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S. G. Criswell, N. A. Mahadik, J. C. Gallagher, J. Barnett, L. Kim, M. Ghorbani, B. Kamaliya, N. D. Bassim, T. Tauber, J. D. Caldwell, “Nanoscale Infrared Spectroscopic Characterization of Extended Defects in 4H-Silicon Carbide.” Nano Letters 24, 114-121 (2024).

H. Wang, A. Kumar, S. Dai, X. Lin, Z. Jacob, S-H. Oh, V. Menon, E. Narimanov, Y. D. Kim, J-P. Wang, P. Avouris, L. M. Moreno, J. D. Caldwell, T. Low, “Planar hyperbolic polaritons in 2D van der Waals materials.” Nature Communications 15, 69 (2024).

S. Yang, M. He, C. Hong, J. Norlander, J-P. Maria, J. D. Caldwell, J. C. Ndukaife, “Single-peak and narrow-band mid-infrared thermal emitters driven by mirror-coupled plasmonic quasi-BIC metasurfaces.” Optica 11, 305-314 (2024).

A. I. F. Tresguerres-Mata, C. Lanza, J. Taboada-Gutierrez, J. R. Matson, G. Alvarez-Perez, M. Isobe, A. T. Martin-Luengo, J. Duan, S. Partel, M. Velez, J. Martin-Sanchez, A. Y. Nikitin, J. D. Caldwell, P. Alonso-Gonzalez, “Observation of naturally canalized phonon polaritons in LiV2O5 thin layers.” Nature Communications 15, 2696 (2024).

A. Senarath, S. Islam, A. Sengupta, M. W. McCurdy. T. Anderson, A. Jacobs, R. Kaplar, D. R. Ball, E. X. Zhang, S. T. Pantelides, R. A. Reed, M. A. Ebrish, D. M. Fleetwood, J. D. Caldwell, R. D. Schrimpf, “Single Event Burnout in Homojunction GaN PiN Diodes with Hybird Edge Termination Design.” Applied Physics Letters 124, 132101 (2024).


G. Hu, W. Ma, D. Hu, J. Wu, C. Zheng, K. Liu, X. Zhang, X. Ni, J. Chhen, Q. Dai, J. D. Caldwell, A. Paarmann, A. Alù, P. Li, C-W. Qiu, “Real-space nanoimaging of hyperbolic shear polaritons in a monoclinic crystal.” Nature Nanotechnology 18, 64–70 (2023).

M. He, J. R. Nolen, J. Nordlander, A. Cleri, G. Lu, T. Arnaud, N. S. McIlwaine, K. Diaz-Granados, E. Janzen, T. G. Folland, J. H. Edgar, J-P. Maria, J. D. Caldwell, “Coupled Tamm Phonon and Plasmon Polaritons for Designer Planar Multiresonance Absorbers.” Advanced Materials 35 (20), 2209909 (2023).

M. He, J. R. Matson, M. Yu, A. Cleri, S. S. Sunku, E. Janzen, S. Mastel, T. G. Folland, J. H. Edgar, D. N. Basov, J-P. Maria, S. Law, J. D. Caldwell, “Polariton design and modulation via van der Waals/doped semiconductor heterostructures.” Nature communications 14 (1), 7965 (2023).

A. Giri, S. G. Walton, J. Tomko, N. Bhatt, M. J. Johnson, D. R. Boris, G. Lu, J. D. Caldwell, O. V. Prezhdo, P. E. Hopkins, “Ultrafast and Nanoscale Energy Transduction Mechanisms and Coupled Thermal Transport across Interfaces.” ACS nano 17 (15), 14253-14282 (2023).

K. Diaz-Granados, W. Ma, G. Lu, J. Matson, P. Li, J. D. Caldwell, “Tailored thermal emission in bulk calcite through optic axis reorientation.” Nanophotonics 12 (14), 2929-2936 (2023).

