Photoconductive terahertz detectors with 105 dB peak dynamic range made of rhodium doped InGaAs
Abstract
Rhodium (Rh)-doped In0.53Ga0.47As grown by gas-source molecular beam epitaxy is investigated as a terahertz (THz) detector antenna for optical excitation at 1550 nm. The 4d transition metal rhodium acts as a deep level and ultrafast trapping center. At a doping concentration around 8 × 1019 cm−3, InGaAs:Rh exhibits ideal properties for application as a THz antenna: an ultrashort carrier lifetime below 200 fs in combination with a mobility of 1010 cm2/Vs. The THz detectors fabricated from this sample show a record peak dynamic range of 105 dB and a bandwidth of up to 6.5 THz.
Integrity signals
Registry
Cites
Statistics
Claims the paper makes
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
SLAPCOPS and ECOPS systems utilizing resonator-internal repetition-rate modulation can achieve scan rates up to 1600 terahertz pulse traces per second.
“These delay-line-free systems can achieve scan rates up to 1600 terahertz pulse traces per second [11]”
From Electronic phase detection with a sub-10 fs timing jitter for terahertz time-domain spectroscopy systems (2023) · cites this paper as [11]
Terahertz time-domain spectroscopy systems based on resonator-internal repetition-rate modulation, such as SLAPCOPS and ECOPS, rely on electronic phase detectors that typically exhibit non-negligible random and systematic timing error.
“Terahertz time-domain spectroscopy systems based on resonator-internal repetition-rate modulation, such as SLAPCOPS [12] and ECOPS [11], rely on electronic phase detectors which are typically prone to exhibit both a non-negligible random and systematic timing error.”
From Electronic phase detection with a sub-10 fs timing jitter for terahertz time-domain spectroscopy systems (2023) · cites this paper as [11]
The citation lists haven’t been fetched yet
References 24 · Cited by 68
- Authors
- Kohlhaas, R. B., Breuer, S., Nellen, S., Liebermeister, L., Schell, M., Semtsiv, M. P., Masselink, W. T., & Globisch, B.
- Affiliations
- Fraunhofer Institute for Telecommunications, Heinrich Hertz Institute (DE)
- Humboldt-Universität zu Berlin (DE)
- Venue
- Applied Physics Letters
- Publisher
- AIP Publishing
- Published
- 2019-06-03
- Volume
- 114
- Issue
- 22
- ISSN
- 0003-6951 (ISSN-L)
- 1077-3118
- OpenAlex
- W2948795732
- Cited by
- 68
- References
- 24
- Citations by year
- 2026: 6 · 2025: 7 · 2024: 9 · 2023: 9 · 2022: 8 · 2021: 15 · 2020: 9 · 2019: 5
- FWCI
- 3.33
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Applied Physics Letters (publishedVersion)
- Publikationsdatenbank der Fraunhofer-Gesellschaft (Fraunhofer-Gesellschaft) (submittedVersion)
- Fraunhofer-Publica (Fraunhofer-Gesellschaft) (submittedVersion)
- Funders
- Deutsche Forschungsgemeinschaft (2533/2-1)
- Topics
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Terahertz technology and applications
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Advanced Semiconductor Detectors and Materials
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Superconducting and THz Device Technology
- Keywords
- terahertz detectors, photoconductive detectors, rhodium doping, InGaAs, deep levels, charge trapping, carrier lifetime, carrier mobility, dynamic range, terahertz antennas, photoexcitation, 1550 nm
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
