We report on the experimental characterization of the thermal sensitivity of biosensors based on the coupling of Bloch surface waves (BSW) on amorphous silicon nitride/silicon one dimensional photonic crystals (1DPC). The results show that the silicon alloys compensate the thermo-optic effect taking place in the external medium and indicate that a class of temperature insensitive biosensors can be fabricated by properly designing the layout of the 1DPC. The experimental results are in very good agreement with numerical simulations based on a transfer matrix approach. Moreover, the BSW biosensors show a resolution of 0.03 degrees C for the measurement of temperature. (C) 2011 American Institute of Physics. [doi:10.1063/1.3666031]
Temperature stability of Bloch surface wave biosensors / Michelotti, Francesco; Emiliano, Descrovi. - In: APPLIED PHYSICS LETTERS. - ISSN 0003-6951. - STAMPA. - 99:23(2011), pp. 231107-231107-3. [10.1063/1.3666031]
Temperature stability of Bloch surface wave biosensors
MICHELOTTI, Francesco;
2011
Abstract
We report on the experimental characterization of the thermal sensitivity of biosensors based on the coupling of Bloch surface waves (BSW) on amorphous silicon nitride/silicon one dimensional photonic crystals (1DPC). The results show that the silicon alloys compensate the thermo-optic effect taking place in the external medium and indicate that a class of temperature insensitive biosensors can be fabricated by properly designing the layout of the 1DPC. The experimental results are in very good agreement with numerical simulations based on a transfer matrix approach. Moreover, the BSW biosensors show a resolution of 0.03 degrees C for the measurement of temperature. (C) 2011 American Institute of Physics. [doi:10.1063/1.3666031]I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
