Dr. Ei E. Brown Profile

Dr. Ei E. Brown

Research Physicist at DEVCOM Army Research Lab

SPIE Involvement:

Author

Publications (31)

Proceedings Article | 10 June 2024 Presentation

Mid-IR fluorescence characteristics of low-phonon praseodymium doped Ternary chloride-based single crystals

Ei Brown, Zackery Fleischman, Jason McKay, Larry Merkle, Uwe Hommerich, Witold Palosz, Sudhir Trivedi, Mark Dubinskii

Proceedings Volume PC13029, PC1302907 (2024) https://doi.org/10.1117/12.3014545

KEYWORDS: Mid-IR, Crystals, Fluorescence, Praseodymium, Ions, Spectroscopy, Solid state lasers, Semiconductor lasers, Materials properties, Fluorescence spectroscopy

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Proceedings Article | 10 June 2024 Presentation

Comparing the diode-pumped ~3.0 µm laser potential of different Rare-Earth doped chalcogenide glasses

Zackery Fleischman, Ei Ei Brown, Mark Dubinskii, Larry Merkle, Jason McKay, Uwe Hommerich, Sudhir Trivedi, Witold Palosz

Proceedings Volume PC13029, PC1302909 (2024) https://doi.org/10.1117/12.3014549

KEYWORDS: Chalcogenide glass, Semiconductor lasers, Mid-IR, Phonons, Spectroscopy, Visible radiation, Transparency, Laser applications, Ions, Fluorescence spectroscopy

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Proceedings Article | 9 March 2024 Presentation

Mid-IR spectroscopic investigation of Dy3+ doped low-phonon chalcogenide glasses

Ei Brown, Zackery Fleischman, Jason McKay, Uwe Hommerich, Witold Palosz, Sudhir Trivedi, Mark Dubinskii

Proceedings Volume PC12882, PC128820D (2024) https://doi.org/10.1117/12.3002984

KEYWORDS: Mid-IR, Chalcogenide glass, Spectroscopy, Glasses, Laser applications, Ions, Time metrology, Solubility, Semiconductor lasers, Phonons

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Proceedings Article | 15 June 2023 Presentation

Optical spectroscopy of Ho3+ doped low-phonon glasses for mid-IR laser gain materials

Ei Brown

Proceedings Volume PC12515, PC1251505 (2023) https://doi.org/10.1117/12.2665018

KEYWORDS: Mid-IR, Glasses, Optical spectroscopy, Spectroscopy, Solid state lasers, Chalcogenide glass, Thermography, Quantum efficiency, Phonons, Optical properties

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Proceedings Article | 15 June 2023 Presentation

Exploring the mid-IR potential of Dy3+ doped low-phonon crystals and glasses

Zackery Fleischman, Ei Ei Brown, Mark Dubinskii, Jason McKay, Uwe Hömmerich, Witold Palosz, Sudhir Trivedi

Proceedings Volume PC12515, PC1251506 (2023) https://doi.org/10.1117/12.2666002

KEYWORDS: Mid-IR, Crystals, Glasses, Chalcogenide glass, Wind energy, Phonons, Spectroscopy, Visible radiation, Transparency, Medical procedures

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Proceedings Article | 14 March 2023 Presentation

Spectroscopic characterization of Er3+ doped low-phonon crystalline materials and chalcogenide glasses (Conference Presentation)

Ei Brown, Zackery Fleischman, Jason McKay, Uwe Hömmerich, Witold Palosz, Sudhir Trivedi, Mark Dubinskii

Proceedings Volume 12417, 1241703 (2023) https://doi.org/10.1117/12.2647890

KEYWORDS: Crystals, Spectroscopy, Chalcogenide glass, Mid-IR, Glasses, Infrared lasers, Transparency, Solid state lasers, Solid state electronics, Remote sensing

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Proceedings Article | 30 May 2022 Presentation

Ceramic rare earth-doped sesquioxides for infrared laser sources

Zackery Fleischman, Ei Brown, Mark Dubinskii, Shyam Bayya, Woohong Kim, Jas Sanghera, Tony Zhou

