Vala Fathipour
Northwestern University
42 Papers
275 Citations
Vala Fathipour is an academic researcher from Northwestern University. The author has contributed to research in topics: Detector & Dark current. The author has an hindex of 11, co-authored 42 publications. Previous affiliations of Vala Fathipour include University of Tehran & University of California, Berkeley.
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Papers
Deep-UV microsphere projection lithography.
Alireza Bonakdar,Mohsen Rezaei,Robert L. Brown,Vala Fathipour,Eric Dexheimer,Sung Jun Jang,Hooman Mohseni +6 more
TL;DR: This Letter presents a single-exposure deep-UV projection lithography at 254-nm wavelength that produces nanopatterns in a scalable area with a feature size of 80 nm and characterize the lithography performance in terms of the proximity effect, lens aberration, and interference effect due to refractive index mismatch between photoresist and substrate.
42
Isolated electron injection detectors with high gain and record low dark current at telecom wavelength
Vala Fathipour,Omer Gokalp Memis,Sung Jun Jang,Robert L. Brown,Iman Hassani Nia,Hooman Mohseni +5 more
TL;DR: In this article, a short-wave infrared linear-mode electron-injection-based detector with InP material system with a type-II band alignment and high internal avalanche-free amplification mechanism is presented.
32
Impact of three-dimensional geometry on the performance of isolated electron-injection infrared detectors
TL;DR: In this paper, the influence of three-dimensional geometry of the isolated electron-injection detectors on their characteristics is analyzed and a quantitative study of the effect of scaling the injector diameter with respect to the trapping/absorbing layer diameters is presented.
29
Analytical modeling and numerical simulation of the short-wave infrared electron-injection detectors
TL;DR: In this article, the electron-injection detectors operate in the short-wave infrared range and utilize a type-II band alignment in InP/GaAsSb/InGaAs material system.
23
Demonstration of Shot-noise-limited Swept Source OCT Without Balanced Detection
TL;DR: It is shown for the first time that a photon detector is capable of achieving shot noise limited performance without using the balanced-detection technique in SS-OCT.