Spatial light modulators (SLMs) are a versatile tool for teaching optics, but the cost associated with an SLM setup prevents its adoption in many undergraduate and graduate optics labs. We describe a simple method for creating a low-cost SLM by extracting components from a commercial LCD projector. We demonstrate the pedagogical applications of this SLM design by providing examples of its use in teaching diffraction and interference phenomena. We also discuss an SLM’s potential as a research tool in graduate labs. In particular, we demonstrate its use in holography and in the generation of optical vortices.
REFERENCES
1.
A. M.
Weiner
, “Femtosecond pulse shaping using spatial light modulators
,” Rev. Sci. Instrum.
71
, 1929
–1960
(2000
). 2.
K.
Johnson
and G.
Moddel
, “Motivations for using ferroelectric liquid crystal spatial light modulators in neurocomputing
,” Appl. Opt.
28
, 4888
–4899
(1989
). 3.
P.
Kumar
, J.
Joseph
, and K.
Singh
, “Optical image encryption using a jigsaw transform for silhouette removal in interference-based methods and decryption with a single spatial light modulator
,” Appl. Opt.
50
, 1805
–1811
(2011
). 4.
A. K.
Jayasinghe
, J.
Rohner
, and M. S.
Hutson
, “Holographic UV laser microsurgery
,” Biomed. Opt. Express
2
, 2590
–2599
(2011
). 5.
I.
Mariyenko
, J.
Strohaber
, and C.
Uiterwaal
, “Creation of optical vortices in femtosecond pulses
,” Opt. Express
13
, 7599
–7608
(2005
). 6.
A.
Carpentier
, H.
Michinel
, J.
Salgueiro
, and D.
Olivieri
,“Making optical vortices with computer-generated holograms
,” Am. J. Phys.
76
, 916
–921
(2008
). 7.
J. F.
Nye
and M. V.
Berry
, “Dislocations in wave trains
,” Proc. R. Soc. London, A
336
, 165
–190
(1974
). 8.
J. L.
Martínez
, “Diffraction and signal processing experiments with a liquid crystal microdisplay
,” Eur. J. Phys.
1221
, 1221
–1231
(2006
). 9.
N.
Ferralis
, A. W.
Szmodis
, and R. D.
Diehl
, “Diffraction from one- and two-dimensional quasicrystalline gratings
,” Am. J. Phys.
72
, 1241
–1246
(2004
). 10.
E.
Schonbrun
, R.
Piestun
, P.
Jordan
, J.
Cooper
, K.
Wulff
, J.
Courtial
, and M.
Padgett
, “3D interferometric optical tweezers using a single spatial light modulator
,” Opt. Express
12
, 3777
–3786
(2005
). 11.
C.
Maurer
, A.
Jesacher
, S.
Fürhapter
, S.
Bernet
, and M.
Ritsch-Marte
, “Tailoring of arbitrary optical vector beams
,” New J. Phys.
9
, 78
(2007
). 12.
S.
Tao
, W.
Lee
, and X.
Yuan
, “Dynamic optical manipulation with a higher-order fractional Bessel beam generated from a spatial light modulator
,” Opt. Lett.
28
, 1867
–1869
(2003
). 13.
Y.
Takaki
and J.
Nakamura
, “Zone plate method for electronic holographic display using resolution redistribution technique
,” Opt. Express
19
, 14707
–14719
(2011
). 14.
K.T.
Kapale
and J. P.
Dowling
, “Vortex phase qubit: Generating arbitrary, counter-rotating, coherent superpositions in Bose-Einstein condensates via optical angular momentum beams
,” Phys. Rev. Lett.
95
, 173601
(2005
). 15.
D. G.
Grier
, “A revolution in optical manipulation
,” Nature (London)
424
, 810
–816
(2003
). 16.
Z.
Cao
, L.
Xuan
, L.
Hu
, Y.
Liu
, Q.
Mu
, and D.
Li
, “Investigation of optical testing with a phase-only liquid crystal spatial light modulator
,” Opt. Express
13
, 1059
–1065
(2005
). 17.
A.
Bergeron
, J.
Gauvin
, F.
Gagnon
, D.
Gingras
, H.
Arsenault
, and M.
Doucet
, “Phase calibration and applications of a liquid-crystal spatial light modulator
,” Appl. Opt.
34
, 5133
–5139
(1995
). 18.
L.
Hu
, L.
Xuan
, Y.
Liu
, Z.
Cao
, D.
Li
, and Q.
Mu
, “Phase-only liquid crystal spatial light modulator for wavefront correction with high precision
,” Opt. Express
12
, 6403
–6409
(2004
). 19.
N.
Karasawa
, L.
Li
, A.
Suguro
, H.
Shigekawa
, R.
Morita
, and M.
Yamashita
, “Optical pulse compression to 5.0 fs by use of only a spatial light modulator for phase compensation
,” J. Opt. Soc. Am. B
18
, 1742
–1746
(2001
). 20.
A.
Tai
, “Low-cost LCD spatial light modulator with high optical quality
,” Appl. Opt.
25
, 1380
–1382
(1986
). 21.
F.
Mok
, J.
Diep
, H.
Liu
, and D.
Psaltis
, “Real-time computer-generated hologram by means of liquid-crystal television spatial light modulator
,” Opt. Lett.
11
, 748
–750
(1986
). © 2012 American Association of Physics Teachers.
2012
American Association of Physics Teachers
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