G. Lu, Z. Pan, C. R. Gubbin, R. A. Kowalski, S. De Liberato, D. Li, J. D. Caldwell, “Launching and manipulation of higher‐order in‐plane hyperbolic phonon polaritons in low‐dimensional heterostructures.” Advanced Materials 35 2300301 (2023).

A. A. Shults, G. Lu, J. D. Caldwell, J. E. Macdonald, “Role of carboxylates in the phase termination of metal sulfide nanoparticles,” Nanoscale Horizons 8, 1386-1394 (2023). – 2024 Nanoscale Horizons HOT article.

W. Huang, T. G. Folland, F. Sun, Z. Zhang, N. Xu, Q. Xing, J. Jiang, J. D. Caldwell, H. Yan, S. Deng, “In-plane hyperbolic polariton tuners in terahertz and long-wave infrared regimes,” Nature Communications 14, 2716 (2023).

J. Matson, S. Wasserroth, X. Ni, M. Obst, K. Diaz-Granados, G. Carini, E. M. Renzi, E. Galiffi, T. G. Folland, L. M. Eng, J. M. Klopf, S. Mastel, S, Armster, V. Gambin, M. Wolf, S. C. Kehr, A. Alù, A. Paarmann, J. D. Caldwell, “Controlling the propagation asymmetry of hyperbolic shear polaritons in beta-gallium oxide,” Nature Communications 14, 5240 (2023).

A. J. Cleri, J. R. Nolen, K. G. Wirth, M. He, E. L. Runnerstrom, K. P. Kelley, J. Nordlander, T. Taubner, T. G. Folland, J-P. Maria, J. D. Caldwell, “Tunable, Homoepitaxial Hyperbolic Metamaterials Enabled by High Mobility CdO,” Advnaces Optical Materials 11, 2202137 (2023).

J. Liang, K. Ma, X. Zhao, G. Lu, J. Riffle, C. M. Andrei, C. Dong, T. Furkan, S. Rajabpour, R. R. Prabhakar, J. A. Robinson, V. Magdaleno, Jr., Q. T. Trinh, J. W. Ager, M. Salmeron, S. Aloni, J. D. Caldwell, S. Hollen, H. A. Bechtel, N. D. Bassim, M. P. Sherburne, Z. Y. Al Balushi, “Elucidating the Mechanism of Large Phosphate Molecule Intercalation Through Graphene-Substrate Heterointerfaces.” ACS Applied Materials & Interfaces 15 (40), 47649-47660 (2023).

Z. Pan, G. Lu, X. Li, J. R. McBride, R. Juneja, M. Long, L. Lindsay, J. D. Caldwell, D. Li, “Remarkable heat conduction mediated by non-equilibrium phonon polaritons.” Nature 623, 307-312 (2023).

M. He, L. Hoogendoorn, S. Dixit, Z. Pan, G. Lu, K. Diaz-Granados, D. Li, J. D. Caldwell, “Guided Polaritons along the Forbidden Direction in MoO3 with Geometrical Confinement.” Nano Letters, 23 (11), 5035-5041 (2023).

J. R. Matson, Md N. Alam, G. Varnavides, P. Sohr, S. Knight, V. Darakchieva, M. Stokey, M. Schubert, A. Said, T. Beechem, P. Narang, S. Law, J, D. Caldwell, “The Role of Optical Phonon Confinement in The Infrared Dielectric Response of III-V Superlattices.” Advanced Materials 36, 2305106 (2023).


Kowalski, R. A.Nolen, J. R.Varnavides, G.Silva, S. M.Allen, J. E.Ciccarino, C. J.Juraschek, D. M.Law, S.Narang, P.Caldwell, J. D.Mid- to Far-Infrared Anisotropic Dielectric Function of HfS2 and HfSe2Adv. Optical Mater (2022).

S. Yang, M. He, C. Hong, J. D. Caldwell,  J. C. Ndukaife. “Engineering Electromagnetic Field Distribution and Resonance Quality Factor Using Slotted Quasi-BIC Metasurfaces”,  Nano Letters (2022).

