Technical Notes
Reliable Spectroradiometry
Reliable spectroradiometry takes a lifetime of work and attention to master. Unreliable spectroradiometry is much easier to accomplish1 all it takes is missing a single critical point, ...
Technical Notes
Introduction to FTIR Spectroscopy
An FT-IR Spectrometer is an instrument which acquires broadband NIR to FIR spectra. Unlike a dispersive instrument, i.e. grating monochromator or spectrograph, FT-IR Spectrometers collect ...
Technical Notes
Simulation of Solar Irradiation
Oriel® Solar Simulators provide the closest spectral match to solar spectra available from any artificial source. The match is not exact, but better than needed for many applications. ...
Technical Notes
Solar Simulator Standards
A solar simulator is a light source that approximates the illumination of natural sunlight. The ability of a solar simulator to approximate natural sunlight is based on three criteria: ...
Technical Notes
Information on Spectral Irradiance Data
The radiometric data shown at the end of this section was measured in our Standards Laboratory. The wavelength calibrations are based on our spectral calibration lamps. Irradiance data ...
Technical Notes
Optical Radiation Terminology and Units
There are many systems of units for optical radiation. In this tutorial, we try to adhere to the internationally agreed CIE system. The CIE system fits well with the SI system of units. ...
Technical Notes
Arc Lamp Spectral Irradiance Data
Spectral irradiance data is shown below for our Arc Lamps. You can click on the curve for a larger image, or on a model number for complete information on a specific arc lamp. Spectral ...
Technical Notes
Optical Detection Systems
In a typical photo-research system, a detector measures the radiant intensity used to evoke photo-response in a sample or the radiant intensity produced by the sample in response to ...
Technical Notes
Oriel® Calibration Light Sources
The most accurate and economical method of wavelength calibration is the spectral calibration lamp. We offer lamps to cover wavelengths from below 185 nm to over 2.5 µm. Be sure to ...
Technical Notes
Solar Simulator Definitions of Characteristics
This glossary briefly defines the terms and units most frequently used in technical discussions around solar simulation.
Technical Notes
Solar Simulator Sample Calculations
The spectral irradiance at any wavelength, Eλ, is in units of watts per square meter per nm (W m-2 nm-1). The value is a measure of the flux per nm at the specified wavelength incident ...
Technical Notes
LEDs Drive the Latest Innovation in Solar Simulator Technology
Newport's PZA Ultra-High Resolution Actuator provides 12.5 mm travel with 50 N load capacity.
Technical Notes
Using Spectral Irradiance Curves
Here we describe our spectral irradiance curves. Again, we caution you on the need for testing of the final configuration particularly when the “total radiation budget” for the system, ...
Technical Notes
Oriel Discontinued & Obsolete Products
These discontinued products are no longer sold by Oriel, but are typically supported for three years from the date on which they were discontinued. Repairs and calibrations are available ...
Technical Notes
Coupling a Fiber to the MS257
Below is a list of Oriel's standard families of fiber optic cables and liquid light guides, and the appropriate adapters to couple them to Oriel® Instruments MS257™ 1/4 m Monochromator ...
Technical Notes
Solar Simulator Spectral Irradiance Data
Spectral irradiance data is shown below for our Solar Simulators. You can click on the curve for a larger image, or on a model number for complete information on a specific solar s ...
Technical Notes
Solar Simulator Curve Normalization
To simplify visual comparison of our simulators' curve shapes with the shapes of the standard solar spectra curves, we scale the measured simulator output, without changing the sha ...
Technical Notes
Bandpass of a Spectrograph
With a spectrograph, the term bandpass refers to the entire wavelength range in the long strip output to the detector. Thus the bandpass in a spectrograph is very wide, limited only ...
Technical Notes
Improving Detector Performance
The constantly improving technology of detectors and wide selection of materials and detection methods allows most light detection needs to be satisfied by fairly simple systems. At ...
Technical Notes
QTH Lamp Spectral Irradiance Data
Spectral irradiance data is shown below for our QTH lamps. You can click on the curve for a larger image, or on a model number for complete information on a specific QTH lamp. Spectral ...
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