scholarly journals Perovskite/Metal‐Based Hyperbolic Metamaterials: Tailoring the Permittivity Properties of Coexisting Anisotropies in the Visible Region (Advanced Optical Materials 1/2021)

2021 ◽  
Vol 9 (1) ◽  
pp. 2170004
Author(s):  
Supratim Basak ◽  
Ofer Bar‐On ◽  
Jacob Scheuer
Keyword(s):  
Optical Materials ◽  
Visible Region ◽  
Hyperbolic Metamaterials

scholarly journals Superscattering from cylindrical hyperbolic metamaterials in the visible region

2020 ◽  
Vol 28 (2) ◽  
pp. 1507 ◽  
Author(s):  
Rahul Kumar ◽  
Kotaro Kajikawa
Keyword(s):  
Visible Region ◽  
Hyperbolic Metamaterials

Biosensing: Enhancing the Angular Sensitivity of Plasmonic Sensors Using Hyperbolic Metamaterials (Advanced Optical Materials 11/2016)

2016 ◽  
Vol 4 (11) ◽  
pp. 1659-1659 ◽  
Author(s):  
Kandammathe Valiyaveedu Sreekanth ◽  
Yunus Alapan ◽  
Mohamed ElKabbash ◽  
Amy M. Wen ◽  
Efe Ilker ◽  
...  
Keyword(s):  
Optical Materials ◽  
Angular Sensitivity ◽  
Hyperbolic Metamaterials ◽  
Plasmonic Sensors

scholarly journals Hyperbolic Metamaterials via Hierarchical Block Copolymer Nanostructures (Advanced Optical Materials 7/2021)

2021 ◽  
Vol 9 (7) ◽  
pp. 2170024
Author(s):  
Irdi Murataj ◽  
Marwan Channab ◽  
Eleonora Cara ◽  
Candido F. Pirri ◽  
Luca Boarino ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Optical Materials ◽  
Hyperbolic Metamaterials

scholarly journals Hyperbolic Metamaterials with Extreme Mechanical Hardness (Advanced Optical Materials 9/2021)

2021 ◽  
Vol 9 (9) ◽  
pp. 2170031
Author(s):  
Arrigo Calzolari ◽  
Alessandra Catellani ◽  
Marco Buongiorno Nardelli ◽  
Marco Fornari
Keyword(s):  
Optical Materials ◽  
Hyperbolic Metamaterials ◽  
Mechanical Hardness

scholarly journals Hyperbolic Metamaterials: Hyperbolic Metamaterials and Metasurfaces: Fundamentals and Applications (Advanced Optical Materials 14/2019)

2019 ◽  
Vol 7 (14) ◽  
pp. 1970054 ◽  
Author(s):  
Pengcheng Huo ◽  
Si Zhang ◽  
Yuzhang Liang ◽  
Yanqing Lu ◽  
Ting Xu
Keyword(s):  
Optical Materials ◽  
Hyperbolic Metamaterials

scholarly journals Structural modulation of π-conjugated linkers in D–π–A dyes based on triphenylamine dicyanovinylene framework to explore the NLO properties

2021 ◽  
Vol 8 (8) ◽  
pp. 210570
Author(s):  
Muhammad Khalid ◽  
Muhammad Usman Khan ◽  
Iqra Shafiq ◽  
Riaz Hussain ◽  
Akbar Ali ◽  
...  
Keyword(s):  
Absorption Spectra ◽  
Optical Materials ◽  
Density Functional ◽  
Visible Region ◽  
Functional Theory ◽  
Nlo Properties ◽  
Structural Modifications ◽  
Nlo Response ◽  
Nlo Materials ◽  
Structural Modulation

A donor–π–acceptor type series of Triphenylamine–dicyanovinylene-based chromophores ( DPMN1–DPMN11 ) was designed theoretically by the structural tailoring of π-linkers of experimentally synthesized molecules DTTh and DTTz to exploit changes in the optical properties and their nonlinear optical materials (NLO) behaviour. Density functional theory (DFT) computations were employed to understand the electronic structures, absorption spectra, charge transfer phenomena and the influence of these structural modifications on NLO properties. Interestingly, all investigated chromophores exhibited lower band gap (2.22–2.60 eV) with broad absorption spectra in the visible region, reflecting the remarkable NLO response. Furthermore, natural bond orbital (NBO) findings revealed a strong push–pull mechanism in DPMN1–DPMN11 as donor and π-conjugates exhibited positive, while all acceptors showed negative values. Examination of electronic transitions from donor to acceptor moieties via π-conjugated linkers revealed greater linear (〈 α 〉 = 526.536–641.756 a.u.) and nonlinear ( β tot = 51 313.8–314 412.661 a.u.) response. It was noted that the chromophores containing imidazole in the second p-linker expressed greater hyperpolarizability when compared with the ones containing pyrrole. This study reveals that by controlling the type of π-spacers, interesting metal-free NLO materials can be designed, which can be valuable for the hi-tech NLO applications.

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