Proceedings Volume PC12092, PC1209201 (2022) https://doi.org/10.1117/12.2622503

KEYWORDS: Ceramics, Infrared lasers, Mid-IR, Laser applications, Laser crystals, Ions, Crystals, Temperature metrology, Spectroscopy, Phonons

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Proceedings Article | 30 May 2022 Presentation

Low-phonon rare-earth doped GaGe-based chalcogenide glasses for mid-IR laser gain materials

Ei Brown, Zackery Fleischman, Jason McKay, Jazmine Riggins, Uwe Hommerich, Witold Palosz, Sudhir Trivedi, Mark Dubinskii

Proceedings Volume PC12092, PC1209202 (2022) https://doi.org/10.1117/12.2621756

KEYWORDS: Mid-IR, Chalcogenide glass, Solid state lasers, Transparency, Surgery, Spectroscopy, Selenium, Remote sensing, Phonons, Oxides

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Proceedings Article | 30 May 2022 Presentation

Spectroscopic investigation of rare-earth doped CsCdCl3 crystals for potential mid-IR (3-5 um) laser sources

Ei Brown, Zackery Fleischman, Jason McKay, Amin Kabir, Uwe Hommerich, Sudhir Trivedi, Mark Dubinskii

Proceedings Volume PC12092, PC1209203 (2022) https://doi.org/10.1117/12.2621892

KEYWORDS: Mid-IR, Spectroscopy, Crystals, Luminescence, Laser sources, Laser crystals, Phonons, Laser development, Erbium lasers, Solid state lasers

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Proceedings Article | 1 April 2022 Presentation

Comparative mid-IR emission study of holmium doped low-phonon fluoride and chloride crystals

Ei Brown, Zackery Fleischman, Uwe Hömmerich, Sudhir Trivedi, Mark Dubinskii

Proceedings Volume PC11997, PC119970A (2022) https://doi.org/10.1117/12.2610206

KEYWORDS: Mid-IR, Crystals, Holmium, Crystallography, Ions, Spectroscopy, Phonons, Laser crystals, Solid state lasers, Medicine

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Proceedings Article | 12 April 2021 Presentation

Spectroscopic characterization of the 3-micron laser transition in Dy:BaF2

Zackery Fleischman, Ei Ei Brown, Mark Dubinskii, Jenny Rosen

Proceedings Volume 11724, 117240D (2021) https://doi.org/10.1117/12.2587089

KEYWORDS: Spectroscopy, Phonons, Mid-IR, Laser crystals, Barium, Temperature metrology, Strontium, Luminescence, Fluorite, Crystals

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Proceedings Article | 12 April 2021 Presentation + Paper

Comparative study of rare-earth doped low-phonon fluoride and chloride crystals for mid-IR laser potential

E. Brown, Z. Fleischman, J. McKay, U. Hömmerich, S. Trivedi, M. Dubinskii

Proceedings Volume 11724, 117240C (2021) https://doi.org/10.1117/12.2587796

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Proceedings Article | 5 March 2021 Presentation + Paper

Mid-IR emission characteristics of low-phonon erbium-doped ternary chloride-based single crystals

E. Brown, Z. Fleischman, R. Hawrami, E. Ariesanti, A. Burger, U. Hömmerich, S. Trivedi, M. Dubinskii

Proceedings Volume 11682, 116820R (2021) https://doi.org/10.1117/12.2579430

KEYWORDS: Mid-IR, Crystals, Erbium, Spectroscopy, Phonons, Ions, Surgery, Solid state lasers, Semiconductor lasers, Remote sensing

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Proceedings Article | 5 March 2021 Presentation

Exploring the 3-micron mid-infrared laser potential of Dy:BaF2

Zackery Fleischman, Ei Brown, Mark Dubinskii, Jenny Rosen

Proceedings Volume 11682, 116820N (2021) https://doi.org/10.1117/12.2587772

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Proceedings Article | 14 May 2018 Presentation

Infrared absorption and fluorescence properties of Holmium doped Potassium Lanthanum Chloride (Conference Presentation)

