|
|
| |
|
Diffraction Grating Characteristics
& Application Experiment |
| |
|
◆ Knowledge
Introduction |
| |
Diffraction grating is
optical components by
using multi-slit
diffraction principle of
optical dispersion, it
is insisted by a large
number of parallel to
each other, equal width,
equal spacing slit or
groove composition.
Because of high
chromatic dispersion and
high resolving power, it
has been widely used in
many fields, such as
agriculture, astronomy,
biology, chemistry,
environment detection
and component detection.
In this experiment, we mainly study the characteristics of
reflective grating, with
clear structure, rich
content, good
operability, students
can understand the
principle of diffraction
grating and monochromator deeply and
improve the ability of
experiment. |
|
| |
|
Main points:
Diffraction phenomenon of
grating and measurement of
diffraction
angle
Second order diffraction
phenomenon of diffraction
grating
The
principle and structure of grating
spectrometer
|
 |
|
|
Experimental device |
| |
|
◆ Instrument
Model |
|
|
STA-DGCA |
| |
|
◆ Related
Courses |
|
|
Spectroscopy, Physical Optics,
Applied Optics, Grating Optics |
| |
|
◆ Basic
Configuration |
| |
|
Name |
Specifications |
|
Monochromator |
Monochromator:
wavelength range:
350-1000 nm; Line number
of grating:
300L/ mm manual
adjustable |
|
CW light source |
Tungsten lamp, the beam
parallel output |
|
Spectrometer |
200-1100nm,
Aurora4000, with
supporting software and
fiber |
|
Mechanical components |
Related components
matched to system |
|
| |
|
|
| |
| |
|
