Monochromator, CS130B, 1/8 m, Holographic, Fixed Slits

The CS130B-2-FH is a high performance, economical, and user-friendly monochromator. By integrating a Newport motion stage, scan speed is faster, wavelength accuracy is doubled, and wavelength precision is greatly increased over the original models. It utilizes larger gratings for improved the optical throughput and reduced spillover. A robust mechanical design and optical mounting configuration has increased rigidity and reproducibility. This model includes both USB and RS232 communication ports.  The instrument is fully calibrated with the 250 and 500 nm blaze wavelengths holographic gratings, and includes a built-in shutter. The input and output slits are pre-configured with fixed slits. It is designed to be compatible with the Oriel^® Filter Wheel model USFW-100 and the APEX2 Illuminator.

Cornerstone 130B Overview

This video presents an overview of the Cornerstone 130B 1/8m monochromator's features and its Mono-Utility user interface software capabilities. It also demonstrates a quick guide to product configuration and setup.

Improvements Over Legacy Model

The CS130B monochromator is a redesigned and greatly improved instrument over its predecessor. Integrating a Newport motion stage, scan speed is faster, wavelength accuracy is doubled, and wavelength precision is greatly increased over the original models. Utilizing larger gratings has improved the optical throughput and reduced spillover. A robust mechanical design and optical mounting configuration has increased rigidity and reproducibility. Communication protocols have been updated, greatly reducing timeout errors and improving overall speed and efficiency.

Delivered Fully Assembled and Aligned

The CS130B is assembled, pre-aligned, and calibrated at the factory, so it is ready for immediate use. The diffraction gratings are installed on a grating mount and factory aligned. A micrometer slit or fixed slit holder is installed at the input and output port. Included with each instrument are LabVIEW™ based utility software, MonoTerm low-level command software, a user’s manual, and a certificate of calibration. A DC power supply and line cords for the US and Europe are also included.

Optical System Efficiency

CS130B Holographic models use two holographic gratings that are better suited for UV applications and produce less scattering- refer to our tutorial for more information. The efficiency curves are relative (not absolute) calculations and should only be used as a guide to approximate actual instrument performance. The graph above models the complete optical system- from entrance to exit slit of the monochromator, not only the diffraction gratings.

Fixed Slits

Fixed slits should be used for the utmost accuracy and repeatability, especially at high resolution. Fixed slits are the best option when only a few slit sizes are required, as they are less expensive. The fixed slits slide into the holder at the input port, as well as the holder at the lateral output port on dual output models. The width and height cannot be adjusted, but may be individually replaced with other slit sizes. Individual fixed slits are required and sold separately to allow customized choices based on the needs of the application (see accessory section). Order two identical fixed slits for the CS130(B) monochromator. The slit width is one of the factors determining the resolution and throughput of the instrument, with a narrow slit providing higher resolution and lower throughput.

Monochromator Mounting

The optional 74006 mounting plate can be used to secure a CS130B monochromator to an inch or metric optical table. The ability to mount the instrument simplifies the setup and alignment of the optical system. The mounting plate also ensures consistent results over time, as the monochromator cannot be accidentally moved out of position. Additional mounting kits are available if connecting to an Oriel lamp housing. Threaded holes on the mounting surface of the monochromator allow the instrument to be optical rod mounted, if desired.

Long Life Instrument

These instruments continue to function for many years. With proper care, they only require periodic maintenance to ensure that gears are lubricated, spring tension is correct, etc. It is suggested that the instrument be sent to Newport annually for recalibration, in order to meet its performance specifications. During recalibration, the instrument is thoroughly examined, and routine maintenance services are performed.