Dr. Kenneth L. Schepler Profile

Dr. Kenneth L. Schepler

Research Professor at CREOL The College of Optics and Photonics

SPIE Involvement:

Conference Program Committee | Author | Editor

Area of Expertise:

laser , solid-state , nonlinear optics , transition-metals

Publications (32)

Proceedings Article | 13 June 2023 Presentation + Paper

Luminescent Fe:ZnSe doped As-S-Se optical composites for the mid-infrared

Rashi Sharma, Alexandros Kostogiannes, Daniel Wiedman, Jaynlynn Sosa, Justin Cook, James Drake, David Furniss, Boyu Xiao, Angela Seddon, Parag Banerjee, Kenneth Schepler, Kathleen Richardson

Proceedings Volume 12518, 1251804 (2023) https://doi.org/10.1117/12.2663920

KEYWORDS: Zinc selenide, Glasses, Iron, Composites, Atomic layer deposition, Particles, Bubbles, Matrices, Crystals, Zinc sulfide

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SPIE Journal Paper | 11 January 2023 Open Access

Crystal host engineering for transition metal lasers

Jonathan Evans, Sean McDaniel, Ronald Stites, Patrick Berry, Gary Cook, Thomas Harris, Kenneth Schepler

OE, Vol. 62, Issue 01, 017101, (January 2023) https://doi.org/10.1117/12.10.1117/1.OE.62.1.017101

KEYWORDS: Crystals, Ions, Iron, Absorption spectrum, Transition metals, Laser crystals, Engineering, Optical engineering, Chromium, Alloys

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Proceedings Article | 7 March 2022 Presentation + Paper

Propagation analysis of space-time surface plasmon polariton wave packet excited by light irradiation on nanobeam structure

Naoki Ichiji, Murat Yessenov, Kenneth Schepler, Ayman Abouraddy, Atsushi Kubo

Proceedings Volume 11999, 1199904 (2022) https://doi.org/10.1117/12.2607690

KEYWORDS: Light wave propagation, Finite-difference time-domain method, Metals, Dispersion, Wave propagation, Free space, Surface plasmon polaritons, Gold, Phase velocity

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SPIE Journal Paper | 19 May 2021 Open Access

Re-absorption and nonradiative energy transfer in vibronic laser gain media

Jonathan Evans, Thomas Harris, Eric Turner, Martin Kimani, J. Matthew Mann, Ronald Stites, Gary Cook, Kenneth Schepler

OE, Vol. 60, Issue 05, 056103, (May 2021) https://doi.org/10.1117/12.10.1117/1.OE.60.5.056103

KEYWORDS: Energy transfer, Luminescence, Ions, Optical engineering, Iron, Transition metals, Data modeling, Systems modeling, Crystals, Mid-IR

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Proceedings Article | 12 April 2021 Presentation

Extended propagation of sub-mm incoherent space-time fields over 110 m distance

Murat Yessenov, Layton Hall, Basanta Bhaduri, Monjurul Meem, Kenneth Schepler, Rajesh Menon, Martin Richardson, Ayman Abouraddy

Proceedings Volume 11724, 1172409 (2021) https://doi.org/10.1117/12.2587827

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Proceedings Article | 12 April 2021 Presentation + Paper

Guideless optical sensing using space-time surface plasmon polaritons

Kenneth Schepler, Murat Yessenov, Yertay Zhiyenbayev, Ayman Abouraddy

Proceedings Volume 11739, 1173904 (2021) https://doi.org/10.1117/12.2588229

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Proceedings Article | 21 February 2020 Presentation + Paper

Crystal host engineering for transition metal lasers

Jonathan Evans, Sean McDaniel, Ronald Stites, Patrick Berry, Gary Cook, Thomas Harris, Kenneth Schepler

Proceedings Volume 11259, 112590C (2020) https://doi.org/10.1117/12.2553388

KEYWORDS: Ions, Crystals, Iron, Absorption, Chromium, Laser crystals, Transition metals, Tellurium, Continuous wave operation

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SPIE Journal Paper | 19 November 2018

