Zobrazeno 1 - 10
of 13
pro vyhledávání: '"S. F. Wondimu"'
Publikováno v:
Optics Express
Silicon nitride (Si3N4) waveguides offer low-loss wave propagation over a wide spectral range including visible wavelengths and lend themselves to photonic integrated circuits for bio-photonic applications. The Si3N4 device portfolio, however, is so
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9576ff2e576e99098df15adc0915592d
https://doi.org/10.1364/oe.381572
https://doi.org/10.1364/oe.381572
Autor:
Wolfgang Freude, Matthias Blaicher, D. Kohler, Isabel Allegro, S. F. Wondimu, Lothar Hahn, Christian Koos
Publikováno v:
Conference on Lasers and Electro-Optics.
We demonstrate lasing in optically pumped hybrid devices that combine passive Si 3 N 4 waveguides with active organic cladding materials. Si 3 N 4 -organic hybrid (SiNOH) lasers lend themselves to low-cost integration and parallel read-out of large-s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9405a3cbc8c2f0a93954d5d2b8731427
https://doi.org/10.1364/cleo_si.2018.sm4i.6
https://doi.org/10.1364/cleo_si.2018.sm4i.6
Autor:
Heinz Kalt, Christian Koos, Marc Hippler, Joerg Lahann, Sarah Krammer, Andreas Hofmann, Christoph Hussal, Wolfgang Freude, S. F. Wondimu
Publikováno v:
Optics express, 26 (3), 3161-3173
Whispering-gallery mode (WGM) microdisk lasers show great potential for highly sensitive label-free detection in large-scale sensor arrays. However, when used in practical applications under normal ambient conditions, these devices suffer from temper
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::98921d77389cc67cc6c9ec66a4532a2c
Autor:
Christian Koos, Wolfgang Freude, Ralf Ahrens, Sebastian von der Ecken, S. F. Wondimu, Andreas E. Guber
Publikováno v:
Lab on a chip. 17(10)
We present a multi-sensor chip comprising an array of whispering-gallery mode (WGM) micro-goblet lasers integrated into a digital microfluidic (DMF) system. In contrast to earlier demonstrations, the lasers are fabricated from dye-doped poly-methyl m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8b3ba0e94831df1cce7e1af156c102b7
https://pubmed.ncbi.nlm.nih.gov/28406508
https://pubmed.ncbi.nlm.nih.gov/28406508
Autor:
Claudius Weimann, Philipp-Immanuel Dietrich, A. Schimmel, Wolfgang Freude, T. Harter, H. Hoelscher, S. F. Wondimu, Simon Schneider, S. Muehlbrandt, Christian Koos, Andreas E. Guber, Matthias Lauermann, S. von der Ecken, G. Goering, Tobias Wienhold
Publikováno v:
Advanced Photonics 2017 (IPR, NOMA, Sensors, Networks, SPPCom, PS).
Driven by optical communications, a powerful toolbox for photonic integration has emerged over the last years. We review specific opportunities that can be unlocked by applying these technologies to the field of metrology and sensing.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::521816344b9b1d8c68f324df1d18f566
https://doi.org/10.1364/iprsn.2017.ith1a.1
https://doi.org/10.1364/iprsn.2017.ith1a.1
Autor:
Sanaz Rastjoo, Carolin Klusmann, Tobias Siegle, Sarah Krammer, S. F. Wondimu, Heinz Kalt, Christian Koos
Publikováno v:
Optics express, 25 (7), 7884-7894
Integration of optically active materials into whispering gallery mode (WGM) cavities enables low-threshold laser emission. In contrast to their passive counterparts, the WGMs of these microlasers can be pumped and read out easily via free-space opti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4fecc37104870decc346a4d9d93f12ce
Autor:
Heinz Kalt, Peter Schuch, Stefan Schierle, Christian Koos, Hao Zeng, Diederik S. Wiersma, S. F. Wondimu, Matteo Burresi, Tobias Siegle, Sara Nocentini, Camilla Parmeggiani, Benjamin Richter, Assegid Mengistu Flatae, Sarah Krammer
Publikováno v:
2016 IEEE Photonics Conference (IPC).
We review fabrication and optics of polymeric high-Q whispering gallery mode resonators. They are employed as bio-sensors featuring selective parallel functionalization of arrays and integration into lab-on-a-chip systems. Liquid crystalline elastome
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1b4415e45bfff2926f36a0fc3b5ee154
https://doi.org/10.1109/ipcon.2016.7830996
https://doi.org/10.1109/ipcon.2016.7830996
Autor:
Peter Schuch, Christian Koos, Stefan Schierle, Tobias Siegle, Benjamin Richter, Heinz Kalt, Sarah Krammer, S. F. Wondimu
Publikováno v:
Conference on Lasers and Electro-Optics.
Photonic molecules consisting of dye-doped polymeric WGM resonators exhibiting super-mode lasing are realized post fabrication by reducing the gap between the cavities. Flexible elastomer substrates allow a precise tuning of the coupling gap.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2bf199c150018f98a64ef68fa6264d3e
https://doi.org/10.1364/cleo_si.2016.stu1e.7
https://doi.org/10.1364/cleo_si.2016.stu1e.7
Autor:
Falko Brinkmann, Michael Hirtz, Tobias Wienhold, Timo Mappes, Harald Fuchs, Christian Koos, Sarah Kraemmer, Uwe Bog, Heinz Kalt, Sebastian Koeber, S. F. Wondimu
Publikováno v:
Advanced Science
In article 1500066, U. Bog, M. Hirtz, and co‐workers demonstrate on‐chip biomolecular sensing using whispering‐gallery‐mode microgoblet lasers. Biomolecular detection is usually affected by signal disturbances, induced by refractive index and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ec0b29ace15fd527949e43706d00adf2
https://doi.org/10.1002/advs.201570042
https://doi.org/10.1002/advs.201570042
Autor:
Tobias Wienhold, Christian Koos, Heinz Kalt, Uwe Bog, Uwe Dr. Weinzierl, Tobias Siegle, Timo Mappes, S. F. Wondimu, Sebastian Koeber, Holger Becker, S. Schmidt, Sarah Kraemmer
Publikováno v:
Lab on a chip. 15(18)
We present an all-polymer photonic sensing platform based on whispering-gallery mode microgoblet lasers integrated into a microfluidic chip. The chip is entirely made from polymers, enabling the use of the devices as low-cost disposables. The microgo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9470785872bda6b74dce28e04bce1944
https://pubmed.ncbi.nlm.nih.gov/26266577
https://pubmed.ncbi.nlm.nih.gov/26266577