Zobrazeno 1 - 10
of 134
pro vyhledávání: '"Thomas E. Darcie"'
Publikováno v:
IEEE Access, Vol 8, Pp 214425-214433 (2020)
Recently, research has focused on developing efficient wave-guided THz system-on-chip (TSoC) components to reduce physical bulk, loss and cost of free-space THz systems. We recently demonstrated a TSoC platform using a coplanar-stripline (CPS) transm
Externí odkaz:
https://doaj.org/article/0e1804f152f2436fbfa53564ad12becd
Publikováno v:
IEEE Access, Vol 8, Pp 214425-214433 (2020)
Recently, research has focused on developing efficient wave-guided THz system-on-chip (TSoC) components to reduce physical bulk, loss and cost of free-space THz systems. We recently demonstrated a TSoC platform using a coplanar-stripline (CPS) transm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b4c0fe9ed8f861a35869c5fe32c382f4
https://ieeexplore.ieee.org/document/9272726/
https://ieeexplore.ieee.org/document/9272726/
Autor:
R. Levi Smith, Thomas E. Darcie
Publikováno v:
OSA Optical Sensors and Sensing Congress 2021 (AIS, FTS, HISE, SENSORS, ES).
Terahertz membrane-based system-on-chip devices provide unique access to concentrated fields surrounding the transmission line. We scan a needle in proximity of a CPS line and measure reflected sub-picosecond pulses. This provides useful design insig
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8cd82ffafe431f435200e16a650c7af6
https://doi.org/10.1364/sensors.2021.sf1b.6
https://doi.org/10.1364/sensors.2021.sf1b.6
Publikováno v:
Optics express. 28(21)
A membrane-based coplanar-stripline (CPS) transmission-line platform has recently enabled implementation of diverse THz system-on-chip (TSoC) components. In this paper, we demonstrate an elliptic-function THz low-pass filter (TLPF) using cascaded λ/
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3adc26f33622e07169527ac8ccc5af97
https://pubmed.ncbi.nlm.nih.gov/33115160
https://pubmed.ncbi.nlm.nih.gov/33115160
Autor:
Thomas Tiedje, Faezeh Fesharaki, Afshin Jooshesh, Thomas E. Darcie, Reuven Gordon, Vahid Bahrami-Yekta, Mahsa Mahtab
Publikováno v:
ACS Photonics. 4:1350-1354
Plasmon-enhanced photoconductive antennas allow for improved performance, particularly in below-band-gap absorption devices using low-temperature-grown GaAs. Here we design the plasmonic nanostructures to act as antireflection coatings as well, achie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d5260d0ddcb1d8db902d8f0b5517e451
https://doi.org/10.1021/acsphotonics.7b00410
https://doi.org/10.1021/acsphotonics.7b00410
Autor:
Thomas E. Darcie, Robert Smith
Publikováno v:
Optics express. 27(10)
Distortion-free transmission of THz-bandwidth pulses over centimeter-scale distances is desirable for future THz system-on-chip (TSoC) applications. In this work we achieve this by utilizing a coplanar strip (CPS) transmission line fabricated on a th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c5a5cd8aaf1f1ca82e9c905cfd4e3373
https://pubmed.ncbi.nlm.nih.gov/31163825
https://pubmed.ncbi.nlm.nih.gov/31163825
Autor:
Afshin Jooshesh, Thomas Tiedje, Faezeh Fesharaki, Thomas E. Darcie, Mahsa Mahtab, Vahid Bahrami-Yekta, Reuven Gordon
Publikováno v:
Optics express. 25(18)
Photocurrent generation in low-temperature-grown GaAs (LT-GaAs) has been significantly improved by growing a thin AlAs isolation layer between the LT-GaAs layer and semi-insulating (SI)-GaAs substrate. The AlAs layer allows greater arsenic incorporat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b4865485f52705451b0f6d4c6a77b4e2
https://pubmed.ncbi.nlm.nih.gov/29041502
https://pubmed.ncbi.nlm.nih.gov/29041502
Publikováno v:
Conference on Lasers and Electro-Optics.
We demonstrate eight times larger THz field emission with twice the bandwidth for a plasmon-enhanced low-temperature grown GaAs photoconductive antenna in comparison with a commercial InGaAs device at 1570 nm excitation.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2312e13ff735ebc25923d52c616e8926
https://doi.org/10.1364/cleo_si.2017.sm1j.3
https://doi.org/10.1364/cleo_si.2017.sm1j.3
Publikováno v:
Journal of Lightwave Technology. 32:3676-3682
We demonstrate experimentally the coupling of a THz beam into a laser-machined double-tapered thick slot waveguide operating between 0.3 and 2 THz. Simulation reveals that the THz field generated by a standard photoconductive antenna coupled to an un
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f9a45e38722077bd2047dcc003e5063
https://doi.org/10.1109/jlt.2014.2321992
https://doi.org/10.1109/jlt.2014.2321992
Publikováno v:
Optics & Laser Technology. 54:297-302
We improve the efficiency of THz receiving photoconductive switches by improving the conversion of the optical pump to signal current. This is achieved by both optimizing the incident excitation beam polarization and spatial profile of excitation. Du
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::43161cb8446e10999654faa5a07b2ad7
https://doi.org/10.1016/j.optlastec.2013.06.009
https://doi.org/10.1016/j.optlastec.2013.06.009