Conference proceeding
Novel heterostructure MSM photodetectors for gigabit ethernet
PROCEEDINGS OF THE INTERNATIONAL 2003 SBMO/IEEE MTT-S INTERNATIONAL MICROWAVE AND OPTOELECTRONICS CONFERENCE - IMOC 2003, VOLS I AND II, v 1, pp 75-79
01 Jan 2003
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
A key element in the field of sensors for short haul communications is the development of high performance photodetectors. Along this direction, we present here an accurate investigation of photodetectors based on AlCaAs/CaAs heterojunction structures. In these devices the absorption region is in the GaAs layer where is formed, at the interface with AlGaAs, a two-dimensional electron gas (2-DEC). This HMSM (Heterostructure Metal-Semiconductor-Metal) photodetector contains an AlGaAs distributed Bragg reflector for detection at 850nm. The beneficial effect of the two dimensional electron gas (2-DEG) in the GaAs absorption laver is evidenced by comparing samples with and without doping in the AlGaAs layer. We start from properties of the grown structure, and then we investigate the static and dynamic properties. Particularly, photocurrent spectra exhibit a 30nm wide peak at 850nm, while time response measurements give a bandwidth over 30GHz. Combination of very low dark current and capacitance, fast response, wavelength selectivity, and compatibility with high electron mobility transistors makes this device especially suitable for Gigabit Ethernet applications.
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Details
- Title
- Novel heterostructure MSM photodetectors for gigabit ethernet
- Creators
- A Cola - Institute for Microelectronics and MicrosystemsB Nabet - Drexel UniversityX Chen - Drexel University, Electrical and Computer EngineeringF Quaranta - Institute for Microelectronics and MicrosystemsA Cataldo - University of SalentoM Lomascolo - Institute for Microelectronics and MicrosystemsA Taurino - Institute for Microelectronics and MicrosystemsM Currie - United States Naval Research Laboratory
- Publication Details
- PROCEEDINGS OF THE INTERNATIONAL 2003 SBMO/IEEE MTT-S INTERNATIONAL MICROWAVE AND OPTOELECTRONICS CONFERENCE - IMOC 2003, VOLS I AND II, v 1, pp 75-79
- Conference
- INTERNATIONAL 2003 SBMO/IEEE MTT-S INTERNATIONAL MICROWAVE AND OPTOELECTRONICS CONFERENCE - IMOC 2003
- Publisher
- IEEE
- Number of pages
- 5
- Resource Type
- Conference proceeding
- Language
- English
- Academic Unit
- Electrical and Computer Engineering
- Web of Science ID
- WOS:000189409000014
- Other Identifier
- 991019173445304721
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InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Engineering, Electrical & Electronic
- Optics