Design of surface plasmon resonance biosensors by using powell lens

Abstract

Surface plasmon resonance (SPR) biosensors by using Powell lens is proposed. By taking an advantage of Powell lens which distributes light intensity uniformly along the length of line, broad range of samples can be measured without using a motorized rotation stage. This results in simple and compact optoelectronic sensors. A preliminary experimental verification shows that a dip intensity of light reflectance from measurement of the refractive index of air can be obtained by using the proposed sensor.