Multispectral imaging system using acousto-optic tunable filter (AOTF)

This paper describes the development of a multispectral imaging (MSI) device using AN acousto-optic tunable filter (AOTF). A two-dimensional charge-coupled device (CCD) was used as a detector. The AOTF was used as a wavelength selector. Unlike a tunable grating or prism based monochromator, the tunable filter has no moving parts, and it can be rapidly tuned to any wavelength in its operating range. The large aperture of the AOTF and its high spatial resolution allowed the optical image from an IFP to be recorded by the CCD. These characteristics, combined with their small size, make AOTFs important new alternatives to conventional monochromators, especially for spectral imaging in biomedical applications.

Duke Scholars

Author Tuan Vo-Dinh Biomedical Engineering