Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Ventsislav Lavchiev"'
Autor:
Bernhard Jakoby, Ventsislav Lavchiev
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics. 23:452-463
Photonics has been extensively exploited in the visible and near-infrared spectral ranges. Sensing of liquids and gases is a promising area for advancing of the photonics also in the mid-infrared spectral range (MIR). Of particular interest is the re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d6c5c177690a56ba866fe5f1da326513
https://doi.org/10.1109/jstqe.2016.2619330
https://doi.org/10.1109/jstqe.2016.2619330
Autor:
Reyhaneh Jannesari, Cristina Consani, Thomas Grille, Ventsislav Lavchiev, Christian Ranacher, Bernhard Jakoby
Publikováno v:
Procedia Engineering. 168:375-379
A design for enhancing the quality (Q) factor of a photonic crystal ring resonator (PCRR) for gas sensing in the mid infrared (MIR) region is introduced. The PCRR is based on 2D pillar type photonic crystals, which consist of a hexagonal array of sil
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::053f3b806dced86ffb7fbb7aaa92c116
Autor:
Bernhard Jakoby, Christian Ranacher, Ventsislav Lavchiev, Cristina Consani Carinthian, Thomas Grille, Ursula Hedenig
Publikováno v:
2016 IEEE SENSORS.
We present an evanescent-wave absorption sensor for gas detection using a silicon slab waveguide fabricated in MEMS technology. We demonstrate the feasibility for measuring CO 2 concentrations quantitatively with the used sensor structure. Furthermor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8bd231888b8772b1da7385e2936ed5f1
https://doi.org/10.1109/icsens.2016.7808688
https://doi.org/10.1109/icsens.2016.7808688
Autor:
James M. R. Kirkbride, Bernhard Jakoby, Th. Grille, Ventsislav Lavchiev, Grant A. D. Ritchie, Ursula Hedenig
Publikováno v:
Optics express. 24(1)
The presented work demonstrates the design and characterization of Si-based photonic crystal waveguides operating as an evanescent wave absorption sensor in the mid-IR range λ = 5-6 µm. The photonic crystal structure is fabricated in a Si slab upon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::204b57793fc3e0d269ff42b66c18e789
https://pubmed.ncbi.nlm.nih.gov/26832257
https://pubmed.ncbi.nlm.nih.gov/26832257
Autor:
Gernot Mauthner, Holger Schmidt, Veronika Rinnerbauer, Martin Gaal, Harald Plank, Emil List, Kurt Hingerl, Christine Hasenfuß, Ventsislav Lavchiev, Michael Teuchtmann
Publikováno v:
Applied Physics A. 95:265-272
In this study, we present distributed feedback structure lasers which were fabricated by imprinting a grating directly into a highly luminescent conjugated polymer. Based on the interplay between simulations and experimental results, we optimized som
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::60df4c8e1ecd6f8f26b2bad126aa0ebd
https://doi.org/10.1007/s00339-009-5105-6
https://doi.org/10.1007/s00339-009-5105-6
Autor:
Wolfgang Heiss, Kurt Hingerl, Ventsislav Lavchiev, Gudrun Kocher, J. Roither, Maksym V. Kovalenko, Veronika Rinnerbauer
Publikováno v:
Physica E: Low-dimensional Systems and Nanostructures. 32:104-107
We have explored the optical properties of bilayers of Mercury telluride (HgTe) nanocrystals (NCs) embedded in polymer which were prepared from a colloidal solution. These NCs show strong luminescence in the near infrared at room temperature, which m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::24a2b86b50a4cfeea965e41de50b21bd
https://doi.org/10.1016/j.physe.2005.12.044
https://doi.org/10.1016/j.physe.2005.12.044
Autor:
James M. R. Kirkbride, Ventsislav Lavchiev, Bernhard Jakoby, Thomas Grille, Ursula Hedenig, Grant A. D. Ritchie
Publikováno v:
Proceedings SENSOR 2015.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f5e622f27c4aa0e4ac708e5a74d21dbd
https://doi.org/10.5162/sensor2015/c1.4
https://doi.org/10.5162/sensor2015/c1.4
Autor:
Bernhard Lendl, Peter Irsigler, Grant A. D. Ritchie, Thomas Grille, Bernhard Jakoby, Ursula Hedenig, Ventsislav Lavchiev, James M. R. Kirkbride
Publikováno v:
IEEE SENSORS 2014 Proceedings.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2cbfc92573ff74f50d7af54ee4991028
https://doi.org/10.1109/icsens.2014.6985081
https://doi.org/10.1109/icsens.2014.6985081
Autor:
Thomas Grille, Ventsislav Lavchiev, Bernhard Lendl, Bernhard Jakoby, Peter Irsigler, Ursula Hedenig, James M. R. Kirkbride, Grant A. D. Ritchie
Publikováno v:
Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications VIII.
Basic challenges for mid-infrared (MIR) Si photonic s are developing of appropriate sources and detecto rs, detection sensitivity, size minimization and downsc aling to a single-platform, spectral tunability. We address such challenges via proper des
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b01a05e5ba47186e5ac4c98dd280a8c
https://doi.org/10.1117/12.2072632
https://doi.org/10.1117/12.2072632
Publikováno v:
Thin Solid Films. 518:2573-2575
In the present work we demonstrate a Si rib waveguide photodiode based on a vertical p–i–n junction with Ge islands operating in the near infrared spectral region around λ = 1.55 µm at room temperature. The device employs Ge islands as infrared
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::40550ffb4918d74fd49e683b6b499575
https://doi.org/10.1016/j.tsf.2009.09.147
https://doi.org/10.1016/j.tsf.2009.09.147