Laser and sensor research to be advanced by new inquiries into plasmonic-photonic crystals

Schemes of PPC with equal effective refractive index and structure period. a 1D PPC and b 3D opal-like PPC Credit: Kazan Federal University

A group of researchers led by Professor Myakzyum Salakhov has been working on the problem of optical states in plasmonic-photonic crystals (PPCs). The group mostly consists of young scientists, some of whom started their participation in the project during their student years.

First Category Engineer Artyom Koryukin comments that the research was dedicated to modelling light transmission throughout photonic crystals with a continuous gold layer on their surface. Photonic crystals don't pass a certain wavelength (color) of light.

This is called the photonic bandgap – the range of light wavelength where propagation through a crystal is difficult. PPCs, on the contrary, allow the passing of light of a certain wavelength in this photonic bandgap. The problem of three-dimensional opal-like PPCs (OLPPCs), however, is that they don't admit light of certain wavelengths.

In this work, conditions are defined for the passing of a beam of light with the wavelength of the photonic bandgap and certain polarization through an OLPPC. To achieve this goal, different versions of PPCs were modelled.

The main conditions to pass such a beam are both the continuity of the gold layer with thickness of about 40 nm and the use of light with polarization. Transmittance of light across a PPC is accompanied by excitations of the optical Tamm states. One- dimensional PPC has a light transmission pass bands inside the photonic bandgap in both polarizations.

Three-dimensional PPCs do not have light transmission pass bands inside the photonic bandgap because of a non-continuous gold layer (shaped like separate nano-caps or nano-crescents on the surface of a PPC). So the used OLPPCs have this unique feature – they have a light transmission pass band inside the photonic bandgap with certain polarization due to the excitation of the hybrid mode of the optical states.

OLPPCs with the hybrid mode of the optical states can be used in high-polarization-sensitive sensors. “We assume that the hybrid mode can be useful for improving the control of light in PPCs. New types of resonators based on OLPPCs can be used for the strong interaction of light and matter,” adds Mr. Koryukin.

The group is planning to create a theoretical description of the model of such processes. Additionally, they want to find effective applications for OLPPCs, such as strong light-matter interactions with a single photon source.


NB: This paper was first made available online in November 2018 with a print versions following in August 2019.

Media Contact

Yury Nurmeev European Geosciences Union

Alle Nachrichten aus der Kategorie: Physics and Astronomy

This area deals with the fundamental laws and building blocks of nature and how they interact, the properties and the behavior of matter, and research into space and time and their structures.

innovations-report provides in-depth reports and articles on subjects such as astrophysics, laser technologies, nuclear, quantum, particle and solid-state physics, nanotechnologies, planetary research and findings (Mars, Venus) and developments related to the Hubble Telescope.

Zurück zur Startseite

Kommentare (0)

Schreib Kommentar

Neueste Beiträge

High-thermoresistant biopolyimides become water-soluble like starch

This is the first report for the syntheses of water-soluble polyimides which are Interestingly derived from bio-based resources, showing high transparency, tunable mechanical strength and the highest thermoresistance in water-soluble…

Land management in forest and grasslands

How much can we intensify? A first assessment of the effects of land management on the links between biodiversity, ecosystem functions and ecosystem services. Ecosystem services are crucial for human…

A molecular break for root growth

The dynamic change in root growth of plants plays an important role in their adjustment to soil conditions. Depending on the location, nutrients or moisture can be found in higher…

By continuing to use the site, you agree to the use of cookies. more information

The cookie settings on this website are set to "allow cookies" to give you the best browsing experience possible. If you continue to use this website without changing your cookie settings or you click "Accept" below then you are consenting to this.