13.07.2015 Views

Full set of Notes with Fill-Ins - San Jose State University

Full set of Notes with Fill-Ins - San Jose State University

Full set of Notes with Fill-Ins - San Jose State University

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

Chem 155 Unit 6 Page 129 <strong>of</strong> 316Grating ResolutionResolution may be limited by the size <strong>of</strong> the grating aswell. The grating resolution, R, is given by:R ≡ λ / Δλ = nNn =N =Diffraction orderNumber <strong>of</strong> grooves <strong>of</strong> the grating that areilluminatedGrating resolution imposes a kind <strong>of</strong> effectivebandwidth limitation Δλ just like the Δλ EFF definedabovePlease note these three things:1. Both grating resolution and effective band<strong>with</strong>define a minimum resolvable Δλ for themonochromator.2. A given monochromator will be limited by theworse <strong>of</strong> the two parameters.3. This is usually Δλ EFFPage 129 <strong>of</strong> 316

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!