I+ JK2LM NOP-QRS IT UV-WR/X4 Y(-WR/

ZD!"D2R.R. Lucchese(1-3[) T. Mazza(2-3[/ E. Gryzlova(2-3[)

\]^+K2 Chuncheng Wang (4-12 [/

E!"),_`abcd()(efghijklm'()(nopqegrstjuvm!"#$

wxyz{m|

!"#"

}~!"#$w€z‚ƒj„…vm|

1 !"#$%&'(ICD)*

d(j† X ‡wˆ‰zTŠ‹oŒŽ:mrŒi‘’“”•;a 2 –~oŒ”K—:˜m|

™~ 2 –oŒ”a'(š›jœmž•”Ÿ ¡¢i£j¤¥¦§ž•¨©jª«a¬­®¯j°

~d(”±²vm³´a µ¶d(¬·'(”š›:˜z'(’“vm ICD - Interatomic Coulombic decay /

”•;m™r”ªm|¸¹`ºj»¼R½¾ NeAr jklm Ne 1s Œi‘’“¿j•;m ICD ÀÁw

!"Â [1.1] |E!"_` Ar2p Œi‘’“¿~ ICD ÀÁjÃÄwÅz [1.2] |

EÆÇ` SPring-8 ~ȇɋ† X ‡ BL27SU _xʘÂ|Ë{‹(Ÿ ¡¢i` 268 eV _ª«a Ar 2p ÌÍ~oŒŽÎύÐÑ¡œ«Ò 19 eV Ó{| Ne-Ar Ô´Õg~Ö×ØefghiÙiÚ`† X ‡ rÛÈj\Ê«aÜ~\ÄwÝÞ_߬{´yzoŒr'(~àáâã›ä”åæ:˜z{m|ã

›äjçèÂ'(roŒ~éærêëwìívm™rjœ«a'(roŒ~îáâï$½wð êìíÂ|ðêìíÂoŒñr'(~ï$Ÿ ¡¢iòuœ«aTŠ‹oŒŽ:˜Â NeAr ” '(’“_óyÂôõö÷wøùÂ|

ú 1.1 j Ne

⁺

-Ar

²⁺

oŒñK—jñvmûï$½Ÿ

 ¡¢i

(KER; Kinetic Energy Release)

)üwý v|uþÂrÿí:˜m Ar 2p Œi‘ ¨©~!

"#$%r

Ne

⁺

-Ar

²⁺

~ÎύÐÑ¡&‡¬·a‚ƒj ýv 4 ­~ ICD ÀÁ~'э ¡w()vm™r”_

;Â|

(a) NeAr

²⁺

(3p

^-3

(

²

P)3d

¹

P)

*

Ne

⁺

(2p

^-1

)-Ar

²⁺

(3p

^-23

P) (b) NeAr

²⁺

(3s

^-2

)

*

Ne

⁺

(2p

^-1

)-Ar

²⁺

(3p

^-23

P)

(c) NeAr

²⁺

(3p

^-3

(

²

P)4p

¹

S)

*

Ne+(2p

^-1

)-Ar

²⁺

(3p

^-23

P) (d) NeAr

²⁺

(3p

^-3

(

²

D)4d

³

D,

¹

P,

³

P)

*

Ne

⁺

(2p

^-1

)-Ar

²⁺

(3p

^-2

3

P)

'э ¡

(b) ` 3 ­~'(”uþzk«a™~

œ+§ 3 '( ICD ÀÁ`E!"jœ«,-z.í:˜

Â/~_ªm|™~ÀÁ`0‹123'45$r{y °~6´ÀÁœ«/7898•™mž•ÀÁ_ªm|

E!"`a+:¬·~;6w<za=>I+a@?@Aû´!"BaÓC$‹D+!"Ehia

FGI+-HI/

aJoK¡L¡MI+-NoO/Pr~Qð!"rzRxÂ|

[1.1] T. Ouchi et al. Phys. Rev. A (in press).

[1.2] T. Ouchi et al. Submitted to Phys. Rev. Lett..

Fig. 1.1. Kinetic energy distribution for

Ne

⁺

-Ar

^2+.