Practical limits of power transmission through single-mode chalcogenide fibers

Alex Sincore, Justin Cook, Felix Tan, Ayman Abouraddy, Martin Richardson, Kenneth Schepler

OE, Vol. 57, Issue 11, 111807, (November 2018) https://doi.org/10.1117/12.10.1117/1.OE.57.11.111807

KEYWORDS: Optical fibers, Chalcogenides, Glasses, Quantum cascade lasers, Raman spectroscopy, Arsenic, Optical engineering, Nonlinear optics, Single mode fibers, Polishing

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Proceedings Article | 14 May 2018 Presentation

Chalcogenide fibers for improved reliability of active infrared sensing systems (Conference Presentation)

Justin Cook, Alex Sincore, Felix Tan, Ahmed El Halawany, Anthony Riggins, Lawrence Shah, Ayman Abouraddy, Martin Richardson, Kenneth Schepler

Proceedings Volume 10637, 106370T (2018) https://doi.org/10.1117/12.2305229

KEYWORDS: Optical fibers, Chalcogenides, Sensing systems, Reliability, Infrared detection, Defense and security, Mirrors, Modulators, Infrared sensors, Sensors

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Proceedings Article | 20 February 2018 Paper

Mid-infrared performance of single mode chalcogenide fibers

Justin Cook, Alex Sincore, Felix Tan, Ahmed El Halawany, Anthony Riggins, Lawrence Shah, Ayman Abouraddy, Martin Richardson, Kenneth Schepler

Proceedings Volume 10513, 105131H (2018) https://doi.org/10.1117/12.2290127

KEYWORDS: Optical fibers, Quantum cascade lasers, Cladding, Polymers, Glasses, Mid-IR, Chalcogenides, Solids, Fiber lasers, Laser systems engineering

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Proceedings Article | 15 February 2018 Presentation + Paper

Re-absorption and nonradiative energy transfer in vibronic laser gain media

Jonathan Evans, Thomas Harris, Eric Turner, Martin Kimani, J. Matthew Mann, Ronald Stites, Gary Cook, Kenneth Schepler

Proceedings Volume 10511, 105110I (2018) https://doi.org/10.1117/12.2290822

KEYWORDS: Luminescence, Energy transfer, Systems modeling, Transition metals, Crystals, Mid-IR, Infrared lasers

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SPIE Journal Paper | 13 October 2015

CO₂ sensing with a 1.432 μm Nd:YAlO₃ laser

Simon Vana, William Grossman, Kenneth Schepler, Dennis Killinger, Steven Jarrett, John Black, Larry Myers

OE, Vol. 54, Issue 10, 106104, (October 2015) https://doi.org/10.1117/12.10.1117/1.OE.54.10.106104

KEYWORDS: Carbon monoxide, Absorption, Neodymium, Gas lasers, Carbon dioxide lasers, Atmospheric sensing, Atmospheric laser remote sensing, YAG lasers, Carbon dioxide

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Proceedings Article | 27 February 2015 Paper

Surface characterization studies of orientation patterned ZnSe doped with Cr2+

B. Rami Reddy, Kenneth Schepler, Elizabeth Moore, John Hoelscher, Shiva Vangala, Bruce Claflin, Narsingh Singh, Jonathan Evans, Patrick Berry

Proceedings Volume 9347, 93471M (2015) https://doi.org/10.1117/12.2076075

KEYWORDS: Raman spectroscopy, Chromium, Luminescence, Electrons, Statistical analysis, Crystals, Ions, Scanning electron microscopy, Phonons, Selenium

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Proceedings Article | 20 February 2015 Paper

Gain-switched operation of ultrafast laser inscribed waveguides in Cr:ZnSe

Sean McDaniel, Patrick Berry, Kenneth Schepler, John Macdonald, Stephen Beecher, Ajoy Kar

Proceedings Volume 9342, 93420E (2015) https://doi.org/10.1117/12.2079396

KEYWORDS: Waveguides, Pulsed laser operation, Waveguide lasers, Ultrafast lasers, Absorption, Continuous wave operation, Wave propagation, Mirrors, Crystals, Sensors

