A 220 × 128 120 mW 60 frames/s current mode polarization imager for in vivo optical neural recording

Author

York, Timothy ; Gruev, Viktor ; Saha, D. ; Raman, Baranidharan

Author_Institution

Dept. of Comput. Sci. & Eng., Washington Univ. in St. Louis, St. Louis, MO, USA

fYear

2014

fDate

1-5 June 2014

Firstpage

1849

Lastpage

1852

Abstract

A 220 by 128 current mode imaging sensor with polarization sensitivity is used to image intrinsic neural activity in vivo from the antenna lobe of a locust. The polarization sensitivity is achieved via post-CMOS fabrication deposition of pixelated aluminum nanowire polarization filters at four different orientations offset by 45 degrees. The measured change in polarization response from the neural cells baseline for hexanol is 0.38%, for octanol is 0.15%, and for the combined odor is 0.45%.

Keywords

CMOS integrated circuits; aluminium; bioelectric potentials; biomedical optical imaging; cellular biophysics; image sensors; light polarisation; nanomedicine; neurophysiology; Al; current mode imaging sensor; current mode polarization imager; hexanol; in vivo optical neural recording; locust antenna lobe; neural cell baseline; octanol; pixelated aluminum nanowire polarization filters; post-CMOS fabrication deposition; power 120 mW; In vivo; Optical device fabrication; Optical imaging; Optical polarization; Optical scattering; Optical sensors;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems (ISCAS), 2014 IEEE International Symposium on

Conference_Location

Melbourne VIC

Print_ISBN

978-1-4799-3431-7

Type

conf

DOI

10.1109/ISCAS.2014.6865518

Filename

6865518