TY  - JOUR
A1  - Kollosche, Matthias
A1  - Döring, Sebastian
A1  - Stumpe, Joachim
A1  - Kofod, Guggi
T1  - Voltage-controlled compression for period tuning of optical surface
 relief gratings
JF  - OPTICS LETTERS
N2  - This Letter reports on new methods and a consistent model for voltage tunable optical transmission gratings. Elastomeric gratings were molded from holographically written surface relief gratings in an azobenzene sol-gel material. These were placed on top of a transparent electroactive elastomeric substrate. Two different electro-active substrate elastomers were employed, with a large range of prestretches. A novel finite-deformation theory was found to match the device response excellently, without fitting parameters. The results clearly show that the grating underwent pure-shear deformation, and more surprisingly, that the mechanical properties of the electro-active substrate did not affect device actuation. (C) 2011 Optical Society of America
Y1  - 2011
SN  - 0146-9592
VL  - 36
IS  - 8
SP  - 1389
EP  - 1391
PB  - OPTICAL SOC AMER
CY  - WASHINGTON
ER  - 
TY  - JOUR
A1  - Heydari, Esmaeil
A1  - Buller, Jens
A1  - Wischerhoff, Erik
A1  - Laschewsky, André
A1  - Döring, Sebastian
A1  - Stumpe, Joachim
T1  - Label-Free biosensor based on an all-polymer DFB laser
JF  - Advanced optical materials
KW  - label-free biosensors
KW  - DFB lasers
KW  - active optical resonators
KW  - hydrogels
KW  - semiconducting polymers
Y1  - 2014
U6  - https://doi.org/10.1002/adom.201300454
SN  - 2195-1071
VL  - 2
IS  - 2
SP  - 137
EP  - 141
PB  - Wiley-VCH
CY  - Weinheim
ER  - 
TY  - JOUR
A1  - Döring, Sebastian
A1  - Kollosche, Matthias
A1  - Rabe, Torsten
A1  - Stumpe, Joachim
A1  - Kofod, Guggi
T1  - Electrically tunable polymer DFB laser
JF  - Advanced materials
Y1  - 2011
U6  - https://doi.org/10.1002/adma.201102465
SN  - 0935-9648
VL  - 23
IS  - 37
SP  - 4265
EP  - 4269
PB  - Wiley-VCH
CY  - Weinheim
ER  -