High-resolution grating areas with none stitching error are in demanding needs but usually expensive and hard to prepare.
This technology is suitable for producing large area high resolution gratings to reduce the research cost, and can be applied to applications such as DFB laser production, LED substrates preparation and other relative fields.
Modern tunable lasers can easily resolve spectral features less than 106 hertz wide, while the highest-resolution grating spectrometers have resolutions that are hundreds of times lower.
The spectrograph used a high-resolution grating (1800 grooves cm 1) with additional band-pass filter optics, a confocal microscope and a 2D-CCD camera.
Surface-enhanced Raman scattering was measured with a confocal Raman microscope (LabRAM Division, HORIBA Jobin Yvon) equipped with a high-resolution grating (1800 grooves/mm), a Peltier-cooled CCD camera (−70 °C, Synapse) and a HeNe laser as excitation line at 633 nm.
The XANES measurements were conducted on the high resolution spherical grating monochromator (SGM) [21] and variable line spacing plane grating monochromator (VLS PGM) [22] beamlines at the Canadian Light Source synchrotron facility.
The high resolution of fiber Bragg grating (FBG) sensor and its ability to provide real-time monitoring make it a potential candidate for steel corrosion detection.
A new spectroscopic filter constructed with a high-spectral-resolution grating and two narrow-band mirrors is designed to separate the elastic scattering and the vibrational Raman scattering spectra in an ultraviolet (UV) Raman lidar system.
At the same time the monochromator is designed to cover the energy range from 75 to 1500 eV using the same two gratings at high resolution for spectroscopy.
Two alternative instrument designs to the traditional Rowland grating spectrometer for high resolution ultra-soft X-ray spectroscopy are presented.
The suite of available detectors for Gen-X should include a large-area high resolution imager, a cryogenic imaging spectrometer, and a grating spectrometer.
