Publikationen
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Mid-infrared fiberoptic evanescent field spectroscopy for in-situ monitoring of tetrahydrofuran hydrate formation and dissociation
Wissenschaftlicher Artikel(Universität Ulm, 2017-01-03)Tetrahydrofuran is a relevant auxiliary molecule when storing carbon dioxide or hydrocarbons as gas hydrates. The present study demonstrates the application of in situ mid-infrared fiber-optic evanescent field absorption ... -
Towards enhanced optical sensor performance: SEIRA and SERS with plasmonic nanostars
Wissenschaftlicher Artikel(Universität Ulm, 2017-02-08)We report the preparation and characterization of plasmonic chip-based systems comprising self-assembled gold nanostars at silicon substrates that enable concomitantly enhanced Raman (surface enhanced Raman spectroscopy; ... -
Simultaneous determination of monoatomic ions via infrared attenuated total reflection spectroscopy in aqueous solution at different temperatures
Wissenschaftlicher Artikel(Universität Ulm, 2016)In this study, monoatomic and thus IR-inactive ions were determined via infrared attenuated total reflection (IR-ATR) spectroscopy including Cl(-), Na(+), Mg(2+), Ca(2+), K(+) and Br(-), next to the IR-active ion [Formula: ... -
Advancements in IR spectroscopic approaches for the determination of fungal derived contaminations in food crops
Wissenschaftlicher Artikel(Universität Ulm, 2015)Infrared spectroscopy is a rapid, nondestructive analytical technique that can be applied to the authentication and characterization of food samples in high throughput. In particular, near infrared spectroscopy is commonly ... -
Towards on-chip mid-infrared sensors
Wissenschaftlicher Artikel(Universität Ulm, 2016-04-15)This Feature highlights recent advances on mid-infrared thin-film waveguide technology and on-chip photonics facilitating next-generation label-free chem/bio sensor and assay platforms. Complemented by more recent advancements ... -
A mid-Infrared spectroscopy platform based on GaAs/AlGaAs thin-film waveguides and quantum cascade lasers
Wissenschaftlicher Artikel(Universität Ulm, 2016)The performance and versatility of GaAs/AlGaAs thin-film waveguide technology in combination with quantum cascade lasers for mid-infrared spectroscopy in comparison to conventional FTIR spectroscopy is presented. Infrared ... -
Mid-infrared thin-film diamond waveguides combined with tunable quantum cascade lasers for analyzing the secondary structure of proteins
Wissenschaftlicher Artikel(Universität Ulm, 2016-04-28)Diamond has excellent optical properties including broadband transmissivity, low self- absorption and a high refractive index, which have prompted its use in for optical sensing applications. Thin-film diamond strip ... -
Sensing chlorinated hydrocarbons via miniaturized GaAs/AlGaAs thin-film waveguide flow cells coupled to quantum cascade lasers
Wissenschaftlicher Artikel(Universität Ulm, 2016-07-05)Mid-infrared (MIR) sensors based on attenuated total reflection (ATR) spectroscopy provide robust, rapid and sensitive platforms for the detection of low levels of organic molecules and pollutants. Nowadays, MIR (3–15 μm) ... -
In-situ monitoring of additives during CO2 gas hydrate formation
Wissenschaftlicher Artikel(Universität Ulm, 2016-07-05)Research activities on the reduction of carbon dioxide emissions via effective carbon capture and storage (CCS) techniques are steadily increasing with the concept of storing CO2 as hydrates among the most prominently ... -
Infrared spectroscopy on the role of surfactants during methane hydrate formation
Wissenschaftlicher Artikel(Universität Ulm, 2017)Gas hydrates are ice-like compounds consisting of a rigid water framework hosting small molecules inside crystal cavities. In the present study, a gas hydrate autoclave that enables precise control and observation of ...
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