At the Photonics Laboratory in IIT Bombay, we are developing various photonic devices based on different spectroscopic techniques. They are tailored for various opto-electronic and sensing applications in the agricultural, healthcare and environmental sector.

Motivation    

 ■ A need for a healthcare monitoring system with fast detection response and reduced device footprint which is non-destructive for the sample, and also immune to external electromagnetic interference

Novelty
 

■ Easy integration of the developed sensing platforms with LEDs and photodetectors developed in our Photonics lab

 ■ Ability to miniaturise the sensing platformand detectors onto a single chip, made entirelyof the same polymer

Salient features    
 ■ Tunable performance via tailoring the geometry (as in case of U-Bent fibre sensor Fig. 1) or by changing compositional properties of the constitutent materials (as in case of polymer waveguides Fig. 2)

 ■ Operation can be tuned to offer multimodal response to monochromatic as well as broadband sources
 

Applications    
 ■ Sensing platform constituting the waveguide can be chemically activated for different and specific bio-organisms

 ■ The sensing platform developed can also be used for detection of various human and plant pathogen detection