!"#$% &'()*+,%-.(ICD/01ETMD/0

'()*+,-./)*0123'(456789 :+;<=>?@1A/BC)*4D*EFGHIJ K13'(HIJK4LIMJ2NO>PQKR.

ICD (Interatomic Coulombic Decay)

P Q K

ETMD (Electron-transfer-mediated decay)

PQ4STU.-IM

ICD

PQV'()*WTBC)*+567894X$

R/X$Y2)*WTD*4FGZUIM[\/

ETMD

PQV'()*]D*4X^/X$_2)*WTAO [`2D*4FGZUIM

ICD

PQ+`-.V/

Mauburger

T4

Ne

abcd9Ee-.fg:+hiR

.jk/lm2fg4noU.pq4/

ETMD

PQ+

`-.V/rXst4uZv/

ICD

PQKwxHIJ KWT/fg:+!"ZUqyV>WzqM{!"1 VD*

-

|}~€_$‚ƒ„…†‡Ee-./

Ar

ˆ|‰92Š|}~‹Œ+,I

ICD

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ETMD

PQ2Ž†Enzq

[2.1]

M

{fgV

SPring-8

2‘’“

X



BL27SU

1no UqMe-q’*56789V

345 eV

1L^/

Ar 2p

”•2|}~‹–—~˜™7N^š

95 eV

›-M

Ar

œžabcd9Ÿ9 V“

X

K¡+¢o^/£

2¢¤E¥¦1§W-@z.|}~KD*2¨€_©

Gª4«¬ZU.-IM©Gª+­®RqD*K|}

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}~2€_$‚Eƒ„…†RqMƒ„…†Rq|

}~±KD*2$56789²³N^/

ICD

PQ, N´

ETMD

PQEĵHIJK41pIM

ƒ„…†Rq|}~±2¶n„°²³WT

Ar

Š

|}~‹Œ

ICD

PQ·

ETMD

PQE¸¹R.º»R qK¼½TUI|}~±

Ar

³⁺

-Ar

⁺

Ar

²⁺

-Ar

²⁺ Es¾R qM¿

2.1

,N´¿

2.2

+JUT2|}~±2À$

56789

(KER; Kinetic Energy Release)

KFGZU qD*2567892²³¿EÁHMJUT2²°¿

WT/

Ar

ˆ|‰92Š|}~‹Œ2

ICD

PQK

ETMD

PQ+NIÂ56789D*FGEs¾HI JK41pqM

ETMD

PQV{!"+N^ÃÄ.Ž†

ZUqA21LIM

{!"V/ÅÆWT2ÇÈEÉ./ÊËÌÅ/ÍÎ ÏÐÀ@!"Ñ/›ÒӒÔÅ!"Õ~d9/Ö|×

7Ø7ÙÌÅÚÛ|ÜÝÞK2߃!"KR.ànR qM

[2.1] K. Sakai et al. Phys. Rev. Lett. 106, 033401 (2011).

Fig. 2.2. Relationship between the ETMD electron energy and the total KER for the Ar

²⁺

-Ar

²⁺

fragmentation of the argon dimer.

See the caption of Fig. 2.1 for the details.

Fig. 2.1. (a) Relationship between the ICD electron energy and the total KER for the Ar

³⁺

-Ar

⁺

fragmentation of the argon dimer.

(b) Kinetic energy distribution of the ICD electrons detected in coincidence with Ar

³⁺

-Ar

⁺

pairs and in coincidence with Ar

⁺

-Ar

⁺

ion pairs are given by the solid line and the dashed line, respectively. The latter is scaled to match the former at high energy.

The latter gives the background coming

from the false co incidences because the

true electron signals in coincidence with

Ar

⁺

-Ar

⁺

ion pairs are expected to be zero

in this energy region. The result of the

background subtrac-tion is given by the

dots. (c) KER distribution between Ar

³⁺

-Ar

⁺

.