Ei Brown, Zackery Fleischman, Larry Merkle, Emmanuel Rowe, Arnold Burger, Stephen Payne, Mark Dubinskiy

Proceedings Volume 10637, 106370X (2018) https://doi.org/10.1117/12.2309578

KEYWORDS: Luminescence, Infrared radiation, Holmium, Potassium, Lanthanum, Absorption, Infrared spectroscopy, Phonons, Mid-IR, Spectroscopy

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Proceedings Article | 19 September 2016 Paper

Probing organic residues on Martian regolith simulants using a long-wave infrared Laser-induced breakdown spectroscopy linear array detection system

Narasimha Prasad, Clayton S.-C. Yang, Feng Jin, Ken Jia, EiEi Brown, Uwe Hömmerich, Yingqing Jia, Sudhir Trivedi, Priyalal Wijewarnasuriya, Eric Decuir, Alan Samuels

Proceedings Volume 9981, 99810I (2016) https://doi.org/10.1117/12.2242901

KEYWORDS: Laser induced breakdown spectroscopy, Long wavelength infrared, Detector arrays, Visible radiation, Infrared spectroscopy, Infrared radiation, Molecular lasers, Infrared detectors, Pulsed laser operation, Molecules

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Proceedings Article | 13 May 2016 Paper

Eye-safe infrared laser-induced breakdown spectroscopy (LIBS) emissions from energetic materials

Ei Brown, Uwe Hömmerich, Clayton Yang, Feng Jin, Sudhir Trivedi, Alan Samuels

Proceedings Volume 9824, 98241B (2016) https://doi.org/10.1117/12.2225231

KEYWORDS: Laser induced breakdown spectroscopy, Infrared spectroscopy, Infrared radiation, Long wavelength infrared, Nd:YAG lasers, Potassium, FT-IR spectroscopy, Aluminum, Cements, Sensors

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Proceedings Article | 12 May 2016 Paper

Chemical and explosive detection with long-wave infrared laser induced breakdown spectroscopy

Feng Jin, Sudhir Trivedi, Clayton Yang, Ei Brown, Eric Kumi-Barimah, Uwe Hommerich, Alan Samuels

Proceedings Volume 9824, 98240Q (2016) https://doi.org/10.1117/12.2223427

KEYWORDS: Laser induced breakdown spectroscopy, Long wavelength infrared, Explosives detection, Infrared lasers, Spectroscopy, Explosives, Pulsed laser operation, Detector arrays, Electronics, Liquids

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Proceedings Article | 24 February 2016 Paper

White-light emission studies of dysprosium-doped halide crystals

B. Rami Reddy, Mical Culp, Sudhir Trivedi, Uwe Hommerich, EiEi Brown

Proceedings Volume 9744, 974406 (2016) https://doi.org/10.1117/12.2209405

KEYWORDS: Phonons, Luminescence, Crystals, Absorption, Ions, Crystallography, Lead, Light emitting diodes, Diodes, Potassium

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Proceedings Article | 16 March 2015 Paper

Optical properties of Pr3+-, Ce3+-, and Eu2+-doped ternary lead halides

Ei Brown, Althea Bluiett, Uwe Hömmerich, Sudhir Trivedi

Proceedings Volume 9359, 93591U (2015) https://doi.org/10.1117/12.2079426

KEYWORDS: Absorption, Crystals, Ions, Praseodymium, Upconversion, Mid-IR, Luminescence, Lead, Spectroscopy, Scintillators

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Proceedings Article | 10 March 2015 Paper

Comparative spectroscopic studies of Ho: KPb2Cl5, Ho: KPb2Br5, and Ho: YAG for 2 µm laser cooling applications

Ei Brown, Uwe Hömmerich, Eric Kumi-Barimah, Althea Bluiett, Sudhir Trivedi

Proceedings Volume 9380, 93800O (2015) https://doi.org/10.1117/12.2077722

KEYWORDS: Crystals, Holmium, Absorption, Quantum efficiency, YAG lasers, Fiber lasers, Luminescence, Spectroscopy, Laser applications, Infrared radiation

