Circular dichroism spectrum and refractive index measuring system based on linear polarized light incidence
A linearly polarized light, circular dichroism technology, applied in the field of molecular spectroscopy, can solve the problems of expensive instruments, increased circular dichroism test time, and high maintenance costs, and achieves simple test methods, novel measurement methods, and low overall machine cost. Effect
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[0020] The technical solution of the present invention will be specifically described below in conjunction with the accompanying drawings.
[0021] The present invention is a circular dichroism and refractive index measurement system based on linearly polarized light incidence, which includes a supercontinuum light source, a first lens, an adjustable polarizer, a one-dimensional periodic metal groove structure, a second lens, and a spectrometer; the supercontinuum The wide-spectrum continuous light emitted by the continuous light source passes through the first lens to obtain parallel light, and then modulated by an adjustable polarizer into a linearly polarized light at a first angle with the one-dimensional periodic metal groove structure, which is incident on the one-dimensional The chiral sample to be tested on the surface of the periodic metal groove structure, and then the transmitted light is collected by the spectrometer after being focused by the second lens; then the ...
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