Pinhole assembling and adjusting method for wide-spectrum high-resolution echelle grating monochromator

Abstract

The invention provides a pinhole assembling and adjusting method for a wide-spectrum high-resolution echelle grating monochromator. The pinhole assembling and adjusting method comprises the steps that S1, product structure parts to be assembled and adjusted are prepared; S2, a pinhole seat is installed on a shell, then pinholes are formed in the pinhole seat, and then a pinhole pressing ring is installed; S3, a pinhole seat pressing ring is installed, light beams emitted by a laser device are emitted to the surface of a plane mirror, and light spots are reflected back to a light outlet of the laser device through the plane mirror; S4, the position of the pinholes is adjusted, an optical fiber pinhole gland is detached, a sealing ring is installed, then window glass is installed, and finally a window glass pressing ring is installed; S5, element lamps are connected, the full width at half maximum of the spectral lines of the element lamps is observed, the resolution is calculated, and when the resolution reaches 0.01 nm, the installation is qualified; the method has the advantages that a few professional auxiliary devices are needed, complicated and judgment links in the assembling and adjusting process are simplified, the experience of an assembling and adjusting person is little, and the blank of the assembling and adjusting method for pinholes of the wide-spectrum high-resolution echelle grating monochromator is filled up.

Description

technical field [0001] The invention belongs to the field of spectrum technology, and more specifically relates to a pinhole installation method for a wide-spectrum high-resolution echelle grating monochromator. Background technique [0002] The adjustment method and accuracy of the pinhole of the wide-spectrum high-resolution echelle monochromator directly affect the resolution, the most important technical index of the monochromator. At present, there are many adjustment methods involving high-precision optical instruments at home and abroad, and the discussions on the adjustment methods of echelle monochromators or echelle spectrometers are also increasing year by year, but most of them stay in the discussion of conceptual methods , without further description on how to implement it. For example, in the article "Precise Setup and Calibration of High-Resolution Echelle Spectrometer" written by Chen Shaojie of the Chinese Academy of Sciences, a brief discussion is made on ...

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Problems solved by technology

However, this kind of discussion has not played any beneficial role in the entire assembly and adjustment process or even the entire grating monochromator production and processing industry.

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