! !"#$%&'()(*+,-./"0!1234/"50"6789:;<-.=>?&@A BCDEFGHIE&JKL

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=

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M ÊË sj4no=pqrq3I0]6)ª«£QÏÐ)›–•–ž­)ÊËÌ,DEg4ÇLÑL)]

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ã!"jx æçaè:éêRëìí„

A&M

aè:)î;!"sZ0M

[3.1] M. Okunishi et al. Phys. Rev. Lett. 106, 063001 (2011).

Fig. 3.1. Comparison of experimentally extracted

electron-ion elastic scatting differential cross sectelectron-ions for O

2

and

CO

2

molecules with theoretical differential cross sections.

4. !"#$%&'()(*EUVFEL+,-./0123&456789&:;<=2>

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_`abIcd;< EUVFEL 5efg>

hijP'(Ak7(lMNOPQ5/

(m7)nopq8r [3.1,3.2]V

s4.1)Ar'()7(tuiv124.5 eV AFEL59:8rwA/(xyz{i5|

;V/(Apq}~KFEL7A€7‚

=ƒ„…}~3†‡4=ˆˆ‡A}~X‰

<VFEL7A67Š)‹Œ<Ž1K

‘2 × 10¹²

Wcm

²X‰<V19.4 eV=21.2 eV )pqRJr’1zKAr⁺

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⁵²

P

_1/2,3/2

)

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Ar

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D)=Ar

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P)“Al7(NOP

QA7/(X‰<V

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)

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⁺

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)NOPAAr

⁺

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? 7 ( § ¤ E ¤ S o >   k x ¡ ¢ £ X

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P)l¨NOP“A?7(NOP

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Ar'(Ak7(l

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Nåçh>èéhêAëì!"íî=Aï w©ð!"X‰<V

[4.1] H. Fukuzawa et al. J. Phys. B

43,

111001 (2010).

[4.2] R. Ma et al. to be submitted.

Fig. 4.1:

Photoelectron spectra around 20 eV: (a) experiment;

(b) theory. The theoretical spectra were convoluted by a Gaussian function with the FWHM of 0.4 eV. Experimental and theoretical results are normalized to unity in the maximum.

0.2 0.4

0.6 0.8

1

30

210

60

240

90

270 120

300 150

330

180 0

Fig. 4.2: Angular distribution of the second photoelectron

e

₂^-

emitted via resonant three photon double ionization at

hv=21.45 eV. 1

^st

step, Ar + hv -> Ar

⁺

(3p

⁵

)+e

₁^-

; 2

^nd

step,

Ar

⁺

(3p

⁵

) + hv -> Ar

⁺

(3p

⁴

3d),; 3

^rd

step, Ar

⁺

(3p

⁴

3d) + hv

-> Ar

⁺

(3p

^{4 1}

S)+e

₂^-

.

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FEL

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6T:96UVW-236T:96EFXYZ [\];^_Q`?O@Pabcd?SO-E ef23B6:6T:96PghiWjk;f

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ab initio

pq;E?9:GH BIJKL-!"4rs8h?

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S t

5.1

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Ncd?SBIJ-„…[†‡;EFBIJK L-ˆ‰/Šv;‹ŒPd?ŽAVW-2 36T:96QU@‘’‹ŒPdf“sŽ

”QX•–Pjk;f?O@Pabcd?St

5.1

;{7ŽBIJKL“—‚O?€v)T:

96X˜ŽYZ™N;š>?›œf%4žŸS noUA ;A

LiF, BeO, BF, CO, N

²

, C

²

H

²

, C

²

H

⁴

, C

²

H

⁶

, CO

²

, N

²

O

@hsŽ¡¢f9:-£B

¤a¥¦-GHBIJKL;§~7823B6 :6T:96;Es8¨©[;ª«>?O@-QR?¬­®@YZ[\]-š¯4°—“;7

Ž

[5.1]

S±h8A

O

2

, NO, CN, NO

2-Eef²H 9:

[5.2]

A£³¤a¥¦4žŸ9:

SiX4 (X=H, F, Cl, CH

3

) [5.3]

At

5.2

;{>Eef´µ

[5.4]

¶@·¸-¹ºY4ts8h?S˜ŽA»=6 4¼hŽT:½›¾¿p­¨©@-ÀÁ;EFA

·¸-ÂÃÄ-ÅÆXrs8h?

