We demonstrate the use of CCD image sensors and LCD screens from discarded electronic devices as elements for performing simple optical diffraction experiments. The experiments can determine the spatial structure of these components by analyzing diffraction patterns generated by their interaction with monochromatic light. This article presents the design and results of such experiments.

1.
D.
Halliday
,
R.
Resnick
, and
K. S.
Krane
,
Physics
(
John Wiley & Sons, Inc.
,
New York, USA
,
2001
).
2.
E.
Hecht
,
Optics
, 3rd ed. (
Pearson, Addison-Wesley
,
United States
,
2003
).
3.
T.
Kr. Barik
,
A.
Roy
, and
S.
Kar
, “
A simple experiment on diffraction of light by interfering liquid surface waves
,”
Am. J. Phys.
73
,
725
729
(
2005
).
4.
W. D.
Furlan
,
G.
Saavedra
, and
S.
Granieri
, “
Simultaneous display of all the Fresnel diffraction patterns of one dimensional apertures
,”
Am. J. Phys.
69
,
799
802
(
2001
).
5.
K.
Wosilait
,
P. R. L.
Heron
,
P. S.
Shaffer
, and
L. C.
McDermott
, “
Addressing student difficulties in applying a wave model to the interference and diffraction of light
,”
Am. J. Phys.
67
,
S5
S15
(
1999
).
6.
B. S.
Ambrose
,
P. S.
Shaffer
,
R. N.
Steinberg
, and
L. C.
McDermott
, “
An investigation of student understanding of single-slit diffraction and double-slit interference
,”
Am. J. Phys.
67
,
146
155
(
1999
).
7.
K. K.
Gan
and
A. T.
Law
, “
Measuring slit width and separation in a diffraction experiment
,”
Eur. J. Phys.
30
,
1271
1276
(
2009
).
8.
C.
Lee
,
K.
Shin
,
S.
Lee
, and
J.
Lee
, “
Fabrication of slits for Young's experiment using graphic arts films
,”
Am. J. Phys.
78
,
71
74
(
2010
).
9.
H.
Slogoff
,
J.
Mackowiak
,
M.
Shishkov
, and
A. T.
Johnson
, “
Photolithographic fabrication of diffraction and interference slit patterns for the undergraduate laboratory
,”
Am. J. Phys.
72
,
1328
1334
(
2004
).
10.
P. M.
Lane
,
R. V.
Dommelen
, and
M.
Cada
, “
Compact disc players in the laboratory: Experiments in optical storage, error correction, and optical fiber communication
,”
IEEE Trans. Educ.
44
,
47
60
(
2001
).
11.
H.
Kruglak
, “
The compact disc as a diffraction grating
,”
Phys. Educ.
26
,
255
256
(
1991
).
12.
J. E.
Kettler
, “
The compact disc as a diffraction grating
,”
Am. J. Phys.
59
,
367
368
(
1991
).
13.
C.
Nöldeke
, “
Compact disc diffraction
,”
Phys. Teach.
28
,
484
485
(
1990
).
14.
J. A.
Monsoriu
,
W. D.
Furlan
,
A.
Pons
,
J. C.
Barreiro
, and
M. H.
Giménez
, “
Undergraduate experiment with fractal diffraction gratings
,”
Eur. J. Phys.
32
,
687
694
(
2011
).
15.
M. J.
McIrvin
, “
The Fibonacci ruler
,”
Am. J. Phys.
61
,
36
39
(
1993
).
16.
C.
de Izarra
and
O.
Vallee
, “
On the use of linear CCD image sensors in optics experiments
,”
Am. J. Phys.
62
,
357
361
(
1994
).
17.
J.
Francés
,
M.
Pérez-Molina
,
S.
Bleda
,
E.
Fernández
,
C.
Neipp
, and
A.
Beléndez
, “
Educational software for interference and optical diffraction analysis in Fresnel and Fraunhofer regions based on Matlab GUIs and the FDTD method
,”
IEEE Trans. Educ.
55
,
118
125
(
2012
).
18.
D. J. R.
Cristaldi
,
S.
Pennisi
, and
F.
Pulvirenti
,
Liquid Crystal Display Drivers: Techniques and Circuits
(
Springer Science + Business Media B.V.
,
Berlin
,
2009
).
19.
J. R.
Janesick
,
Scientific Charge-Coupled Devices
(
SPIE Publications
,
Bellingham, Washington USA
,
2001
).
20.
A. J. P.
Theuwissen
,
Solid-State Imaging With Charge-Coupled Devices
(
Springer Science + Business Media B.V.
,
Berlin
,
1995
).
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