John T. Leonard

911 citations

30 papers · 755 indexed · h-index 14

Co-authors: Shuji Nakamura Steven P. DenBaars James S. Speck Daniel A. Cohen Benjamin P. Yonkee Erin C. Young Tal Margalith Robert M. Farrell
Topics: Semiconductor Quantum Structures and Devices (21 papers)GaN-based semiconductor devices and materials (19 papers)Semiconductor Lasers and Optical Devices (16 papers)
Cited by: Condensed Matter Physics Atomic and Molecular Physics, and Optics Electrical and Electronic Engineering
Journals: Applied Physics Letters Journal of Applied Physics American Journal of Obstetrics and Gynecology
Partner nations: United States Saudi Arabia

In The Last Decade

John T. Leonard

29 papers receiving 707 citations

Peers

Countries citing papers authored by John T. Leonard

Since Specialization

Citations

This map shows the geographic impact of John T. Leonard's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by John T. Leonard with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites John T. Leonard more than expected).

Fields of papers citing papers by John T. Leonard

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by John T. Leonard. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by John T. Leonard. The network helps show where John T. Leonard may publish in the future.

Co-authorship network of co-authors of John T. Leonard

This figure shows the co-authorship network connecting the top 25 collaborators of John T. Leonard. A scholar is included among the top collaborators of John T. Leonard based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with John T. Leonard. John T. Leonard is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

