Tests of a compact static Fourier-transform imaging spectropolarimeter

Area of Science:

• Optics and Photonics
• Remote Sensing

Background:

• Traditional imaging spectropolarimeters often involve complex internal moving parts or specialized polarization components.
• Acquiring simultaneous spectral and polarization information across a wide spectral range has been a challenge.

Purpose of the Study:

• To present a novel compact Fourier-transform imaging spectropolarimeter.
• To demonstrate its capability for simultaneous acquisition of spectral, spatial, and polarization information without internal moving parts.

Main Methods:

• Development of a compact Fourier-transform imaging spectropolarimeter.
• Utilized two birefringent retarders and a Wollaston interferometer.
• Operated across a 450-1000 nm spectral range.

Main Results:

• The sensor successfully acquired full wavelength-dependent polarization state, spectral, and spatial information simultaneously.
• Demonstrated advantages over previous implementations due to the absence of internal moving parts and electrically controllable components.
• Outdoor measurements validated its potential for practical applications.

Conclusions:

• The developed imaging spectropolarimeter offers a significant advancement in sensor technology.
• Its compact design and simultaneous data acquisition capabilities make it suitable for diverse applications.
• Potential applications include color measurement, target identification, and agriculture monitoring.