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241116s2024 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202408098
|2 doi
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|a DE-627
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|a eng
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|a Sreekanth, Kandammathe Valiyaveedu
|e verfasserin
|4 aut
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|a Dual-Phase Singularity at a Single Incident Angle with Spectral Tunability in Tamm Cavities
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|c 2024
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Revised 28.12.2024
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2024 Wiley‐VCH GmbH.
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|a The phase singularity, a sudden phase change occurring at the reflection zero is widely explored using various nanophotonic systems such as metamaterials and thin film cavities. Typically, these systems exhibit a single reflection zero with a phase singularity at a specific incident angle, particularly at larger angles of incidence (>50 degrees). However, achieving multiple phase singularities at a single incident angle remains a formidable challenge. Here, the existence of a dual-phase singularity is experimentally demonstrated at a lower incident angle using a tunable Tamm plasmon polariton (TPP) cavity that consists of gold-coated ultralow-loss phase change material Sb2S3-based distributed Bragg reflector. It can excite narrowband TPP resonances from normal incidence to a wide angle of incidence for both s- and p-polarizations of light. Notably, this TPP cavity shows dual-phase singularity at lower angles of incidence since the excited TPP for s- and p-polarizations exhibits zero reflection at slightly different wavelengths for the same incident angle. A TPP cavity-based scalable hydrogen sensor is proposed and shows that the dual-phase singularity can further improve the sensitivity of singular phase-based sensing approaches. Moreover, spectrally tunable dual-phase singularity is experimentally demonstrated at a lower incident angle using a metal-free Tamm cavity
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|a Journal Article
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|a hydrogen sensors
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| 650 |
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4 |
|a optical Tamm states
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| 650 |
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4 |
|a phase change materials
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| 650 |
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4 |
|a phase singularity
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| 650 |
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4 |
|a thin film coatings
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| 700 |
1 |
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|a Jana, Sambhu
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wu, Qing Yang Steve
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhao, Meng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Singh, Ranjan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Teng, Jinghua
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 36(2024), 52 vom: 02. Dez., Seite e2408098
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
1 |
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|g volume:36
|g year:2024
|g number:52
|g day:02
|g month:12
|g pages:e2408098
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| 856 |
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|u http://dx.doi.org/10.1002/adma.202408098
|3 Volltext
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