#	Work	Indexed citations
1	Continuous-wave operation of m-plane GaN-based vertical-cavity surface-emitting lasers with a tunnel junction intracavity contact 2018 ·Applied Physics Letters ·(unknown),(unknown),Erin C. Young,Jared A. Kearns,Daniel A. Cohen,John T. Leonard,Tal Margalith,Steven P. DenBaars,Shuji Nakamura	42
2	Continuous-wave operation of nonpolar GaN-based vertical-cavity surface-emitting lasers 2018 ·King Abdullah University of Science and Technology Repository (King Abdullah University of Science and Technology) ·(unknown),Jared A. Kearns,Steven P. DenBaars,(unknown),Erin C. Young,Daniel A. Cohen,John T. Leonard,Tal Margalith,Shuji Nakamura	8
3	Nonpolar GaN-based vertical-cavity surface-emitting lasers 2017 ·(unknown),Seunggeun Lee,Erin C. Young,John T. Leonard,Daniel A. Cohen,Benjamin P. Yonkee,Tal Margalith,Robert M. Farrell,Steven P. DenBaars,James S. Speck,Shuji Nakamura	1
4	Techniques to reduce thermal resistance in flip‐chip GaN‐based VCSELs 2017 ·physica status solidi (a) ·Saadat Mishkat‐Ul‐Masabih,John T. Leonard,Daniel A. Cohen,Shuji Nakamura,Daniel Feezell	20
5	III-Nitride Vertical-Cavity Surface-Emitting Lasers 2016 ·PhDT ·John T. Leonard	2
6	GHz modulation bandwidth from single-longitudinal mode violet-blue VCSEL using nonpolar InGaN/GaN QWs 2016 ·Conference on Lasers and Electro-Optics ·Chao Shen,John T. Leonard,Erin C. Young,Tien Khee Ng,Steven P. DenBaars,James S. Speck,Shuji Nakamura,A. Alyamani,Munir M. El‐Desouki,Boon S. Ooi	6
7	Smooth and selective photo-electrochemical etching of heavily doped GaN:Si using a mode-locked 355 nm microchip laser 2016 ·Applied Physics Express ·(unknown),Saadat Mishkat‐Ul‐Masabih,John T. Leonard,Daniel Feezell,Daniel A. Cohen,James S. Speck,Shuji Nakamura,Steven P. DenBaars	15
8	High-brightness semipolar (2021¯) blue InGaN/GaN superluminescent diodes for droop-free solid-state lighting and visible-light communications 2016 ·Optics Letters ·Chao Shen,Tien Khee Ng,John T. Leonard,(unknown),Shuji Nakamura,Steven P. DenBaars,James S. Speck,Ahmed Y. Alyamani,Munir M. El‐Desouki,Boon S. Ooi	52
9	Nonpolar III-nitride vertical-cavity surface-emitting laser with a photoelectrochemically etched air-gap aperture 2016 ·Applied Physics Letters ·John T. Leonard,Benjamin P. Yonkee,Daniel A. Cohen,(unknown),(unknown),James S. Speck,Steven P. DenBaars,Shuji Nakamura	39
10	Hybrid MOCVD/MBE GaN tunnel junction LEDs with greater than 70% wall plug efficiency 2016 ·Benjamin P. Yonkee,Erin C. Young,John T. Leonard,Changmin Lee,Sang Ho Oh,Steven P. DenBaars,James S. Speck,Shuji Nakamura	2
11	Comparison of nonpolar III-nitride vertical-cavity surface-emitting lasers with tunnel junction and ITO intracavity contacts 2016 ·Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE ·John T. Leonard,Erin C. Young,Benjamin P. Yonkee,Daniel A. Cohen,Chao Shen,Tal Margalith,Tien Khee Ng,Steven P. DenBaars,Boon S. Ooi,James S. Speck,Shuji Nakamura	10
12	High-Modulation-Efficiency, Integrated Waveguide Modulator–Laser Diode at 448 nm 2016 ·ACS Photonics ·Chao Shen,Tien Khee Ng,John T. Leonard,(unknown),Hassan M. Oubei,Mohd Sharizal Alias,Shuji Nakamura,Steven P. DenBaars,James S. Speck,Ahmed Y. Alyamani,Munir M. El‐Desouki,Boon S. Ooi	75
13	Semipolar (2021) III-Nitride P-Down LEDs with in situ anneal to reduce the Mg memory effect 2016 ·Journal of Crystal Growth ·(unknown),John T. Leonard,Benjamin P. Yonkee,Christopher D. Pynn,Tom Mates,Daniel A. Cohen,Robert M. Farrell,Tal Margalith,Steven P. DenBaars,James S. Speck,Shuji Nakamura	1
14	Nonpolar III-nitride vertical-cavity surface-emitting lasers incorporating an ion implanted aperture 2015 ·Applied Physics Letters ·John T. Leonard,Daniel A. Cohen,Benjamin P. Yonkee,Robert M. Farrell,Tal Margalith,(unknown),Steven P. DenBaars,James S. Speck,Shuji Nakamura	84
15	Demonstration of low resistance ohmic contacts to p-type (2021) GaN 2015 ·Semiconductor Science and Technology ·Benjamin P. Yonkee,Robert M. Farrell,John T. Leonard,Steven P. DenBaars,James S. Speck,Shuji Nakamura	11
16	Selective and controllable lateral photoelectrochemical etching of nonpolar and semipolar InGaN/GaN multiple quantum well active regions 2015 ·Applied Physics Express ·(unknown),Leah Y. Kuritzky,John T. Leonard,(unknown),Kenneth Rose,Shuji Nakamura,James S. Speck,Daniel A. Cohen,Steven P. DenBaars	7
17	Smooth e-beam-deposited tin-doped indium oxide for III-nitride vertical-cavity surface-emitting laser intracavity contacts 2015 ·Journal of Applied Physics ·John T. Leonard,Daniel A. Cohen,Benjamin P. Yonkee,Robert M. Farrell,Steven P. DenBaars,James S. Speck,Shuji Nakamura	25
18	Low modulation bias InGaN-based integrated EA-modulator-laser on semipolar GaN substrate 2015 ·King Abdullah University of Science and Technology Repository (King Abdullah University of Science and Technology) ·Chao Shen,John T. Leonard,(unknown),Hassan M. Oubei,Mohd Sharizal Alias,Tien Khee Ng,Shuji Nakamura,Steven P. DenBaars,James S. Speck,Ahmed Y. Alyamani,Munir M. El‐Desouki,Boon S. Ooi	1
19	Demonstration of a III-nitride vertical-cavity surface-emitting laser with a III-nitride tunnel junction intracavity contact 2015 ·Applied Physics Letters ·John T. Leonard,Erin C. Young,Benjamin P. Yonkee,Daniel A. Cohen,Tal Margalith,Steven P. DenBaars,James S. Speck,Shuji Nakamura	121
20	Industrial Digital Printing using EleJet™ Technology 1999 ·Technical programs and proceedings ·(unknown),John T. Leonard,(unknown),(unknown),(unknown),(unknown)	1

About John T. Leonard

John T. Leonard is a scholar working on Condensed Matter Physics, Atomic and Molecular Physics, and Optics and Electrical and Electronic Engineering, having authored 30 papers that have together received 755 indexed citations. Recurring topics across this work include Semiconductor Quantum Structures and Devices (21 papers), GaN-based semiconductor devices and materials (19 papers) and Semiconductor Lasers and Optical Devices (16 papers). The work is most often cited by research in Condensed Matter Physics (544 citations), Atomic and Molecular Physics, and Optics (455 citations) and Electrical and Electronic Engineering (559 citations). John T. Leonard has collaborated with scholars based in United States and Saudi Arabia. Frequent co-authors include Shuji Nakamura, Steven P. DenBaars, James S. Speck, Daniel A. Cohen, Benjamin P. Yonkee, Erin C. Young, Tal Margalith, Robert M. Farrell, Jared A. Kearns and Chao Shen. Their work appears in journals such as Applied Physics Letters, Journal of Applied Physics and American Journal of Obstetrics and Gynecology.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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