Umesh K. Mishra - Publications, H-index & Citations

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Umesh K. Mishra

University of California, Santa Barbara

108H-index

1.2KPaper Count

5.5WCitation Count

Published Papers 196

Publication Date

N-Polar GaN HEMT With Deep Wet Etched Recess Demonstrating Record G-Band Performance at 170 GHz

IEEE Electron Device Letters

IF4.5

2026-04-20

PREAI

Emre Akso; Henry Collins; Christopher J. Clymore; Sunil Choudhary; Kamruzzaman Khan; Tanmay Chavan; Weiyi Li; Matthew Guidry; Elaheh Ahmadi; Umesh K. Mishra

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Smoothed nodal density based structural topology optimization with B-spline-based material interpolation

Engineering with Computers

IF4.9

2026-01-28

PREAI

Umesh Mishra; Tejdeep Ganekanti; Atanu Banerjee

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Bias-Insensitive High Linearity of N-Polar Deep Recess GaN HEMTs With Regrown GaN Cap

IEEE Electron Device Letters

IF4.5

2026-01-20

PREAI

Boyu Wang; Emre Akso; Henry Collins; Vineeta Muthuraj; Kamruzzaman Khan; Christopher Clymore; Tanmay Chavan; Matthew Guidry; Stacia Keller; Umesh K. Mishra

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MOCVD Growth of Relaxed, Crack-Free AlGaN on Tiled GaN Substrates

CRYSTALS

IF2.4

2025-11-08

OAAI

Hatui, Nirupam; Collins, Henry; Kayede, Emmanuel; Wu, Feng; Keller, Stacia; Mishra, Umesh K.

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High-Q; Size-Independent; and Reconfigurable Optical Antennas Embedded in Zero-Index Cavities

ACS Nano

IF16

2025-10-08

PREAI

Prasad P. Iyer; Mihir Pendharkar; Anchal Agarwal; Humberto Foronda; Micheal Iza; Umesh K. Mishra; Shuji Nakamura; Steven DenBaars; Stacia Keller; Chris Palmstrøm; Jon A. Schuller

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Recent Advancements in N-polar GaN HEMT Technology

CRYSTALS

IF2.4

2025-09-22

OAAI

Akso, Emre; Khan, Kamruzzaman; Collins, Henry; Wang, Boyu; Hamwey, Robert; Chavan, Tanmay; Clymore, Christopher; Li, Weiyi; Odabasi, Oguz; Guidry, Matthew; Keller, Stacia; Ahmadi, Elaheh; DenBaars, Steven P.; Mishra, Umesh

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Emerging GaN Technologies for Next-Generation Millimeter-Wave Applications

IEEE MICROWAVE MAGAZINE

IF2.6

2024-10-01

PREAI

Medjdoub, Farid; Shinohara, Keisuke; Thome, Fabian; Moon, Jeong-sun; Chumbes, Eduardo; Guidry, Matthew T.; Mishra, Umesh; Zanoni, Enrico; Meneghini, Matteo; Meneghesso, Gaudenzio; Pomeroy, James W.; Thingujam, Terirama; Kuball, Martin

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Rational design and synthesis of novel triazole- and tetrazole-fused iminosugars as potential inhibitors of amyotrophic lateral sclerosis (ALS) linked SOD1 aggregation

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES

IF8.5

2023-12-01

PREAI

Santhanam, Venkatesan; Modi, Priya; Mishra, Umesh K.; Jahan, Ishrat; Ramesh, Namakkal G.; Deep, Shashank

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Gallium Nitride Versus Silicon Carbide: Beyond the Switching Power Supply

PROCEEDINGS OF THE IEEE

IF25.9

2023-04-01

OAAI

Mishra, Umesh K.