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Proceedings Article | 26 March 2013 Paper

A broadly tunable continuous-wave Fe:ZnSe laser

Jonathan Evans, Patrick Berry, Kenneth Schepler

Proceedings Volume 8599, 85990C (2013) https://doi.org/10.1117/12.2002442

KEYWORDS: Continuous wave operation, Ions, Mirrors, Optical testing, Quality measurement, Beam quality measurement, Absorption, Tunable lasers, Mid-IR

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Proceedings Article | 26 March 2013 Paper

Gain-switched single-pass Cr:ZnSe amplifier

Sean McDaniel, Patrick Berry, Kenneth Schepler

Proceedings Volume 8599, 85990D (2013) https://doi.org/10.1117/12.2004753

KEYWORDS: Amplifiers, Optical amplifiers, Crystals, Tunable lasers, Continuous wave operation, Absorption, Mirrors, Q switching, Monochromators

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Proceedings Article | 12 March 2013 Paper

Progress in orientation-patterned GaP for next-generation nonlinear optical devices

V. Tassev, M. Snure, R. Peterson, K. Schepler, R. Bedford, M. Mann, S. Vangala, W. Goodhue, A. Lin, J. Harris, M. Fejer, Peter Schunemann

Proceedings Volume 8604, 86040V (2013) https://doi.org/10.1117/12.2008057

KEYWORDS: Semiconducting wafers, Absorption, Crystals, Wafer bonding, Frequency conversion, Mid-IR, Nonlinear crystals, Gallium arsenide, Quartz, Vapor phase epitaxy

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Proceedings Article | 16 February 2011 Paper

Energy scaling of nanosecond gain-switched Cr2+:ZnSe lasers

V. Fedorov, I. Moskalev, M. Mirov, S. Mirov, T. Wagner, M. Bohn, P. Berry, K. Schepler

Proceedings Volume 7912, 79121E (2011) https://doi.org/10.1117/12.876700

KEYWORDS: Nd:YAG lasers, Absorption, Raman spectroscopy, Crystals, Pulsed laser operation, Q switched lasers, Reflectivity, Chromium, Ions, Continuous wave operation

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Proceedings Article | 17 February 2010 Paper

Cr[sup]2+[/sup]:ZnSe master oscillator/power amplifier for improved power scaling

Patrick Berry, Kenneth Schepler

Proceedings Volume 7578, 75781L (2010) https://doi.org/10.1117/12.858798

KEYWORDS: Amplifiers, Molybdenum, Absorption, Oscillators, Optical amplifiers, Performance modeling, Chromium, Mid-IR, Data modeling, Continuous wave operation

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SPIE Journal Paper | 1 November 2009

Optical probes of orientation-patterned ZnSe quasi-phase-matched devices

Gary Kanner, Mike Marable, Narsingh Singh, Andre Berghmans, David Kahler, Brian Wagner, A. Lin, Martin Fejer, James Harris, Kenneth Schepler

OE, Vol. 48, Issue 11, 114201, (November 2009) https://doi.org/10.1117/12.10.1117/1.3257266

KEYWORDS: Second-harmonic generation, Gallium arsenide, Crystals, Signal attenuation, Frequency conversion, Long wavelength infrared, Infrared radiation, Mid-IR, Optical engineering, Zinc

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Proceedings Article | 24 February 2009 Paper

Calculation of quasi phasematching in optical parametric GaAs/AlGaAs waveguides

Kenneth Schepler, Justin Spring

Proceedings Volume 7197, 719708 (2009) https://doi.org/10.1117/12.808035

KEYWORDS: Waveguides, Gallium arsenide, Optical parametric oscillators, Refractive index, Aluminum, Cladding, Interfaces, Nonlinear frequency conversion, Frequency conversion, Second-harmonic generation

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Proceedings Article | 13 February 2008 Paper

