12 Z 4, pp. 1116∼1120
ý m
Ç ¨ 8 c õ u § T Ó Þ X ¢ ³ 7 _§ x W Ä m < gX c l
ø ¶ B * > · L |< * >
· ¡ ¤ @ / < Æ § õ < Æ §¹ ¢ ¤ < ÆÂ Ò, Å Ò 561-756
(2011¸ 10 Z 4 17{ 9 ~ Ã Î6 £ §, 2011¸ 11 Z 4 14{ 9 Ã º& ñ : r ~ Ã Î6 £ §, 2011¸ 12 Z 4 1{ 9 > F S X & ñ )
633 nm _ © \ " f 1 l x H á ÔY U3 A q ½ ¨% i ó ø Í` ¦ 9 2 £ § B j \ ¦ s 6 x # ] j ¦, É Òo \ -Z ! s q
¨ 8
` ¦ s 6 x # Å Òl & h 1 l xd " é ¶ ½ ¨ ¸\ ¦ ° ú H ½ ¨% i ó ø Í\ _ ô Ç \ [ t s & ³ © ` ¦ á ÔY U3 A q_ \ [ t s ¸| \
"
f [ O " î % i . y y í < Ê H ½ ¨% i _ Ã º É r á ÔY U3 A q ½ ¨% i ó ø Í` ¦ ï r q # He-Ne Y Us $ F g ` ¦ | 9 F
g H 0 p x§ 4 ` ¦ z ´+ « >& h Ü ¼ Ð ¨ î % i .
Ù þ
d # Q: \ [ t s & ³ © , ½ ¨% i ó ø Í, 9 2 £ § B j
Demonstration of a Zone Plate Working at the Wavelength of Visible Light by Using Film Camera
Jong-Min Park · Jai-Min Choi ∗
Division of Science Education, Chonbuk National University, Jeonju 561-756 (Received 17 October 2011 : revised 14 November 2011 : accepted 1 December 2011)
We demonstrate fabrication of a Fresnel zone plate designed for visible light, specifically a 633 nm He-Ne laser beam, by using a film camera. The magnified zone plate structure was imaged onto the image plane of a film camera with a proper demagnification factor; thereafter, the film was developed to serve as a zone plate lens. A Fourier-Bessel transform of the concentric zone plate structures yields the resulting diffraction patterns, and the corresponding intensity profiles at the focal point of zone plate lenses containing different number of zones were measured experimentally.
PACS numbers: 42.25.Fx, 42.79.Ci
Keywords: Fresnel diffraction, Zone plate, Film camera
I. " e  ] Ø
á
ÔY U3 A q \ [ t s Ð l Õ ü t ÷ & H ½ ¨% i ó ø Í(zone plate)\ @ /ô Ç
½ ¨ H s p 19[ jl Ê êì ø Í Rayleighü < Soret 1 p x \ _ K Ð
¦÷ &% 3 Ü ¼ 9 [1], y n C_ 1 l x$ í Ü ¼ Ð K H \ [ t s
&
³ © õ ç ß [ O & ³ © ` ¦ 6 £ x6 x ô Ç õ s . F g < Æì r \ " f ½ ¨
%
i ó ø Í` ¦ s 6 x ô Ç @ /³ ð& h 6 £ x6 x Y V H & h ] X ô Ç Ï ã J] X Ò ¦` ¦
Ó ü t| 9 ` ¦ ¹ 1 Ôl # Q 9î r x-ray % ò % i _ F g ` ¦ s \ ¦ s 6 x
# | 9 5 Å q H ½ ¨ ' ÷ &% 3 Ü ¼ 9 [2], þ j H : £ ¤ Ã ºô Ç ~ ½ Ó
∗
E-mail: [email protected]
d
_ á ÔY U3 A q ½ ¨% i ó ø Í` ¦ s 6 x # 10 nm_ ì r K 0 p x` ¦ % 3 É r
Y V Ð ¦÷ & H 1 p x [3] B Ä º Ö ¸ µ 1 Ïy ½ ¨÷ & ¦ e H ì r s
. ½ ¨% i ó ø Í_ 6 £ x6 x Y V H q é ß y n C_ 1 l x$ í ` ¦ s 6 x ô Ç ì
r \ ë ß ² D G ô Ç÷ &t · ú § ¦ { 9 _ Ó ü t| 9 (matter wave) :
£ ¤$ í ` ¦ ¦ 9 # ½ ¨% i ó ø Í` ¦ 6 x ô Ç × æ$ í | 9 5 Å q z ´+ « > [4], He " é ¶ c | 9 5 Å q z ´+ « > [5, 6], ÐÝ ¼- / ' 6 £ x» ¡ ¤ Ó ü t| 9 _
½ ¨% i ó ø Í ½ ¨ ¸\ @ /ô Ç ª % i < Æ& h ì ø Í Ö ¦ 8 £ ¤& ñ [7] 1 p x \
$ í
/ B N& h Ü ¼ Ð & h 6 x ÷ & " f 1 l x F g < ÆÜ ¼ Ð l Õ ü t ÷ & H % ò % i ` ¦ { 9
Ð s À Ò# Q r Û ¼% 7 \ s Ø Ôl t V , y > ÷ &% 3 .
