Monochromator, 1/8 m, Holographic, Micrometer Slits

The CS130B-2-MC 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 micrometer driven 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.

Micrometer Adjustable Slits

Micrometer adjustable slits offer flexibility and high throughput, but are not as accurate or repeatable as fixed slits. The micrometer adjustable slit assembly is continuously variable from fully closed to 3 mm width. The narrowest practically achievable width is 4 µm. A height adjustment slide allows variation in the height from 2 to 12 mm. This type of slit is designed primarily for versatility and convenience in changing resolution and 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.