Dec 27, 2025
Basically, a spectrometer is an optical system consisting of two lenses/mirrors that produces an image of the input slit on the detector. In between the lenses/mirrors is placed a diffraction grating which
Apr 24, 2026
The incident radiation from the entrance slit passes the collimation mirror on the scanner mirror before it is diffracted by the fi xed grating in the optical path.
Nov 24, 2025
In this study, we propose a rotating spectrometer design based on a double-sided mirror. The moving part of the spectrometer is driven by a rotating motor to ensure stable rotational speed
Oct 02, 2025
We make instruments from short focal length, high-throughput spectrographs to long focal length, high-resolution monochromators, with a variety of choices for many different applications.
Apr 05, 2026
Such concave mirrors—precisely formed glass surfaces coated with a reflective film of metal—are used in spectroscopic instruments to gather light from a sample onto a diffraction grating that then splits
Jun 22, 2026
Although it is not commonly found in spectrometers today, it is still used to characterize diffraction gratings. This configuration consists simply of a spherical mirror and a plane grating. The light enters
Oct 08, 2025
The Czerny-Turner design, featuring toroidal mirrors and diffraction gratings, enables asymmetrical optimization for reduced aberrations. Performance specs
Oct 04, 2025
The resulting astigmatism can be countered for a single wavelength by making the grating surface a toroid, by changing the mirror distance, or by splitting the large mirror . However, in a conventional
Feb 21, 2026
2. Types of Mirrors The following types of mirrors are used to fulfill the roles of lenses and prisms in the FTIR.
Nov 12, 2025
Instrumentation of a UV-Visible Spectrophotometer The principle of measurement for UV-Visible Spectroscopy or UV-Visible spectrophotometer is relatively
Oct 01, 2025
The use of a dual-interference channels static Fourier transform imaging spectrometer based on stepped micro-mirror (D-SIFTS) for
Dec 12, 2025
There are two types of instruments used to measure IR absorption: Fourier transform (FT) spectrometers and dispersive spectrometers. FTIR spectrometers
Nov 02, 2025
This spectrometer is based on the Offner imaging system comprising a concave primary and tertiary mirror and a convex secondary mirror. In the spectrometer design, the secondary mirror is replaced
Jul 02, 2026
Specifically, has implemented a Czerny-Turner type spectrometer, which is a two-mirror design.
Nov 13, 2025
SCANNING MIRROR MICRO SPECTROMETER (SMMS) Motivation Compact and ultra-compact systems for nearinfrared (NIR) spectral analysis enabling the integration into portable devices or
Oct 15, 2025
In this paper, we propose a novel double-pass spectrometer model, which consists of a single planar grating and a single freeform mirror. The freeform mirror performs both collimation and
Dec 10, 2025
Here we introduced and discussed the use of the mirror in FTIR. In the Shimadzu FTIR, the infrared light can be taken out as parallel light from the side of the instrument.
Mar 23, 2026
The Bruker ALPHA II Fourier Transform Infrared (FTIR) Spectrometer is a compact, high-performance benchtop instrument engineered for precision molecular identification and quantitative analysis
Jul 25, 2025
This type of filter is not common in modern spectrometers now that there are more precise elements available for narrowing the radiation. There are also
Aug 31, 2025
The two light beams are reflected by the fixed mirror and movable mirror and return to the beam splitter, where they are recombined, causing optical interference. The photodetector acquires light intensity
Apr 10, 2026
Different types of IR spectrometers. (A) Basic concept of a typical Fourier-transform infrared spectrometer showing light source (Globar), beam splitter, fixed and
Aug 30, 2025
Learn everything about optical spectroscopy and how to configure the right settings for optimal use for your usecase. Read more.
Nov 26, 2025
Such spectrometers cannot meet high-resolution spectroscopy requirements. To address this problem, this paper proposes an immersion
Oct 24, 2025
This spectrometer design is not symmetric, and the two mirrors do not have to be the same size, have the same radii of curvature or be located at the same
Nov 13, 2025
The principles and correction methods of various aberrations of the cross-type spectrometer are analyzed, the cylindrical mirror is used to correct the astigmatism of the system,
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