¢
¸ô Ç l Õ ü t _ µ 1 Ï \ Ð [ jx 9 ô Ç ½ ¨ ¸\ ¦ ° ú H ½ ¨% i ó
ø Í_ ] j s 0 p x K f \ F g < Æ s p f ç \ " f ì r K 0 p x
-1116-
Fig. 1. Illustration of coordinate systems for Fresnel zones and its diffraction patterns.
¾ Ó © \ ¸¹ ¡ § s ÷ & H Ð H ¸o > hà º\ ¦ ] j H כ s
0 p x K & Ü ¼ 9 [8], s \ ¦ s 6 x # F g < Æ s p f ç _ ì r K 0 p x
`
¦ ¾ Ó © r v l 0 Aô Ç ½ ¨ [9] Õ ªo ¦ { 9 ì ø Í& h F g < ÆE $ Ý ¼
\
¦ 6 x ô Ç F g | 9 > Ð H 6 x à º^ o = © à º\ ¦ ° ú H F g < Æ( J $ [ >
Ä ºÓ ü t` ¦ + þ A$ í r & " f p [ j { 9 \ ¦ í S \ ¦ ¸ H z
´+ « >\ 6 x ÷ & ¦ e [10,11].
: r ½ ¨\ " f H Ê ê ¸p ' ß ¼l _ { 9 \ ¦ F g í S \
#
¸{ 9 _ q ¦ & h î r1 l x © I \ ¦ ½ ¨ & ³ l 0 Aô Ç l
í ½ ¨ Ð+ , ½ ¨% i ó ø Í_ E $ Ý ¼ ´ òõ \ ¦ s 6 x K " f F g ` ¦ | 9 F
g # F g ( J $ [ > Ä ºÓ ü t` ¦ + þ A$ í r v H ½ ¨ü < í S \ ) a { 9
ÐÂ Ò' µ 1 ÏÒ q t H + þ AF g ñ\ ¦ ´ òÖ ¦& h Ü ¼ Ð Ø ¦ l 0 A ô
Ç Z } É r ¸o > hà º\ ¦ ° ú H F g Ø ¦ r Û ¼% 7 ` ¦ ½ ¨ & ³ H כ õ
' aº # , r F g % ò % i \ " f 1 l x H ½ ¨% i ó ø Í` ¦ 9 2
£
§ B j \ ¦ 6 x # r + « >] j ¦ ¨ î % i . ¢ ¸ô Ç
: r ½ ¨_ õ & ñ õ õ H @ / < Æ_ < ÆÂ Ò õ & ñ \ " f F g < Æõ
'
aº ô Ç z ´+ « >Ü ¼ Ð Ö ¸6 x| ¨ c à º e ` ¦ כ s .
II. ³ 7 _§ x > H± n ÇÊ Ý W Ä m
½
¨% i ó ø Í\ _ ô Ç \ [ t s & ³ © É r { 9 ì ø Í& h © S ! ` ¦ l Õ ü t
H á ÔY U3 A q-v Ø Ôy ñá Ô & h ì r` ¦ á ÔY U3 A q ½ ¨% i \ & h 6 x #
è q à º e . Õ ªa Ë > 1\ · p ü < ° ú s & h F g " é ¶(S) \
"
f ~ ½ ÓØ ¦ ) a F g s F g " é ¶ Ü ¼ ÐÂ Ò' z
1_ o ë ß p u b # Q ξ − η ¨ î \ 0 Au ô Ç á ÔY U3 A q ½ ¨% i ó ø Í\ " f r] X # x − y
¨ î
\ H \ [ t s Á º] (_ Û ¼º ú ; ¤ É r H» ¡ ¤F g
¸| ` ¦ & h 6 x d (1)õ ° ú s Å Ò# Q [12,13].
U (x, y) = − iu
0λz
1z
2e
ik(z1+z2)e
ik(x2+y2)/2z2× Z Z
∞−∞
T (ξ, η)e
ikz1+z22z1z2(ξ2+η2)e
−ik(ξx+ηy)/z2dξdη . (1)
#
l " f u
0 H F g " é ¶ _ 0 Au \ " f ; ¤ _ ß ¼l , k(= 2π/λ) H
à º, Õ ªo ¦ T (ξ, η) H ¸o > h < Êà º Ð ½ ¨% i ó ø Í ? / Ò\ " f
½
¨% i ó ø Í_ ½ ¨ ¸\ & ñ _ ÷ & H < ÊÃ ºs 9 1 l x _ ; ¤ õ
0 A © ` ¦ ¸ ½ + É Ã º e H < ÊÃ ºs . 0 A_ õ ÐÂ Ò' Û ¼ ß
¼ 2 ;(x − y ¨ î )\ H r] X Á º] (_ ; ¤ É r T (ξ, η) × exp[ik
z2z1+z21z2
(ξ
2+ η
2)] _ É Òo \ ¨ 8 e ` ¦ · ú Ã º e Ü ¼ 9, :
£
¤ y " é ¶+ þ A { ½ ¨ ¸\ ¦ ° ú H á ÔY U3 A q ½ ¨% i ó ø Í_ F g» ¡ ¤ @ /g A$ í
`
¦ ¦ 9 ' a ¹ 1 Ï÷ & H \ [ t s Á º] (_ [ jl H Z ! s q < Êà º
\
¦ l $ Ð H É Òo \ -Z ! s q ¨ 8 Ü ¼ Ð Ð ç ß é ß y è
q à º e
I(r) = I
0| Z
10