Terahertz Generation and Detection through Gain-Enhanced Interband Photomixing in Quantum Well Structures

[2411.12046] Terahertz Generation and Detection through Gain-Enhanced Interband Photomixing in Quantum Well Structures Skip to main content Search Submit Donate Log in Search arXiv Press Enter to search · Advanced search Physics > Optics arXiv:2411.12046 (physics) [Submitted on 18 Nov 2024 ( v1 ), last revised 10 Apr 2026 (this version, v3)] Title: Terahertz Generation and Detection through Gain-Enhanced Interband Photomixing in Quantum Well Structures Authors: Yifan Zhao , Shahed-E- Zumrat , Szu-An Tsao , Mona Jarrahi View a PDF of the paper titled Terahertz Generation and Detection through Gain-Enhanced Interband Photomixing in Quantum Well Structures, by Yifan Zhao and 3 other authors View PDF Abstract: Terahertz waves hold immense potential across diverse fields, including healthcare monitoring, biomedical imaging, precision navigation, high-speed communication, security screening, industrial quality control, and space exploration. However, the widespread adoption of terahertz technology has been hindered by the bulky, complex, and costly nature of existing systems. Here, we demonstrate gain-enhanced interband photomixing in quantum well (QW) PIN photodiodes as an efficient mechanism for frequency-tunable terahertz generation and detection, achieving significant improvements in power efficiency and sensitivity over the state-of-the-art. QWs embedded in PIN photodiodes - key elements of commercially available photonic integrated circuits (PICs) - enable monolithic integration of lasers, semiconductor optical amplifiers (SOAs), modulators, filters, demultiplexers, and other passive optical components. By establishing QW PIN photodiodes as the foundation of a Monolithically Integrated Terahertz Optoelectronic (MITO) platform, this work paves the way for compact, scalable terahertz optoelectronic systems with applications in high-speed data transfer, spectroscopy, and hyperspectral imaging. This advancement positions terahertz technology for widespread use, facilitating practical applications across remote sensing, communications, and medical diagnostics within portable devices. Comments: 63 pages, 21 Figures, 1 Table Subjects: Optics (physics.optics) ; Applied Physics (physics.app-ph) Cite as: arXiv:2411.12046 [physics.optics] (or arXiv:2411.12046v3 [physics.optics] for this version) https://doi.org/10.48550/arXiv.2411.12046 Focus to learn more arXiv-issued DOI via DataCite Journal reference: Nature Communications (2026) Related DOI : https://doi.org/10.1038/s41467-026-73080-6 Focus to learn more DOI(s) linking to related resources Submission history From: Mona Jarrahi [ view email ] [v1] Mon, 18 Nov 2024 20:32:55 UTC (3,612 KB) [v2] Mon, 7 Apr 2025 04:54:10 UTC (3,680 KB) [v3] Fri, 10 Apr 2026 07:40:50 UTC (4,679 KB) Full-text links: Access Paper: View a PDF of the paper titled Terahertz Generation and Detection through Gain-Enhanced Interband Photomixing in Quantum Well Structures, by Yifan Zhao and 3 other authors View PDF view license Current browse context: physics.optics < prev | next > new | recent | 2024-11 Change to browse by: physics physics.app-ph References & Citations NASA ADS Google Scholar Semantic Scholar export BibTeX citation Loading... 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