Optical probes of orientation-patterned ZnSe quasi-phase-matched devices

G. Kanner, M. Marable, N. Singh, A. Berghmans, D. Kahler, B. Wagner, A. Lin, M. Fejer, J. Harris, K. Schepler

Proceedings Volume 6875, 68750I (2008) https://doi.org/10.1117/12.768553

KEYWORDS: Second-harmonic generation, Crystals, Gallium arsenide, Signal attenuation, Frequency conversion, Long wavelength infrared, Infrared radiation, Mid-IR, Nonlinear optics, Single crystal X-ray diffraction

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Proceedings Article | 10 May 2007 Paper

Room-temperature, near IR fluorescence of high optical quality KTP

S. Hegde, K. Schepler, R. Peterson, D. Zelmon

Proceedings Volume 6552, 65520V (2007) https://doi.org/10.1117/12.718475

KEYWORDS: Luminescence, Ferroelectric materials, Spectroscopy, Crystals, Polishing, Nd:YAG lasers, Optics manufacturing, Second-harmonic generation, Absorption, Photography

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Proceedings Article | 19 February 2007 Paper

Mid-IR transition metal lasers

Kenneth Schepler

Proceedings Volume 6451, 64510K (2007) https://doi.org/10.1117/12.718291

KEYWORDS: Chromium, Ions, Transition metals, Crystals, Absorption, Laser development, Laser applications, Iron, Infrared lasers, Infrared radiation

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Proceedings Article | 28 February 2006 Paper

Modeling of time-dependent thermal effects in Cr²⁺-doped zinc selenide thin disks

Patrick Berry, Kenneth Schepler

Proceedings Volume 6100, 61000X (2006) https://doi.org/10.1117/12.644689

KEYWORDS: Chromium, Thermal modeling, Thermal effects, Zinc, Absorption, Q switching, Pulsed laser operation, Q switched lasers, Solid modeling

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Proceedings Article | 1 June 2005 Paper

Processing technology, laser, optical and thermal properties of ceramic laser gain materials

Mark Dubinskii, Larry Merkle, John Goff, Gregory Quarles, Vida Castillo, Kenneth Schepler, David Zelmon, Shekhar Guha, Leonel Gonzalez, Matthew Rickey, Julie Lee, S. Hegde, John Dumm, Gary Messing, Sang-Ho Lee

Proceedings Volume 5792, (2005) https://doi.org/10.1117/12.602879

KEYWORDS: Ceramics, Nd:YAG lasers, Neodymium, Absorption, Crystals, YAG lasers, Laser applications, Scattering, Laser processing, Laser damage threshold

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Proceedings Article | 21 February 2005 Paper

Optical properties of Nd-doped ceramic yttrium aluminum garnet

David Zelmon, Kenneth Schepler, Shekhar Guha, Daniel Rush, Shrikrishna Hegde, Leonel Gonzalez, Julie Lee

Proceedings Volume 5647, (2005) https://doi.org/10.1117/12.584641

KEYWORDS: Ceramics, Neodymium, YAG lasers, Crystals, Crystallography, Scattering, Thermal optics, Absorption, Doping, Refractive index

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Proceedings Article | 23 March 2000 Paper

Elliptical energy scaling with monolithic PPLN OPOs

Mark Missey, Vincent Dominic, Peter Powers, Kenneth Schepler

Proceedings Volume 3928, (2000) https://doi.org/10.1117/12.379922

KEYWORDS: Optical parametric oscillators, Crystals, Near field, Laser crystals, Lithium niobate, Nonlinear crystals, Nonlinear optics, Complex systems, Floods, Phase matching

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Proceedings Article | 23 March 2000 Paper

Progress in periodic poling of ferroelectrics: real-time visualization of domain formation in periodically poled lithium niobate

Mark Missey, Steve Russell, Vincent Dominic, Robert Batchko, Kenneth Schepler

Proceedings Volume 3928, (2000) https://doi.org/10.1117/12.379917

KEYWORDS: Crystals, Visualization, Lithium niobate, Scattering, Video, Polarizers, Light scattering, Photoresist materials, Information visualization, Optical lithography

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Proceedings Article | 28 June 1999 Paper

