Browsing by Subject "Light absorption"

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  • Calibration accuracy of laser calorimetry for common crystal geometries 
    Willer, Yannick; Hao, Liu; Balasa, Istvan; Ristau, Detlev (Bellingham, WA : S P I E - International Society for Optical Engineering, 2017)
    An established method for precise determination of optical absorption is the so called laser calorimetry. According to ISO 115511 laser calorimetry is preferred to other photothermal test methods, because of its capability ...
  • Core-shell particles as efficient broadband absorbers in infrared optical range 
    Evlyukhin, Andrey B.; Nerkararyan, Khachatur V.; Bozhevolnyi, Sergey I. (Washington, DC : OSA - The Optical Society, 2019)
    We demonstrate that efficient broadband absorption of infrared radiation can be obtained with deeply subwavelength spherical dielectric particles covered by a thin metal layer. Considerations based on Mie theory and the ...
  • Laser interferometry with translucent and absorbing mechanical oscillators 
    Friedrich, Daniel; Kaufer, Henning; Westphal, Tobias; Yamamoto, K.; Sawadsky, Andreas; Ya Khalili, F.; Danilishin, S.L.; Goßler, Stefan; Danzmann, Karsten; Schnabel, Roman (Bristol : IOP Publishing Ltd., 2011)
    The sensitivity of laser interferometers can be pushed into regimes that enable the direct observation of the quantum behaviour of mechanical oscillators. In the past, membranes with subwavelength thickness (thin films) ...
  • Matrix heater in the gravitational wave observatory GEO 600 
    Wittel, H.; Affeldt, Christoph; Bisht, A.; Doravari, S.; Grote, Hartmut; Lough, J.; Lück, Harald; Schreiber, E.; Strain, K.A.; Danzmann, Karsten (Washington, DC : Optical Society of America, 2018)
    Large scale laser interferometric gravitational wave detectors (GWDs), such as GEO 600 require high quality optics to reach their design sensitivity. The inevitable surface imperfections, inhomogeneities, and light-absorption ...
  • Photoelectrochemical and theoretical investigations of spinel type ferrites (MxFe3-xO4) for water splitting: A mini-review 
    Taffa, Dereje H.; Dillert, Ralf; Ulpe, Anna C.; Bauerfeind, Katharina C.L.; Bredow, Thomas; Bahnemann, Detlef W.; Wark, Michael (Bellingham, WA : S P I E - International Society for Optical Engineering, 2017)
    Solar-assisted water splitting using photoelectrochemical cells (PECs) is one of the promising pathways for the production of hydrogen for renewable energy storage. The nature of the semiconductor material is the primary ...
  • Picosecond near-to-mid-infrared absorption of pulse-injected small polarons in magnesium doped lithium niobate 
    Freytag, Felix; Booker, Philip; Corradi, Gabor; Messerschmidt, Simon; Krampf, Andreas; Imlau, Mirco (Washington, DC : Optical Society of America, 2018)
    Femtosecond-pulse-induced (Epump = 2:5 eV) picosecond infrared absorption is studied in the spectral region between 0.30 eV and 1.05 eV in LiNbO3:Mg. We find a noninstantaneous mid-infrared absorption peak in the time ...
  • Spatially-targeted laser fabrication of multi-metal microstructures inside a hydrogel 
    Machida, Manan; Niidome, Takuro; Onoe, Hiroaki; Heisterkamp, Alexander; Terakawa, Mitsohiro (Washington, DC : OSA - The Optical Society, 2019)
    The spatially-targeted fabrication of bimetallic microstructures coexisting in the supporting hydrogel is demonstrated by multi-photon photoreduction. Microstructures composed of gold and silver were fabricated along a ...