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Flexible biomimetic block copolymer composite for temperature and long-wave infrared sensing

https://doi.org/10.1126/sciadv.ade0423

Kim, Tae Hyun; Zhou, Zhun; Choi, Yeong Suk; Costanza, Vincenzo; Wang, Linghui; Bahng, Joong Hwan; Higdon, Nicholas J.; Yun, Youngjun; Kang, Hyunbum; Kim, Sunghan; et al (February 2023, Science Advances)

A flexible biomimetic polymer with high thermal response is created for temperature mapping and long-wave IR sensing.
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Mie Resonance Engineering in Meta-Shell Supraparticles for Nanoscale Nonlinear Optics

https://doi.org/10.1021/acsnano.0c07127

Bahng, Joong Hwan; Jahani, Saman; Montjoy, Douglas G.; Yao, Timothy; Kotov, Nicholas; Marandi, Alireza (December 2020, ACS Nano)
null (Ed.)
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Light confinement in low-index particles with all-dielectric anisotropic metamaterial shell (Conference Presentation)

https://doi.org/10.1117/12.2545314

Jahani, Saman; Bahng, Joong Hwan; Montjoy, Douglas; Yao, Timothy A.; Kotov, Nicholas A.; Marandi, Alireza (January 2020, SPIE OPTO, 2020)

We propose and demonstrate low-refractive-index particles with all-dielectric metamaterial shell which lead to formation of high intensity photonic nanojets. We show that the extra degree of freedom because of the anisotropy of the shell gives rise to an increase in the photonic jet intensity inside the metamaterial shell without a need to increase the size of the particle. The anisotropy of the shell can also control the spectral and spatial location of the Mie-type multipolar resonances to achieve the desired scattering. In experiments, the metamaterial shell is composed of strong nonlinear materials leading to enhanced nonlinear wavelength conversion at nanoscale.
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