Advanced Optical Materials
Online ISSN: 2195-1071
Recently Published Articles
- Terahertz Localized Surface Plasmon Resonances in Coaxial Microcavities
Withawat Withayachumnankul, Charan Manish Shah, Christophe Fumeaux, Korbinian Kaltenecker, Markus Walther, Bernd M. Fischer, Derek Abbott, Madhu Bhaskaran and Sharath Sriram
Article first published online: 21 MAY 2013 | DOI: 10.1002/adom.201300021
Coaxial microcavities etched into the surface of a doped silicon substrate are shown to support localized surface plasmon resonances at terahertz frequencies. This provides a promising pathway for the development of terahertz devices with application in the areas of photonic integrated circuits, molecular sensing, and subwavelength imaging.
- Arrays of Arbitrarily Shaped Nanoparticles: Overlay-Errorless Direct Ion Write
Gediminas Gervinskas, Gediminas Seniutinas, Lorenzo Rosa and Saulius Juodkazis
Article first published online: 3 MAY 2013 | DOI: 10.1002/adom.201300027
A simple method for the inscription of identical 20–30 nm features into single nanoparticles and their arrays is developed. Arrays of nanoparticles with exactly same optical properties can be used in nano-trapping including self-induced back-action trapping, Raman sensing, and metamaterial engineering.
- Oxide Surface Plasmon Resonance for a New Sensing Platform in the Near-Infrared Range
Hiroaki Matsui, Wasanthamala Badalawa, Akifumi Ikehata and Hitoshi Tabata
Article first published online: 3 MAY 2013 | DOI: 10.1002/adom.201200075
Surface plasmon resonance (SPR) is excited on transparent oxide semiconductors “In2O3: Sn” in the near infrared range. Coupling between excitations of surface plasmons and molecular vibrations are demonstrated. The detection sensitivity of oxide-based SPR is close to that of gold-based SPR working in the visible range. These studies evidence the useful potential of oxide-based SPR in the NIR range for sensing applications.
- Phase Engineering of Subwavelength Unidirectional Plasmon Launchers
Moritz Esslinger, Worawut Khunsin, Nahid Talebi, Tongda Wei, Jens Dorfmüller, Ralf Vogelgesang and Klaus Kern
Article first published online: 3 MAY 2013 | DOI: 10.1002/adom.201300135
Ultrasmall couplers for the excitation of plasmonic structures by photonic modes are presented. They are constructed by assembling point-like resonators in the near-field zone of the target structure. As a demonstration of its efficacy, this scheme is applied to unidirectional excitation of plasmonic waveguides. The overall footprint of the resulting coupling structures is less than λ2/10.
- Ultra-High Optical Transparency of Robust, Graded-Index, and Anti-Fogging Silica Coating Derived from Si-Containing Block Copolymers
Dong Min Sim, Min-Jae Choi, Yoon Hyung Hur, Boae Nam, Geesung Chae, Jong Hyun Park and Yeon Sik Jung
Article first published online: 2 MAY 2013 | DOI: 10.1002/adom.201300134
A graded-index anti-reflection coating with high optical transmittance, a rapid anti-fogging capability, and excellent robustness is fabricated via the stacking of Si-containing block copolymers and simple oxidation. The porosity in the nanostructured silica layers can easily be controlled by changing the fraction of the Si-containing block in the block copolymers. The high optical transparency can be maintained in harsh chemical, mechanical, and thermal environments, suggesting that the coating will be especially advantageous for outdoor applications.