Review of GaN-based devices for terahertz operation

K Ahi - Optical Engineering, 2017 - spiedigitallibrary.org
GaN provides the highest electron saturation velocity, breakdown voltage, operation
temperature, and thus the highest combined frequency-power performance among …

[HTML][HTML] Terahertz imaging for breast cancer detection

L Wang - Sensors, 2021 - mdpi.com
Terahertz (THz) imaging has the potential to detect breast tumors during breast-conserving
surgery accurately. Over the past decade, many research groups have extensively studied …

Quality control and authentication of packaged integrated circuits using enhanced-spatial-resolution terahertz time-domain spectroscopy and imaging

K Ahi, S Shahbazmohamadi, N Asadizanjani - Optics and Lasers in …, 2018 - Elsevier
In this paper, a comprehensive set of techniques for quality control and authentication of
packaged integrated circuits (IC) using terahertz (THz) time-domain spectroscopy (TDS) is …

Compressed sensing with near-field THz radiation

RI Stantchev, DB Phillips, P Hobson, SM Hornett… - Optica, 2017 - opg.optica.org
We demonstrate a form of near-field terahertz (THz) imaging that is compatible with
compressed sensing algorithms. By spatially photomodulating THz pulses using a set of …

Mathematical modeling of THz point spread function and simulation of THz imaging systems

K Ahi - IEEE Transactions on Terahertz Science and …, 2017 - ieeexplore.ieee.org
This paper presents a comprehensive theory for cohesive mathematical modeling and
simulation of THz imaging systems. For mathematical modeling of the point spread function …

Non-destructive investigation of paintings on canvas by continuous wave terahertz imaging and flash thermography

H Zhang, S Sfarra, K Saluja, J Peeters, J Fleuret… - Journal of …, 2017 - Springer
Terahertz (THz) imaging is increasingly used in the cultural heritage field. In particular,
continuous wave (CW) and low frequency THz is attracting more attention. The first …

[HTML][HTML] Present and future of terahertz integrated photonic devices

S Rajabali, IC Benea-Chelmus - Apl Photonics, 2023 - pubs.aip.org
Photonic integrated circuits have benefited many fields in the natural sciences. Their
nanoscale patterning has led to the discovery of novel sources and detectors from ultraviolet …

A method and system for enhancing the resolution of terahertz imaging

K Ahi - Measurement, 2019 - Elsevier
In this paper, a comprehensive method and process for developing Terahertz (THz) images
with enhanced resolution is introduced. This method is implemented as a system comprised …

Review of THz-based semiconductor assurance

J True, C Xi, N Jessurun, K Ahi… - Optical …, 2021 - spiedigitallibrary.org
Terahertz radiation for inspection and fault detection has been of interest for the
semiconductor industry since the first generation and detection of THz signals. Until recent …

Toshi-towards secure heterogeneous integration: Security risks, threat assessment, and assurance

N Vashistha, ML Rahman, MSU Haque… - Cryptology ePrint …, 2022 - eprint.iacr.org
The semiconductor industry is entering a new age in which device scaling and cost
reduction will no longer follow the decades-long pattern. Packing more transistors on a …