【摘要】：基于全息光學(xué)理論分析了全息光學(xué)元件的高斯成像性質(zhì),包括光焦度、成像位置、衍射效率以及作為光纖光譜儀光柵元件的可行性,并以全息光柵的成像理論以及光譜儀工作原理為基礎(chǔ),設(shè)計了光譜儀器光學(xué)系統(tǒng)的各個參數(shù),通過Zemax軟件的仿真、像質(zhì)評價及優(yōu)化,得出最終的參數(shù)和模擬結(jié)果。所使用的全息光柵記錄波長為575nm,記錄光束之間的夾角為10°,一束為平面波,一束為球面波,焦距40mm,使用+1級衍射光,光柵孔徑為10mm。光譜儀的工作波長范圍為400nm~800nm,體積140mm*30mm*40mm,譜面展寬29.1mm。通過在光學(xué)平臺上搭建光路,利用已研發(fā)完成的電路系統(tǒng)及光譜儀軟件,針對汞燈光譜進(jìn)行了試驗,光譜分辨率優(yōu)于8nm,測量得到的汞燈光譜與標(biāo)準(zhǔn)汞燈光譜一致,表明了所設(shè)計的基于全息元件的光纖光譜儀光學(xué)系統(tǒng)是可行的。
[Abstract]:Based on holographic optics theory, the Gaussian imaging properties of holographic optical elements, including focal degree, imaging position, diffraction efficiency and feasibility as fiber spectrometer grating elements, are analyzed. Based on the imaging theory of holographic gratings and the working principle of spectrometer, the parameters of the optical system of spectral instruments are designed. Through the simulation, image quality evaluation and optimization of Zemax software, the final parameters and simulation results are obtained. The recording wavelength of the holographic grating is 575nm, the angle between the recorded beams is 10 擄, one is a plane wave, the other is a spherical wave, and the focal length is 40mm. The aperture of the grating is 10mm when the first order diffraction light is used. The working wavelength range of the spectrometer is 400 nm 鈮，

本文編號：2507177