Design and optimization of slotted multimode interference devices for chemical and biochemical sensing - art. no. 66191O

• Type: Article in International Conference Proceedings Book
• Date: 2007

Authors

Mayeh, M (Author) Other; Viegas, J (Author) Other; Marques, P (Author) FCUP; Santos, JL (Author) FCUP; Farahi, F (Author) Other

Conference proceedings International

Title: Third European Workshop on Optical Fibre Sensors

Pages: O6191-O6191

3rd European Workshop on Optical Fibre Sensors

Naples, ITALY, JUL 04-06, 2007

Indexing

ISI Web of Knowledge - 1 Citation

Scopus - 1 Citation

Scientific classification

FOS: Natural sciences > Physical sciences

Other information

Authenticus ID: P-005-5PT

DOI: 10.1117/12.738611

Abstract (EN): The major achievements in the field of optical sensors in the past two decades have remained mostly limited to the laboratory demonstrations. There are very few examples of optical sensors, which have been reduced to practice, and have established themselves in major markets. The main bottleneck in this field is the issue of manufacturability. In this paper we present optical sensors based on slotted multimode interference waveguides. We show that the sensitivity increases proportionally to the number of slots. The sensor can be tuned to highest sensitivity in the refractive index ranges necessary to detect protein-based molecules or other water-soluble chemical or biological materials. The material of choice is a sol-gel (ORMOCER) matrix that after completion of the process becomes mostly glass and it is highly stable. Sensors made with this technology are suited to high volume manufacturing.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 4