a surface-normal coherent receiver with nanometallic-grating-based polarizers integrated directly on top of photodetectors without the need for an optical hybrid circuit. Using a fabricated device with the active section occupying a 70-μm-

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Ultra-Broadband Surface-Normal Coherent Optical Receiver with Nanometallic Polarizers

et al. 2022

View full text Add to dashboard Cite

show abstract

“…In pursuit of this goal, we adopted a judicious approach known as the Hydrodynamic model. This model offers a balanced compromise between the drift-diffusion model, known for its simplifications, and the computationally intensive Monte Carlo method, which demands substantial computational resources [20,21].…”

Section: Research Proceduresmentioning

confidence: 99%

Optimizing Terahertz Signal Detection in High Electron Mobility Transistors: Insights from Plasma Resonance Studies

Mahi,

Arbaoui,

Tadjeddine

et al. 2024

J. Nano- Electron. Phys.

View full text Add to dashboard Cite

This analytical modeling study delves into the resonance behavior of plasma waves within the channel of High Electron Mobility Transistors (HEMTs) when subjected to Terahertz (THz) excitation. The core objective is to systematically examine the influence of various HEMT parameters on the dynamics of plasma resonance and the detection of THz signals. A noteworthy finding emerges: the most effective detection of THz signals materializes when both the gate and drain terminals simultaneously receive the THz excitation. Moreover, the modulation of biasing conditions, specifically represented by polarization voltages, exerts a substantial influence on plasma resonance frequencies, offering a promising avenue for tailoring HEMT responses. Further exploration reveals the substantial impact of access region characteristics, including length and doping concentration, on the excitation of 3D plasma waves within the HEMT, with the drain access region demonstrating particular significance. Additionally, we delve into the ramifications of gate geometry, encompassing width and channel-to-gate distance, revealing their capacity to significantly alter 2D plasma resonance frequencies. In extreme cases, the HEMT exhibits behavior akin to a simplified diode configuration, resulting in the absence of 2D plasma resonance. In summation, this research unfolds essential insights for the design and optimization of HEMT-based devices tailored to specific THz frequency applications. It underscores the pivotal roles of biasing conditions, access region properties, and gate geometries in shaping HEMT performance and THz signal detection.

show abstract

The analysis of the capacitance of p-InAlAs/i-InGaAs/n-InAlAs infrared photodetector

Yang

Chen

2021

Opt Quant Electron

View full text Add to dashboard Cite

InAlAs/InGaAs-MSM photodetectors based on optical cavity using metallic mirrors: THz frequency operation, high quantum efficiency and high saturation current

Cited by 6 publications

References 29 publications

Ultra-Broadband Surface-Normal Coherent Optical Receiver with Nanometallic Polarizers

Ultra-Broadband Surface-Normal Coherent Optical Receiver with Nanometallic Polarizers

Optimizing Terahertz Signal Detection in High Electron Mobility Transistors: Insights from Plasma Resonance Studies

The analysis of the capacitance of p-InAlAs/i-InGaAs/n-InAlAs infrared photodetector

Contact Info

Product

Resources

About