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Delignification kinetics, colloidal behaviour, and cost-benefit analysis of cellulose nanofiber from Imperata cylindrica

BIOMASS CONVERSION AND BIOREFINERY

IF4.1

2022-10-27

PREAI

Majumdar, Ria; Mishra, Umesh; Mahata, Nibedita; Mondal, Abhijit; Bhunia, Biswanath

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Demonstration of atmospheric plasma activated direct bonding of N-polar GaN and β-Ga2O3 (001) substrates

APPLIED PHYSICS LETTERS

IF3.6

2022-04-05

OAAI

Jian, Zhe (Ashley); Clymore, Christopher J.; Sun, Kai; Mishra, Umesh; Ahmadi, Elaheh

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Acceptor traps as the source of holes in p-type N-polar GaN/(AlN/AlGaN) superlattices

APPLIED PHYSICS LETTERS

IF3.6

2022-03-29

OAAI

Krishna, Athith; Raj, Aditya; Hatui, Nirupam; Keller, Stacia; Denbaars, Steven; Mishra, Umesh K.

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Observation of self-assembled InGaN/GaN superlattice structure grown on N-polar GaN by plasma-assisted molecular beam epitaxy

APL MATERIALS

IF4.5

2021-12-20

PREAI

Khan, K.; Diez, S.; Sun, Kai; Wurm, C.; Mishra, U. K.; Ahmadi, E.

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Effects of surface oxidation on the pH-dependent surface charge of oxidized aluminum gallium nitride

JOURNAL OF COLLOID AND INTERFACE SCIENCE

IF9.7

2021-12-01

PREAI

Wang, Jianan; Li, Hua; Li, Haoran; Keller, Stacia; Mishra, Umesh K.; Nener, Brett D.; Parish, Giacinta; Atkin, Rob

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Evaluation of linearity at 30 GHz for N-polar GaN deep recess transistors with 10.3 W/mm of output power and 47.4% PAE

APPLIED PHYSICS LETTERS

IF3.6

2021-08-18

PREAI

Romanczyk, Brian; Guidry, Matthew; Zheng, Xun; Shrestha, Pawana; Li, Haoran; Ahmadi, Elaheh; Keller, Stacia; Mishra, Umesh K.

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Investigation and optimization of N-polar GaN porosification for regrowth of smooth hillocks-free GaN films

APPLIED PHYSICS LETTERS

IF3.6

2021-07-30

PREAI

Collins, Henry; Sayed, Islam; Liu, Wenjian; Pasayat, Shubhra S.; Taylor, Aidan A.; Li, Weiyi; Keller, Stacia; Mishra, U. K.

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Investigation and optimization of HfO2 gate dielectric on N-polar GaN: Impact of surface treatments, deposition, and annealing conditions

APPLIED PHYSICS LETTERS

IF3.6

2021-07-27

OAAI

Mohanty, Subhajit; Sayed, Islam; Jian, Zhe (Ashley); Mishra, Umesh; Ahmadi, Elaheh

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pH-Dependent surface charge at the interfaces between aluminum gallium nitride (AlGaN) and aqueous solution revealed by surfactant adsorption

JOURNAL OF COLLOID AND INTERFACE SCIENCE

IF9.7

2021-02-01

OAAI

Wang, Jianan; Zhang, Xing; Li, Hua; Wang, Constance; Li, Haoran; Keller, Stacia; Mishra, Umesh K.; Nener, Brett D.; Parish, Giacinta; Atkin, Rob

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Supramolecular Architecture through Self-Organization of Janus-Faced Homoazanucleosides

JOURNAL OF ORGANIC CHEMISTRY

IF3.6

2020-12-07

PREAI

Mishra, Umesh K.; Sanghvi, Yogesh S.; Egli, Martin; Ramesh, Namakkal G.

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Color-tunable <10 μm square InGaN micro-LEDs on compliant GaN-on-porous-GaN pseudo-substrates

APPLIED PHYSICS LETTERS

IF3.6

2020-08-14

OAAI

Pasayat, Shubhra S.; Ley, Ryan; Gupta, Chirag; Wong, Matthew S.; Lynsky, Cheyenne; Wang, Yifan; Gordon, Michael J.; Nakamura, Shuji; Denbaars, Steven P.; Keller, Stacia; Mishra, Umesh K.

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Research Directions