Zobrazeno 1 - 10
of 261
pro vyhledávání: '"Joshua D. Caldwell"'
Autor:
Ana I. F. Tresguerres-Mata, Christian Lanza, Javier Taboada-Gutiérrez, Joseph. R. Matson, Gonzalo Álvarez-Pérez, Masahiko Isobe, Aitana Tarazaga Martín-Luengo, Jiahua Duan, Stefan Partel, María Vélez, Javier Martín-Sánchez, Alexey Y. Nikitin, Joshua D. Caldwell, Pablo Alonso-González
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-10 (2024)
Abstract Polariton canalization is characterized by intrinsic collimation of energy flow along a single crystalline axis. This optical phenomenon has been experimentally demonstrated at the nanoscale by stacking and twisting van der Waals (vdW) layer
Externí odkaz:
https://doaj.org/article/5039d75f26b04dcda9edb93fae359541
Autor:
Mingze He, Joseph R. Matson, Mingyu Yu, Angela Cleri, Sai S. Sunku, Eli Janzen, Stefan Mastel, Thomas G. Folland, James H. Edgar, D. N. Basov, Jon-Paul Maria, Stephanie Law, Joshua D. Caldwell
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-8 (2023)
Abstract Hyperbolic phonon polaritons (HPhPs) can be supported in materials where the real parts of their permittivities along different directions are opposite in sign. HPhPs offer confinements of long-wavelength light to deeply subdiffractional sca
Externí odkaz:
https://doaj.org/article/49caab8dfe6542eb920d3b8f72bf3934
Autor:
Joseph Matson, Sören Wasserroth, Xiang Ni, Maximilian Obst, Katja Diaz-Granados, Giulia Carini, Enrico Maria Renzi, Emanuele Galiffi, Thomas G. Folland, Lukas M. Eng, J. Michael Klopf, Stefan Mastel, Sean Armster, Vincent Gambin, Martin Wolf, Susanne C. Kehr, Andrea Alù, Alexander Paarmann, Joshua D. Caldwell
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-8 (2023)
Abstract Structural anisotropy in crystals is crucial for controlling light propagation, particularly in the infrared spectral regime where optical frequencies overlap with crystalline lattice resonances, enabling light-matter coupled quasiparticles
Externí odkaz:
https://doaj.org/article/6aad7bb7628b4b0ab964f8e41dbef747
Autor:
Wuchao Huang, Thomas G. Folland, Fengsheng Sun, Zebo Zheng, Ningsheng Xu, Qiaoxia Xing, Jingyao Jiang, Huanjun Chen, Joshua D. Caldwell, Hugen Yan, Shaozhi Deng
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-12 (2023)
Abstract One of the main bottlenecks in the development of terahertz (THz) and long-wave infrared (LWIR) technologies is the limited intrinsic response of traditional materials. Hyperbolic phonon polaritons (HPhPs) of van der Waals semiconductors cou
Externí odkaz:
https://doaj.org/article/fdb0e89b8a6b43c4a4431fce6d8de843
Autor:
J. Ryan Nolen, Angela Cleri, Kyle Kelley, Evan L. Runnerstrom, Josh Nordlander, Thomas G. Folland, Jon-Paul Maria, Joshua D. Caldwell
Publikováno v:
Advanced Photonics Research, Vol 3, Iss 12, Pp n/a-n/a (2022)
Doped cadmium oxide (CdO) films support tunable, low‐loss surface plasmon polaritons (SPPs) and epsilon‐near‐zero (ENZ) modes throughout the mid‐infrared. Prior work demonstrated that polaritonic strong coupling could be realized in bilayer f
Externí odkaz:
https://doaj.org/article/93282d564195464dbd2e2ce790fb0963
Autor:
Sina Abedini Dereshgi, Thomas G. Folland, Akshay A. Murthy, Xianglian Song, Ibrahim Tanriover, Vinayak P. Dravid, Joshua D. Caldwell, Koray Aydin
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-9 (2020)
Here, the authors investigate the polarization-dependent optical characteristics of cavities formed using α-MoO3 to extend the degrees of freedom in the design of IR photonic components exploiting the in-plane anisotropy of this material. Absorption
Externí odkaz:
https://doaj.org/article/368e3ed12a4e4d3f96ae612ee40ab170
Autor:
In-Ho Lee, Mingze He, Xi Zhang, Yujie Luo, Song Liu, James H. Edgar, Ke Wang, Phaedon Avouris, Tony Low, Joshua D. Caldwell, Sang-Hyun Oh
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-8 (2020)
The tight confinement of polaritons in 2D materials leads to increased optical losses. Here, the authors demonstrate image phonon polariton modes in hexagonal boron nitride with an antisymmetric charge distribution that feature quality factors of up
Externí odkaz:
https://doaj.org/article/381119c2e75f452287f80555a46d4786
Autor:
Guanyu Lu, Joshua Ryan Nolen, Thomas G. Folland, Marko J. Tadjer, Don Greg Walker, Joshua D. Caldwell
Publikováno v:
ACS Omega, Vol 5, Iss 19, Pp 10900-10908 (2020)
Externí odkaz:
https://doaj.org/article/bcc593ca9c774386a78f7c378bc94e6a
Autor:
Wuchao Huang, Fengsheng Sun, Zebo Zheng, Thomas G. Folland, Xuexian Chen, Huizhen Liao, Ningsheng Xu, Joshua D. Caldwell, Huanjun Chen, Shaozhi Deng
Publikováno v:
Advanced Science, Vol 8, Iss 13, Pp n/a-n/a (2021)
Abstract Polar van der Waals (vdW) crystals that support phonon polaritons have recently attracted much attention because they can confine infrared and terahertz (THz) light to deeply subwavelength dimensions, allowing for the guiding and manipulatio
Externí odkaz:
https://doaj.org/article/ea9edc5124564c4b8435c17a7e5c0a1d
Autor:
Christopher R. Gubbin, Rodrigo Berte, Michael A. Meeker, Alexander J. Giles, Chase T. Ellis, Joseph G. Tischler, Virginia D. Wheeler, Stefan A. Maier, Joshua D. Caldwell, Simone De Liberato
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-6 (2019)
Phonon polaritons are promising for mid-infrared photonics but only longitudinal optical phonons are directly accessed by electrical currents. Here, the authors predict and experimentally confirm hybrid longitudinal-transverse excitations. This could
Externí odkaz:
https://doaj.org/article/c007ecd0b62d4bcba1604c97b60dbbd1