TY - GEN A1 - Ihmels, Heiko A1 - Linker, Torsten A1 - Trofimov, Aleksei T1 - Editorial T2 - Journal of physical organic chemistry Y1 - 2017 U6 - https://doi.org/10.1002/poc.3745 SN - 0894-3230 SN - 1099-1395 VL - 30 PB - Wiley CY - Hoboken ER - TY - GEN A1 - Hass, Roland A1 - Sandmann, Michael A1 - Reich, Oliver T1 - Photonic sensing in highly concentrated biotechnical processes by photon density wave spectroscopy T2 - Proceedings SPIE 10323, 25th International Conference on Optical Fiber Sensors N2 - Photon Density Wave (PDW) spectroscopy is introduced as a new approach for photonic sensing in highly concentrated biotechnical processes. It independently quantifies the absorption and reduced scattering coefficient calibration-free and as a function of time, thus describing the optical properties in the vis/NIR range of the biomaterial during their processing. As examples of industrial relevance, enzymatic milk coagulation, beer mashing, and algae cultivation in photo bioreactors are discussed. KW - Photon Density Wave Spectroscopy KW - multiple light scattering KW - fermentation KW - algae cultivation KW - process analytical technology KW - fiber spectroscopy Y1 - 2017 SN - 978-1-5090-4850-2 U6 - https://doi.org/10.1117/12.2263617 SN - 0277-786X SN - 1996-756X VL - 10323 PB - IEEE CY - New York ER - TY - GEN A1 - Füchsel, Gernot T1 - Elektronengetriebene Reaktionen auf Oberflächen : die Dynamik der femtosekundenlaserinduzierten Desorption von H2/D2 von Ru(001) Y1 - 2011 CY - Potsdam ER - TY - GEN A1 - Floss, Gereon T1 - Theoretische Untersuchungen zur lichtinduzierten Isomerisierung von gekoppelten Azobenzolderivaten Y1 - 2014 CY - Potsdam ER - TY - GEN A1 - Ellis, S. C. A1 - Bauer, S. A1 - Bacigalupo, C. A1 - Bland-Hawthorn, J. A1 - Bryant, J. J. A1 - Case, S. A1 - Content, R. A1 - Fechner, T. A1 - Giannone, D. A1 - Haynes, R. A1 - Hernandez, E. A1 - Horton, A. J. A1 - Klauser, U. A1 - Lawrence, J. S. A1 - Leon-Saval, S. G. A1 - Lindley, E. A1 - Löhmannsröben, Hans-Gerd A1 - Min, S. -S. A1 - Pai, N. A1 - Roth, M. A1 - Shortridge, K. A1 - Waller, L. A1 - Xavier, Pascal A1 - Zhelem, Ross T1 - PRAXIS: an OH suppression optimised near infrared spectrograph T2 - Ground-based and Airborne Instrumentation for Astronomy VII N2 - The problem of atmospheric emission from OH molecules is a long standing problem for near-infrared astronomy. PRAXIS is a unique spectrograph which is fed by fibres that remove the OH background and is optimised specifically to benefit from OH-Suppression. The OH suppression is achieved with fibre Bragg gratings, which were tested successfully on the GNOSIS instrument. PRAXIS uses the same fibre Bragg gratings as GNOSIS in its first implementation, and will exploit new, cheaper and more efficient, multicore fibre Bragg gratings in the second implementation. The OH lines are suppressed by a factor of similar to 1000, and the expected increase in the signal-to-noise in the interline regions compared to GNOSIS is a factor of similar to 9 with the GNOSIS gratings and a factor of similar to 17 with the new gratings. PRAXIS will enable the full exploitation of OH suppression for the first time, which was not achieved by GNOSIS (a retrofit to an existing instrument that was not OH-Suppression optimised) due to high thermal emission, low spectrograph transmission and detector noise. PRAXIS has extremely low thermal emission, through the cooling of all significantly emitting parts, including the fore-optics, the fibre Bragg gratings, a long length of fibre, and the fibre slit, and an optical design that minimises leaks of thermal emission from outside the spectrograph. PRAXIS has low detector noise through the use of a Hawaii-2RG detector, and a high throughput through a efficient VPH based spectrograph. PRAXIS will determine the absolute level of the interline continuum