Power and energy scaling for quasi-phase-matched OPOs

Kenneth Schepler, Mark Missey, Ned O'Brien, Peter Powers

Proceedings Volume 3793, (1999) https://doi.org/10.1117/12.351414

KEYWORDS: Optical parametric oscillators, Crystals, Resonators, Laser crystals, Ferroelectric materials, Semiconducting wafers, Nonlinear crystals, Lithium niobate, Pulsed laser operation, Interfaces

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Proceedings Article | 1 November 1997 Paper

Excited-state absorption and stimulated emission in Cr4+-doped oxide crystals

Stefan Kueck, S. Hartung, Kenneth Schepler, Klaus Petermann, Guenter Huber

Proceedings Volume 3176, (1997) https://doi.org/10.1117/12.293480

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Proceedings Article | 17 June 1993 Paper

Passive Q-switching and mode locking of 2-um lasers

Kenneth Schepler, Brian Smith, Frank Heine, Guenter Huber

Proceedings Volume 1864, (1993) https://doi.org/10.1117/12.146879

KEYWORDS: Mode locking, Optical parametric oscillators, Semiconductor lasers, Resonators, Q switches, Solid state lasers, Semiconductors, Mid-IR, Q switched lasers, Modulation

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Showing 5 of 32 publications

Proceedings Volume Editor (8)

SPIE Conference Volume | 23 April 2021

Nonlinear Frequency Generation and Conversion: Materials and Devices XX

SPIE Conference Volume | 14 April 2020

Nonlinear Frequency Generation and Conversion: Materials and Devices XIX

SPIE Conference Volume | 7 June 2019

Nonlinear Frequency Generation and Conversion: Materials and Devices XVIII

SPIE Conference Volume | 14 May 2018

Nonlinear Frequency Generation and Conversion: Materials and Devices XVII

SPIE Conference Volume | 17 May 2017

Nonlinear Frequency Generation and Conversion: Materials and Devices XVI

Showing 5 of 8 publications

Conference Committee Involvement (24)

Nonlinear Frequency Generation and Conversion: Materials and Devices XXIV

28 January 2025 | San Francisco, California, United States

Nonlinear Frequency Generation and Conversion: Materials and Devices XXIII

29 January 2024 | San Francisco, California, United States

Nonlinear Frequency Generation and Conversion: Materials and Devices XXII

30 January 2023 | San Francisco, California, United States

Nonlinear Frequency Generation and Conversion: Materials and Devices XXI

24 January 2022 | San Francisco, California, United States

Nonlinear Frequency Generation and Conversion: Materials and Devices XX

6 March 2021 | Online Only, California, United States

Nonlinear Frequency Generation and Conversion: Materials and Devices XIX

3 February 2020 | San Francisco, California, United States

Nonlinear Frequency Generation and Conversion: Materials and Devices XVIII

5 February 2019 | San Francisco, California, United States

Nonlinear Frequency Generation and Conversion: Materials and Devices XVII

29 January 2018 | San Francisco, California, United States

Nonlinear Frequency Generation and Conversion: Materials and Devices XVI

30 January 2017 | San Francisco, California, United States

Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications XV

15 February 2016 | San Francisco, California, United States

Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications XIV

9 February 2015 | San Francisco, California, United States

Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications XIII

4 February 2014 | San Francisco, California, United States

Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications XII

5 February 2013 | San Francisco, California, United States

Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications XI

24 January 2012 | San Francisco, California, United States

Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications X

24 January 2011 | San Francisco, California, United States

Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications IX

25 January 2010 | San Francisco, California, United States

Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VIII

27 January 2009 | San Jose, California, United States

Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VII

22 January 2008 | San Jose, California, United States

Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VI

23 January 2007 | San Jose, California, United States

Laser Sources and Enabling Materials

13 June 2006 | Dayton, Ohio, United States

Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications V

25 January 2006 | San Jose, California, United States

Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications IV

26 January 2005 | San Jose, California, United States

Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications III

26 January 2004 | San Jose, Ca, United States

Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications II

27 January 2003 | San Jose, CA, United States

Showing 5 of 24 Conference Committees

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