H. Zheng, M. He, Y. Zhou, I. I. Kravchenko, J. D. Caldwell, J. G. Valentine. “Compound Meta-Optics for Complete and Loss-Less Field Control”, ACS nano (2022).
M. He, T.G. Folland, P. Alonso-Gonzalez, S. De Liberato, A. Paarmann, J.D. Caldwell, “Exploiting Reductions in Material Symmetry and Hybridization for Infrared Nanophotonics”, ACS Photonics (2022).

N. Passler, X. Ni, G. Hu, J.R. Matson, G. Carini, M. Wolf, M. Schubert, A. Alu, J.D. Caldwell, T.G. Folland, A. Paarmann, “Hyperbolic Shear Polaritons in Low-Symmetry Crystals”, Nature, 602, pages595–600 (2022).

E.R. Hoglund, D.-L. Bao, A. O’Hara, J.A. Hachtel, Z.T. Piontkowski, J.R. Matson, A.K. Yadav, R.C. Haisimaier, R. Engel-Herbert, J.F. Ihlefeld, J. Ravichandran, R. Ramesh, J.D. Caldwell, T.E. Beechem, S.T. Pantelides, P.E. Hopkins, J.M. Howe, “Nanoscale Phonon Spectroscopy Reveals Emergent Interface Vibrational Structure of Superlattices”, Nature, (2021).


G. Lu, C.R. Gubbin, J.R. Nolen, T.G. Folland, K. Diaz-Granados, I.I. Kravchenko, J. Spencer, M.J. Tadjer, O.J. Glembocki, S. De Liberato, J.D. Caldwell, “Collective Phonon-Polaritonic Modes in SiC Subarrays” ACS Nano, (2021).

M. He, J.R. Nolen, J. Nordlander, A. Cleri, N.S. McIlwaine, Y. Tang, G. Lu, T.G. Folland, B.A. Landman, J.P. Maria, J.D. Caldwell, “Deterministic Inverse Design of Lithography-Free, Wavelength-Selective Tamm Plasmon Thermal Emitters”, Nature Materials, 20 1663-1669 (2021).

G. Pavlidis, J.J. Schwartz, J.R. Matson, T.G. Folland, S. Liu, J.H. Edgar, J.D. Caldwell, A. Centrone, “Experimental Confirmation of Hyperbolic Phonon Polaritons Long-Lifetimes in Monoisotopic (10B) Hexagonal Boron Nitride at Room Temperature”, APL Materials, 9, 091109 (2021).

M. He, G.R.S. Iyer, S. Aarav, S.S. Sunku, A.J. Giles, T.G. Folland, N. Sharac, X. Sun, J.R. Matson, S. Liu, J.H. Edgar, J.W. Fleischer, D.N. Basov, J.D. Caldwell, “Ultra-high-resolution, Label-free Hyperlens Imaging in the Mid-IR” Nano Letters, 21(19), 7921-7928 (2021).

P. Rufangura, I. Khodasevych, A. Agrawal, M. Bosi, T.G. Folland, J.D. Caldwell, F. Iacopi, “Enhanced Absorption with Graphene-Coated Silicon Carbide Nanowires for Mid-Infrared Nanophotonics”, Nanomaterials 11(9), 2339 (2021).

G.X. Ni, A.S. McLeod, Z. Sun, J.R. Matson, C.F.B. Lo, D.A. Rhodes, F.L. Ruta, S.L. Moore, R.A. Vitalone, R. Cusco, L. Artus, L. Xiong, C.R. Dean, J.C. Hone, A.J. Mills, M.M. Fogler, J.H. Edgar, J.D. Caldwell, D.N. Basov, “Long-lived Phonon Polaritons in Hyperbolic Materials” Nano Letters, 21, 5767-5773 (2021).