[5.5,5.6]

S Ç!"UA9:ÈZ!"ÉAÊËÌZAÍÎ Ï/Ð/ÑÌZÒÓÎÔÕAÖ×ØÙÌZÒ0 Ö)vÏÚÕÛ@-ÜÝÞ¾!"@78ßr7

ŽS

[5.1] M. Tashiro et al. J. Chem. Phys.

132,

184302 (2010).

[5.2] M. Tashiro et al. Chem. Phys. Lett. 496, 217 (2010).

[5.3] O. Takahashi et al. Chem. Phys. (in press).

[5.4] O. Takahashi et al. (in preparation).

[5.5] J.H.D. Eland et al. Phys. Rev. Lett.

105, 2

13005 (2010).

[5.6] P. Linusson et al. Phys. Rev. A

83,

022506 (2011).

Fig. 5.1. Schematic picture of X-ray two-photon pho-toelectron spectroscopy and X-ray two-photon Auger electron spectroscopy. In this picture, it is assumed that the second photon is absorbed before Auger decay takes place.

Fig. 5.2. Nucleobases to be studied.

!EUVFEL "#$$%&'()*+,-./01.2&

'()*+,-.-/0123/

EUVFEL

4 56789'()*+,-.-/:;<=>?

42@ABCDEFGHI9'()*+/=>

6JK/LBMMN-OPQ4PRCDEF S<TDUVWXYZ[/

FEL

PQ\]

FLASH

F^_/

FEL

PQ\]

SCSS

`QabcF<9E /HdeLBMMN-OPQGHD'()*

fg2*h-4ij8klD

[6.1-6.5]

U m

6.1

G

D

26n4olpqrstPQ/u4 vC

[6.2]

Uwx/012GHI

D

26n4Z, By8kz${|4}~CDUw5/012G HI

D

2+Z,B4€GZ,ByCDF

D

22+5

Z,BS‚-NBJƒCDUE/FT„~C D5…/

D

⁺Z,B4†=‡ˆ8k‰$Š‹1

Œ-/

(KER)

4ŽDFw5012/=G

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DEFGH˜kz${|/‰$4™šDEF S<TDU

m

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GE/›œ4olk™šp

C

2

H

26n/

žy/ˆŸu

[6.4]

4vCUwx/012GH I

HCCH

6n4Z,ByCDF

H

qnS$T 

9

CCH

2¡/žyS ¢DUw£/012

<€GZ,By4¤T¥E89

2

¦Z,B

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H

⁺F

CH

2

+

F4†=‡ˆCDF9„

~§S¨©=>FFªG«a89žyG¬8 p=>X

50 fs

­;<®DEFS6•DU m

6.3

GE/›œ4

He

qn/5¯nZ,By

°±s²Golk

SCSS

abc/

EUVFEL

01 2/³´µ>4ˆŸ8pu4vC

[6.5]

UE/

Hde³´µ>ˆŸ•€X

EUVFEL

012/¶

·-¸B*¹º01234ŽDEFS<T DU

_!"X9»¼‚2M½B‚!"¾¿YZ[À ÁF/ÂÃĆ!"F8kÅÆ8pU

[6.1] Y. H. Jiang et al. Phys. Rev. A

81,

021401(R) (2010).

[6.2] Y. H. Jiang et al. Phys. Rev. A

81,

051402(R) (2010).

[6.3] Y. H. Jiang et al. Phys. Rev. A

82,

041403 (2010).

[6.4] Y. H. Jiang et al. Phys. Rev. Lett.

105,

263002 (2010).

[6.5] R. Moshammer et al. (in preparation).

Fig. 6.1. a) Pump-probe scheme, b) experiment and c) theory.

Fig. 6.2. Isomerization from HCCH to CCH

2

..

Fig. 6.3. Autocorrelation measurement with He at

SCSS test accelerator.

!"#$%&'( ! '()(*+ ",- ^{! .} 2010 / 1 0 2010 / 12 1!

2 3! : ! 45 67

8 2! : ! 9: ;<=> ?@

ドキュメント内 研究業績・活動報告2010 (ページ 54-60)