Plan for HBr VMI experiments in FORTH, autumn 2014 & progress
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Transcript of Plan for HBr VMI experiments in FORTH, autumn 2014 & progress
Plan for HBr VMI experiments in FORTH, autumn 2014& progress
-one and two-color experiments
States to study……………………………………………….2-3Rotational lines……………………………………………….4-5Spectra …………………………………………………………..6-7State interactions……………………………………………8-9
- lineshifts……………………………………….10- line intensity alterations………………11-12- linewidth alterations……………………13
One color scheme………………………………………….14Two color scheme………………………………………….15Atom(H,H*,Br,Br*) detection by 2nd color……..16 – 18
Progress: exp. vs. Dates …………………………………19-21„Centers“ used……………………………………………….19-21Bx..,xb,,xx.. Files (definitions)…………………………22
Updated 13.10.2014
I. Weak „near resonance“ interactions of the Rydberg states with ion-pair(V) states:a) F1D2(v´=1) with V(m + 7) ANDb) k3P1(v´=0) with V(m + 9)
See:https://notendur.hi.is/agust/rannsoknir/papers/HBr/jcp136-214315-12.pdfhttps://notendur.hi.is/~agust/rannsoknir/papers/HBr/jms282-20-12.pdf
II. Medium to strong „off-resonance“ interactions of the Rydberg states :a) H1S+(v´=0)b) E1S+(v´=1)-with V(m+7), V(m+8), V(m+9)
See:https://notendur.hi.is/agust/rannsoknir/papers/HBr/jcp136-214315-12.pdfhttps://notendur.hi.is/~agust/rannsoknir/papers/HBr/jms282-20-12.pdf
Rotational lines.https://notendur.hi.is/agust/rannsoknir/papers/HBr/jcp136-214315-12.pdf:
Rotational lines.
https://notendur.hi.is/~agust/rannsoknir/papers/HBr/jms282-20-12.pdf
Spectra: https://notendur.hi.is/agust/rannsoknir/papers/HBr/jcp136-214315-12.pdf:
Spectra: https://notendur.hi.is/~agust/rannsoknir/papers/HBr/jms282-20-12.pdf
State interactions: https://notendur.hi.is/agust/rannsoknir/papers/HBr/jcp136-214315-12.pdf:
State interactions show as i) Line-shifts, ii)Line-intensity alterationsiii)line-width alterations:
i) Line-shifts:
https://notendur.hi.is/agust/rannsoknir/papers/HBr/jcp136-214315-12.pdf:
ii) Line-intensity alterations:
https://notendur.hi.is/agust/rannsoknir/papers/HBr/jcp136-214315-12.pdf:
ii) Line-intensity alterations:
https://notendur.hi.is/~agust/rannsoknir/papers/HBr/jms282-20-12.pdf
iii) Line-width alterations:
https://notendur.hi.is/agust/rannsoknir/papers/HBr/jcp136-214315-12.pdf:
One color experiments: Main emphasize on H+ VMI (KER´s and angular distributionsvs. Rydberg and ion-pairstates and J´s)
2
E
HBr
(HBr+)
HBr*Ry
H+Br -*Ion-pair
2xhn1
hn1
2xhn1
H+ & (Br)+
H* & (Br*)
Two color experiments: H+ and Br+ VMI (KER´s and angular distributions vs. Rydberg and ion-pair states and J´s)
2
E
HBr
(HBr+)
HBr*Ry
H+Br -*Ion-pair
2xhn1
2xhn1
2xhn2
hn2
H+ (Br)+
H + Br
H + Br*
H* + Br
NB: Br = Br(3/2) & (1/2)
H*+Br or H+Br*
H + Br**
H** + Br
H+ and Br +
1st color 2nd color
For example
ERGO: Detect H, Br, H* and Br* by 2nd color, i.e.