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Proceedings Article | 7 March 2014 Paper

Infrared absorption and fluorescence properties of Ho-doped KPb2Br5

Ei Brown, Uwe Hömmerich, Simone Hyater-Adams, Olusola Oyebola, Althea Bluiett, Sudhir Trivedi

Proceedings Volume 8982, 89821S (2014) https://doi.org/10.1117/12.2037948

KEYWORDS: Absorption, Holmium, Crystals, Quantum efficiency, Infrared radiation, Luminescence, Solid state lasers, Infrared spectroscopy, Spectroscopy, Phonons

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Proceedings Article | 28 February 2014 Paper

Spectroscopic properties of Pr-doped PbCl2 for eye-safe 1.6µm laser applications

Ivy Jones, Uwe Hömmerich, EiEi Brown, Sudhir Trivedi

Proceedings Volume 8959, 89591T (2014) https://doi.org/10.1117/12.2037374

KEYWORDS: Absorption, Crystals, Ions, Laser applications, Laser crystals, Spectroscopy, Optical pumping, Semiconductor lasers, Erbium, Laser development

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Proceedings Article | 19 February 2014 Paper

Spectroscopic evaluation of Tm-doped potassium lead halides for 2um laser-cooling applications

Eric Kumi-Barimah, Uwe Hömmerich, EiEi Brown, Sudhir Trivedi

Proceedings Volume 9000, 90000O (2014) https://doi.org/10.1117/12.2037412

KEYWORDS: Luminescence, Thulium, Crystals, Absorption, Laser crystals, Infrared imaging, Potassium, Crystallography, Solids, Spectroscopy

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Proceedings Article | 29 May 2013 Paper

Infrared (1-12 um) atomic and molecular emission signatures from energetic materials using laser induced breakdown spectroscopy

E. Kumi Barimah, U. Hömmerich, E. Brown, C. S.-C. Yang, S. Trivedi, F. Jin, P. Wijewarnasuriya, A. Samuels, A. Snyder

Proceedings Volume 8710, 87100V (2013) https://doi.org/10.1117/12.2017913

KEYWORDS: Laser induced breakdown spectroscopy, Infrared signatures, Long wavelength infrared, Sodium, Near infrared, Potassium, Infrared radiation, Chemical species, Infrared spectroscopy, FT-IR spectroscopy

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Proceedings Article | 11 March 2013 Paper

Upconversion and 1.5 µm - 1.6 µm infrared emission studies of Er3+ doped in the low phonon-energy hosts KPb2Cl5 and KPb2Br5 via 1.5 µm laser excitation

Althea Bluiett, Ei Brown, Craig Hanley, Uwe Hömmerich, Sudhir Trivedi

Proceedings Volume 8621, 86211A (2013) https://doi.org/10.1117/12.2003192

KEYWORDS: Erbium, Upconversion, Absorption, Infrared radiation, Crystals, Pulsed laser operation, Continuous wave operation, Ions, Energy transfer, Crystallography

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Proceedings Article | 6 March 2013 Paper

Spectroscopic characterization and upconversion processes under ~1.5 um pumping in Er doped Yttria ceramics

Ei Brown, Uwe Hommerich, Althea Bluiett, Courtney Kucera, John Ballato, Sudhir Trivedi

Proceedings Volume 8599, 859929 (2013) https://doi.org/10.1117/12.2002522

KEYWORDS: Upconversion, Ceramics, Absorption, Erbium, Spectroscopy, Crystals, Nanocrystals, Energy transfer, Laser applications, Ions

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Proceedings Article | 4 June 2011 Paper

Infrared laser-induced breakdown spectroscopy emissions from energetic materials

Clayton Yang, E. Brown, Uwe Hommerich, Sudhir Trivedi, Alan Samuels, A. Peter Snyder

Proceedings Volume 8018, 80181P (2011) https://doi.org/10.1117/12.876375

KEYWORDS: Laser induced breakdown spectroscopy, Nitrogen, FT-IR spectroscopy, Infrared spectroscopy, Chemical analysis, Infrared signatures, Molecules, Explosives, Carbonates, Chemical species

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