1/8 m Monochromator, Hand Operated, Micrometer Driven Slit Assembly

The 77250B-MC is a fully assembled, pre-aligned, Hand Operated Monochromator. The monochromator is based on an Ebert-Fastie design, placing the grating out of the path of the entrance and exit slits, to eliminate re-entrant spectra. The hand operated design allows for output wavelength adjustment as accurate as 1 nm via a four digit counter display, with 0.1 nm adjustment resolution based on horizontal markings on the counter.  The input and output micrometer adjustable slit assemblies are ideal for general laboratory or academic use, in which a versatile, conveniently adjustable slit height and width are desirable. They also provide a larger dimensional adjustment range and higher throughput than the fixed slit version of this monochromator, the 77250B-FH. The included micrometer driven slit assemblies 74001 have an adjustable slit width from fully closed to 3 mm (4 µm minimum achievable open width) and a slit height adjustable from 2 to 12 mm. The 77250B-MC monochromator base model doesn't include a grating yet. We offer a variety of 77250B diffraction gratings, which are sold separately, covering a wavelength range from 200 nm to 23 µm. They can be easily installed and interchanged, depending on the needs of your application. An optional 77387 mounting kit can be purchased seperately to mount the monochromator in a setup with an easily adjustable optical axis height to match that of a source and/or detector.