H(n=1) + 2hn -> H*(n=2) …..+hn -> H+ + e: 2hn = 82 258.95 cm-1 / hn= 41129.48 cm-1 / l =243.1346 nmH*(n=2) + hn -> H*(n=3) …….+hn -> H+ + e: hn = 15233.15 cm-1 / l = 656.463 nm
Br = Br(3/2) & (1/2); Br* = Bromine Rydberg states, for example https://notendur.hi.is/agust/rannsoknir/rempi/cf3br/Thesis-Kari-jan11.pdf , page 12 :
continue: Br* by 2nd color, e.g. http://www.nist.gov/pml/data/asd.cfm
4s24p4(3P1)5s 4P 1/2 66883,87 4s24p4(3P2)6p 4D° 3/2 85943,86
4s24p4(3P2)6p 4P° 3/2 85586,34s24p4(3P1)5s 4P 1/2 66883,87
524,6592469
534,6898772
Derived from energy levels
539,0411321 4s24p4(3P1)6s 2P 3/2 85435,334s24p4(3P1)5s 4P 1/2 66883,87
4s24p4(3P0)4d 2D 3/2 85191,594s24p4(3P1)5s 4P 1/2 66883,87546,2176612
Transitions involved:
continue: Br* by 2nd color, e.g. http://www.nist.gov/pml/data/asd.cfm
date Exp. work Center used
Comments/ref.
8.9 Mo Prepartion work
9.9 Tue Prepartion work
10.9 We Prepartion work
11.9 Thu Prepartion work
12.9 Fri Prepartion work
13.9 Sa
14.9 Su
15.9 Mo H(0), 1 color, VMI 675.5 535
16.9 Tue H(0), 1 color, Slice images
675.5 535
17.9 We E(1),1 color, VMI 675.5 535
18.9 Thu V(m+7), 1 color, VMI 675.5 535
19.9 Fri V(m+8), 1 color, VMI 675.5 535
20.9 Sa
21.9 su
date Exp. work Center used
Comments/ref:
22.9 Mo Preparation work
23.9 Tue Preparation work
24.9 We Preparation work
25.9 Thu V(m+8), 2 color, Br detection 675.5 535
26.9 Fri V(m+7), 2 color, Br detection 675.5 535
27.9 Sa
28.9 Su
29.9 Mo E(1)(J´=0,1,2..4) & H(0)(J´=0-2), 2 color, Br detection 675.5 535
30.9 Tue H(0), 2 color, Br* detection (J´=0-5)“1st exp.“ 675 537(?)
1.10 We H(0), 2 color, Br* detection (J´=0-9)“2nd exp.“ 675 537
2.10 Thu E(1), J´= 0, 2 color, H detection
3.10 Fri V(m+8), J´= 3, 2 color, H detection & off-res. exp. (set 4)V(m+7), J´= 1, 2 color, H detection
675 535(?)675 535(?)
4.10 Sa
5.10 Su
date Exp. work Center used Comments/Refs:
6.10 Mo H(0), 2 color, H detection, J´= 3E(1), 2 color, Br* det., J´= 1,2,3
677,535
7.10 Tue V(m+8), 2 color, Br* det., J´=0-3,4,5V(m+7), 2 color, Br* det., J´=0,1
677,535 „2hv rings“ seen for J´= 2,3 V(m+8)„2hv rings“ seen for J´= 0,1 V(m+7)
8.10 We V(m+7), 2 color, Br* det., J´=2,3,4,5 677,535 2hv ring seen in all J´s
9.10 Thu V(m+7), 2 color, Br* det., J´=6,7,8 677,535 2hv ring seen for J´=6; not for J´=7,8
10.10 Fri Searched for Br** without results.One- and two-color tests for 6pp3S-J´=8
677(?),535 Plan to detect Br**(5s)One-color spectrum (H+) (50%HBr:50%He mixture)differs from the autumn 2013 spectrum (100% HBr) probably due to cluster formation.
11.10 Sa
12.10 Su
13.10 Mo
14.10 Tue
15.10 We
16.10 Thu
17.10 Fri
18.10 Sa
19.10 su
Infos:
In 2 color experiments:bx…img files: MOBO blocked, Dye laser onxb..img files: MOBO on, Dye laser off resonancexx..img files: MOBO on, Dye laser on