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EACON 2020

EurAsian Conference on Nanophotonics

April 6 – 9, 2020 / Jena, Germany


Thomas Mayerhöfer

Leibniz Institute of Photonic Technology, 07745 Jena, Germany
Institute of Physical Chemistry, Friedrich Schiller University, 07743 Jena, Germany

Exploiting wave optics for infrared spectroscopy 

While the use of wave optics in infrared spectroscopy was well-established at the beginning of the 20th century [1], the same is only partially true a century later. In particular in the infrared spectroscopy of organic and biological substances, the Bouguer-Beer-Lambert (BBL) law is used to evaluate spectra quantitatively. In the first part of my talk I will demonstrate that the BBL law is generally not compatible with wave optics. E.g., absorbance should be independent of the electric field intensity distribution inside a sample according to the BBL law, but actually depends strongly on it [2]. In addition, absorbance is generally not linearly increasing with concentration, even in the absence of any chemical interactions, but integral absorbance does [3]. Only the use of wave optics allows the consistent interpretation of experimental spectra. The latter approach enables us also to understand approaches to enhance spectral signatures in infrared spectra. I demonstrate that based on plasmonics slit arrays can not only boost the intensity of conventional spectra, but also allow to detect chiral substances [4]. Additionally, I will show that for molecular monolayers approaches to amplify spectral signatures not based on plasmonics are advantageous [5].

Figure 1. Interference enhanced C-H2-stretching vibrations of Polyethylene


  1. Schaefer, C.; Matossi, F., Das Ultrarote Spektrum. Verlag von Julius Springer, Berlin: 1930.
  2. Mayerhöfer, T. G.; Popp, J., Spectrochimica Acta Part A 2018, 191, 283-289.
  3. Mayerhöfer, T. G.; Pipa, A. V.; Popp, J., Chemphyschem 2019, 20 (21), 2748-2753.
  4. Knipper, R.; Kopecký, V.; Huebner, U.; Popp, J.; Mayerhöfer, T. G., ACS Photonics 2018, 5 (8), 3238-3245.
  5. Mayerhöfer, T. G.; Popp, J., Spectrochimica Acta Part A 2018, 191, 165-171.

Further Talks

Andrea Csáki

Microfludic Synthesis of plasmonic Nanoparticles for Sensing Applications

Andrey Turchanin

Controlled growth of transition metal dichalcogenide monolayers for applications in nanoelectronic and nanophotonic devices

Chi Chen

Near Field Spectroscopic Imaging: from Hard to Soft Materials

Chi-How Peng

Cobalt mediated controlled/living radical polymerization: from mechanism understanding to materials application

Chun-Hong Kuo

Bridging Energy and Chemistry via Nanoarchitectonic Engineering at Atomic Scale

Falk Eilenberger

Integration of two-dimensional materials in optical systems for nonlinear optics, sensing, and single photon sources

Frank Setzpfandt

Nonlinear frequency conversion in nanostructured optical systems for application in quantum photonics

Heng-Liang Wu

Controlling the Oxidation State of Cu Electrode and Reaction Intermediates for Electrochemical CO2 Reduction to Ethylene

Kien-Voon Kong

Direct Observation of Reaction Intermediates of Metal-based Therapeutic Agents in Single Living Cell Using TERS

Maria Wächtler

Quantum confined semiconductor nanostructures in light-driven catalysis

Martin Presselt

Supramolecular Control of Optical and Electronical Properties of Two-Dimensional Dye Layers

Po-Chiao Lin

New Environment Sensitive Fluorophores with Color-Tailored Emission: In Vivo Monitoring of Carbonic Anhydrases Expression on Growth of Larval Zebrafish

Shangjr (Felix) Gwo

Plasmonic Metasurface-Enhanced Linear and Nonlinear Processes in Two-Dimensional Semiconductors

Ta-Jen Yen

Empowering Bilayer MoS2 by Engineered Plasmonic Nanostructures for Optoelectronic Applications

Tiow-Gan Ong

Carbodicarbene, Carbogenic Maverick, Not a Moderate!

Volker Deckert

Plasmon Enhanced Probe Spectroscopies – Structural Investigation of Nanoscale Objects

Yi-Tsu Chan

Molecular self-assembly methodology for rational construction of metallosupramolecules with high structural complexity

Yian Tai

Toward a universal polymeric material for electrode buffer layers in organic optoelectronics

Yu-Jung Lu

Controlling Light-matter Interactions at Nanoscale with Plasmonics: From Spontaneous Emission to Lasing