Abstract
Unlocking the vast potential of optical sensing technology has long been hindered by the challenges of achieving fast, sensitive, and broadband photodetection at ambient temperatures. In this review, we summarize recent progress in the study of nonlinear photocurrent in topological quantum materials, and its application in broadband photodetection without the use of p–n junction based semiconductor diodes. The intrinsic quadratic transverse current-input voltage relation is used to rectify the alternating electric field from incident radio, terahertz or infrared waves into a direct current, without a bias voltage and at zero magnetic field. We review novel photocurrents in several material systems, including topological Weyl semimetals, chiral crystals, ferroelectric materials, and low dimensional topological insulators. These quantum materials hold tremendous promise for broadband high-frequency rectification and photo-detection, featuring substantial responsivity and detectivity.
| Original language | English |
|---|---|
| Article number | 100535 |
| Journal | Progress in Quantum Electronics |
| Volume | 97 |
| DOIs | |
| State | Published - Sep 2024 |
Funding
We are grateful to Qiong Ma and Liang Fu for helpful discussions. Y. S. and L. P. were supported by the National Science Foundation Materials Research Science and Engineering Center program through the UT Knoxville Center for Advanced Materials and Manufacturing ( DMR-2309083 ). Y. Z. is supported by the start-up fund at University of Tennessee Knoxville . T.D.N and Y.C.L. acknowledge the partial financial support from Texas A&M University and US Army Research Office (ARO) , under Award No. W911NF2120059 . We are grateful to Qiong Ma and Liang Fu for helpful discussions. Y. S. L. P. and J. L. were supported by the National Science Foundation Materials Research Science and Engineering Center program through the UT Knoxville Center for Advanced Materials and Manufacturing (DMR-2309083). Y. Z. is supported by the start-up fund at University of Tennessee Knoxville and Max Planck Partner Lab. T.D.N and Y.C.L. acknowledge the partial financial support from Texas A&M University and US Army Research Office (ARO), under Award No. W911NF2120059. DM acknowledges support from AFOSR MURI grant FA9550-20-1-0322.
Keywords
- Berry curvature and quantum metric
- Broadband photodetection
- Photocurrent
- Quantum materials