PASCO OS-8454 High Precision Diffraction Slits - Manual

I n s tr u c t i o n S he e t
0 1 2 - 1 0 3 5 1 A
800-772-8700 www.pasco.com
®
High Precision Diffraction Slits
OS-8454
Included Parts
1. Single-slit wheel with holder
2. Double-slit wheel with holder
Additional Parts Required
• Introductory Optics Diode Laser, OS-8528A
• Introductory Optics System, part of OS-8500
Introduction
Model OS-8454 includes two slit wheels with holders designed
for use on an Introductory Optics bench with a laser and other
Introductory Optics components. Each wheel contains several
slits and other patterns. The wheels can be rotated to change the
slit pattern illuminated by the laser.
Set-up
1. Place one of the wheels onto an optics bench with a laser as
illustrated. Place a screen further along the track.
2. Aim the laser at the slit
pattern in the “9 o’clock”
position.
3. Turn the wheel to select
the slit pattern to be illu-
minated by the laser.
4. Observe the diffraction
pattern on the screen.
1
2
laser
diffraction slit
wheel
bench
0. 4 m
m
0. 2m
m
a= 0.0 8 LIN E
A PE
R
TU
R
E
S
LIN
E/
SL
IT
D IA
a=: s lit width in mm
D IA
0.16
SI
NG
LE
SL
ITS
a =
0.0
2 to
0.2
0
PAT
TER
NS
C
IR
C
U
LA
R
VA
RIA
BL
E
SL
IT
HIGH PRECISION
DIFFRACTION SLITS
SINGLE
SLITS
0.08
0.0
4
0. 02
a=
:
SQ
UA
RE
HEX
DOT S HO LES
®
selected
slit