and enable observations of individual objects via an IFU. In this paper we give a status update and report on acceptance tests. KW - Near infrared KW - spectroscopy KW - OH suppression KW - astrophotonics KW - fibre Bragg gratings Y1 - 2018 SN - 978-1-5106-1958-6 U6 - https://doi.org/10.1117/12.2311898 SN - 0277-786X SN - 1996-756X VL - 10702 PB - SPIE-INT Soc Optical Engineering CY - Bellingham ER - TY - GEN A1 - Dani, Alessandro A1 - Taeuber, Karoline A1 - Zhang, Weiyi A1 - Schlaad, Helmut A1 - Yuan, Jiayin T1 - Stable covalently photo-cross-linked porous poly(ionic liquid) membrane with gradient pore size T2 - Abstracts of papers : joint conference / The Chemical Institute of Cananda, CIC, American Chemical Society, ACS N2 - Porous polyelectrolyte membranes stable in a highly ionic environment are obtained by covalent crosslinking of an imidazolium-based poly(ionic liquid). The crosslinking reaction involves the UV light-induced thiol-ene (click) chemistry, and the phase separation, occurring during the crosslinking step, generates a fully interconnected porous structure in the membrane. The porosity is on the order of the micrometer scale and the membrane shows a gradient of pore size across the membrane cross-section. The membrane can separate polystyrene latex particles of different size and undergoes actuation in contact with acetone due to the asymmetric porous structure. Y1 - 2018 SN - 0065-7727 VL - 256 PB - American Chemical Society CY - Washington ER - TY - GEN A1 - Bressel, Lena A1 - Herzog, Bernd A1 - Reich, Oliver T1 - Monte-Carlo simulations of light transport in dense materials BT - dependent scattering and influence on sunscreen formulations T2 - Diffuse Optical Spectroscopy and Imaging N2 - Monte-Carlo calculations are carried out to simulate the light transport in dense materials. Focus lies on the calculation of diffuse light transmission through films of scattering and absorbing media considering additionally the effect of dependent scattering. Different influences like interaction type between particles, particle size, composition etc. can be studied by this program. Simulations in this study show major influences on the diffuse transmission. Further simulations are carried out to model a sunscreen film and study best compositions of this film and will be presented. KW - Monte-Carlo simulations KW - dependent scattering KW - sunscreen KW - light scattering KW - high concentrations Y1 - 2019 SN - 978-1-5106-2841-0 SN - 978-1-5106-2842-7 U6 - https://doi.org/10.1117/12.2527076 SN - 0277-786X SN - 1996-756X VL - 11074 PB - SPIE CY - Bellingham ER - TY - GEN A1 - Boese, Adrian Daniel T1 - Assessment of coupled cluster theory and more approximate methods for Hydrogen Bonded Systems (vol 9, pg 4403, 2013) T2 - Journal of chemical theory and computation Y1 - 2014 U6 - https://doi.org/10.1021/ct500041j SN - 1549-9618 SN - 1549-9626 VL - 10 IS - 2 SP - 893 EP - 893 PB - American Chemical Society CY - Washington ER - TY - GEN A1 - Bleek, Katrin A1 - Taubert, Andreas T1 - New developments in polymer-controlled, bio-inspired calcium phosphate mineralization from aqueous solution T2 - Acta biomaterialia Y1 - 2013 U6 - https://doi.org/10.1016/j.actbio.2013.05.007 SN - 1742-7061 VL - 9 IS - 9 SP - 8466 EP - 8466 PB - Elsevier CY - Oxford ER - TY - GEN A1 - Bande, Annika A1 - González, Leticia A1 - Klamroth, Tillmann A1 - Tremblay, Jean Christophe T1 - Theoretical chemistry and quantum dynamics at interfaces BT - Celebrating the career of Peter Saalfrank on the occasion of his 60th birthday T2 - Chemical physics : a journal devoted to experimental and theoretical research involving problems of both a chemical and physical nature Y1 - 2022 U6 - https://doi.org/10.1016/j.chemphys.2022.111509 SN - 0301-0104 SN - 1873-4421 VL - 558 PB - Elsevier Science CY - Amsterdam [u.a.] ER -