The lightwave field possesses several dimensional properties,including amplitude,spectrum,phase,and polarization.Multidimensional measurements of lightwaves have diverse applications ranging from remote sensing to ana...The lightwave field possesses several dimensional properties,including amplitude,spectrum,phase,and polarization.Multidimensional measurements of lightwaves have diverse applications ranging from remote sensing to analytical chemistry.However,achieving high-resolution simultaneous multi-dimensional measurement of lightwaves remains challenging.In this work,we demonstrate an all-fiber spectropolarimeter based on a speckle pattern obtained from the end of a multi-mode fiber.The proposed system simultaneously achieves a spectral resolution of 100 pm and a polarization resolution of 0.001437.The polarization measurement errors for three Stokes parameters are 3.37%,1.01%,and 0.84%,respectively,with a mean squared error of 5.3×10^(-5).This work provides novel potential for high-resolution and accurate multi-dimensional lightwave field measurements.展开更多
In the sample compartment of a conventional spectrophotometer, mounting of a polarizer before sample and an analyzer behind sample allows the determination of the optical rotatory dispersion of optical active media by...In the sample compartment of a conventional spectrophotometer, mounting of a polarizer before sample and an analyzer behind sample allows the determination of the optical rotatory dispersion of optical active media by measurement of the transmission ratio of crossed and parallel arranged polarizer and analyzer. A formula for the determination of the angle of rotation is derived from the transmission ratio. The arrangement is applied to determine the molar optical rotation of D-glucose in water in the wavelength range from 220 nm to 820 nm.展开更多
基金supported by the National Natural Science Foundation of China(No.62275151)。
文摘The lightwave field possesses several dimensional properties,including amplitude,spectrum,phase,and polarization.Multidimensional measurements of lightwaves have diverse applications ranging from remote sensing to analytical chemistry.However,achieving high-resolution simultaneous multi-dimensional measurement of lightwaves remains challenging.In this work,we demonstrate an all-fiber spectropolarimeter based on a speckle pattern obtained from the end of a multi-mode fiber.The proposed system simultaneously achieves a spectral resolution of 100 pm and a polarization resolution of 0.001437.The polarization measurement errors for three Stokes parameters are 3.37%,1.01%,and 0.84%,respectively,with a mean squared error of 5.3×10^(-5).This work provides novel potential for high-resolution and accurate multi-dimensional lightwave field measurements.
文摘In the sample compartment of a conventional spectrophotometer, mounting of a polarizer before sample and an analyzer behind sample allows the determination of the optical rotatory dispersion of optical active media by measurement of the transmission ratio of crossed and parallel arranged polarizer and analyzer. A formula for the determination of the angle of rotation is derived from the transmission ratio. The arrangement is applied to determine the molar optical rotation of D-glucose in water in the wavelength range from 220 nm to 820 nm.