M. He, L. Lindsay, T.G. Folland, T.E. Beechem, J.R. Matson, K. Watanabe, A. Zavalin, A. Ueda, W.E. Collins, T. Taniguchi, J.D. Caldwell, “Phonon Engineering of Boron Nitride via Isotopic Enrichment” Journal of Materials Research, 36, 4394-4403 (2021).

G. Lu, M. Tadjer, J.D. Caldwell, T.G. Folland, “Spatial and spectral engineering of superstructure grating thermal emitters” APL, 118, 141102 (2021).

W.C. Huang, F.S. Sun, Z.B. Zheng, T.G. Folland, X.X. Chen, H.Z. Liao, N.S. Xu, J.D. Caldwell, H.J. Chen, S.Z. Deng, “van der Waals phonon polariton microstructures for configurable infrared electromagnetic field localizations” Adv. Sci., 8(13), 2004872 (2021).

G. Lu, C.R. Gubbin, J.R. Nolen, T.G. Folland, M.J. Tadjer, S. De Liberato, J.D. Caldwell, “Engineering the Spectral and Spatial Dispersion of Thermal Emission through Polariton-Phonon Strong Coupling”, Nano Letters, 21, 1831-1838 (2021).

M. He, S.I. Halimi, T.G. Folland, S.S. Sunku, S. Liu, J.H. Edgar, D.N Basov, S.M. Weiss, J.D. Caldwell, “Guided Mid-IR and Near-IR Light within a Hybrid Hyperbolic-Material/Silicon Waveguide Heterostructure”, Advanced Materials, 33(11) 2004305 (2021).

A. Cleri, J. Tomko, K. Quiambao-Tomko, M.V. Imperatore, Y. Zhu, J.R. Nolen, J. Nordlander, J.D. Caldwell, Z. Mao, N.C. Giebink, K.P. Kelley, E. Runnerstrom, P. Hopkins, J.P. Maria, “Mid-wave to Near-IR Epsilon-Near-Zero Plasmon Modes in In-doped CdO”, Phys. Rev. Mat., 5 035202 (2021).

A. Livingood, J.R. Nolen, T.G. Folland, L. Potechin, S. Criswell, J.P. Maria, C. Shelton, E. Sachet, J.D. Caldwell, “Filterless Non-Dispersive Infrared Sensing using Cadmium Oxide Narrowband Infrared Emitting Metamaterials (NIREMs)”, ACS Photonics, 8, 472-480 (2021).

D. Yoo, F. de Leon-Perez, I.-H. Lee, D.A. Mohr, M. Pelton, J.D. Caldwell, L. Martin-Moreno, S.-H. Oh, “Ultrastrong plasmon-phonon coupling via epsilon-near-zero nanocavities”, Nature Photonics, 15, 125-130 (2021).

J.A. Tomko, E.L. Runnerstrom, Y.-S. Wang, J.R. Nolen, D.H. Olson, K.P. Kelley, A. Cleri, J. Nordlander, J.D. Caldwell, O.V. Prezhdo, J.P. Maria, P.E. Hopkins, “Long-lived modulation of plasmonic absorption by ballistic thermal injection”, Nature Nano, 16, 47-51 (2021).


Fali, S. Gamage, M. Howard, T.G. Folland, T. Tiwald, K. Bolotin, J.D. Caldwell, Y. Abate, “Nanoscale Spectroscopy of Dielectric Properties of Mica”, ACS Photonics, in press (2020).

D. Yoo, F. de Leon-Perez, I.-H. Lee, D.A. Mohr, M. Pelton, J.D. Caldwell, L. Martin-Moreno, S.-H. Oh, “Ultrastrong plasmon-phonon coupling via epsilon-near-zero nanocavities”, Nature Photonics, (2020).

J. A. Tomko, E.L. Runnerstrom, Y.-S. Wang, J.R. Nolen, D.H. Olson, K.P. Kelley, A. Cleri, J. Nordlander, J.D. Caldwell, O.V. Prezhdo, J.P. Maria, P.E. Hopkins, “Long-lived modulation of plasmonic absorption by ballistic thermal injection”, Nature Nano, (2020).

S.A. Dereshgi, T.G. Folland, A. Murthy, X. Song, I. Tanriover, V.P. Dravid, J.D. Caldwell, K. Aydin, “Lithography-free, planar IR polarization filters and converters via biaxial phonons in a-MoO3 flakes integrated into Fabry-Perot cavities”, Nat. Comm. 11(1) 1-9 (2020).

I.H. Lee, M. He, X. Zhang, Y. Luo, S. Liu, J.H. Edgar, K. Wang, Ph. Avouris, T. Low, J.D. Caldwell, S.H. Oh, “Image Polaritons in Boron Nitride for Extreme Polariton Confinement with Low Losses”, Nature Comm, 11, 3649 (2020).

P. Rufangura, T.G. Folland, A. Agrawal, J. Caldwell, F. Iacopi, “Towards Low-Loss on-chip nanophotonics with graphene and silicon carbide: a review” J. Phys Mater., 3, 032005 (2020).

G. Ramer, M. Tuteja, J.R. Matson, M. Davanco, T.G. Folland, A. Kretinin, T. Taniguchi, K. Watanabe, K.S. Novoselov, J.D. Caldwell, A. Centrone, “High-Q dark hyperbolic phonon-polaritons in hexagonal boron nitride nanostructures”, Nanophotonics, 9(6), 1457 (2020).

G. Lu, J.R. Nolen, T.G. Folland, M. Tadjer, D.G. Walker, J.D. Caldwell, “Narrowband Polaritonic Thermal Emitters Driven by Waste-Heat” ACS Omega 5(19), 10900-10908, DOI: 10.1021/acsomega.0c00600 (2020). – Supplemental Cover May 2020 Edition ACS Omega

Alvarez-Perez, T.G. Folland, I. Errea, J. Taboada-Gutierrez, J. Duan, J. Martin-Sanchez, A.I.F. Tresguerres-Mata, J.R. Matson, A. Bylinkin, M. He, W. Ma, Q. Bao, J.D. Caldwell, A.Y. Nikitin, P. Alonso-Gonzalez, “Infrared Permittivity of the biaxial van der Waals semiconductor α-MoO3 from near- and far-field correlative studies”, Advanced Materials, 32, 1908176 (2020). – Back Cover July 2020 Edition Advanced Material

J.R. Nolen, E.L. Runnerstrom, K.P. Kelley, T.S. Luk, T.G. Folland, J.P. Maria, J.D. Caldwell, “Ultraviolet to Far-Infrared Optical Properties of n-doped Cadmium Oxide Thin Films”, Physical Review Materials, 4, 025202 (2020).

T.G. Folland, G. Lu, A. Bruncz, J.R. Nolen, M. Tadjer, J.D. Caldwell, “Vibrational Coupling to Epsilon-Near-Zero Waveguide Modes” ACS Photonics, 7(3) 614-621 (2020).

A. Dunkelberger, D. Ratchford, A.B. Grafton, V.M. Breslin, E.S. Ryland, D.S. Katzer, K.P. Fears, R. J. Weiblen, I. Vurgaftman, A.J. Giles, C.T. Ellis, J.G. Tischler, J.D. Caldwell, J.C. Owrutsky, “Ultrafast Active Tuning of the Berreman Mode”, ACS Photonics., 7(1), 279-287 (2020).

B. Hauer, C.E. Marvinney, M. Lewin, N. Mahadik, J. Hite, N.D. Bassim, A.J. Giles, R.E. Stahlbush, J.D. Caldwell, T. Taubner, “Exploiting phonon-resonant near-field interactions for the nanoscale investigation of extended defects”, Adv. Func. Materials, 30, 1907357 (2020).

A. Howes, J.R. Nolen, J.D. Caldwell and J. Valentine: Near-Unity and Narrowband Thermal Emissivity in Balanced Dielectric Metasurfaces. Advanced Optical Materials 8, 1901470 (2020).

2010 – 2019

2003 – 2009