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1.1.8 Other Ions and Crystals Exhibiting Gain

Table 1.1.13
Other Ions Exhibiting Gain
Host Wavelength Temp.
Ion crystal Transition ( m) (K) Ref.
1
Ag + KI, RbBr 1 T ﬁ A 1g ~0.337 5 1101–2
1u
4
Cr 3+ LiNbO 3 4 T ﬁ A 2 0.910 300 1103
2
4
Cr 3+ LiNbO 3 4 T ﬁ A 2 0.927 300 1104
2
Cr 4+ CaGd (SiO ) O 3 T ﬁ 3 A 2 1.15–1.5 300 1105
4
4 3
2
Cu + Ag–b"–alumina 4s ﬁ 3d 0.6328 300 1106
Cu + Na-b"-alumina (a) 4s ﬁ 3d 0.5145 300 1106
Dy 3+ LaCl 3 6 H 9/2 ﬁ 6 H 15/2 1.319, 1.338 300 1107
In + KCl 6p ﬁ 6s 0.442 — 1108
3
Mn 5+ Ca PO Cl 1 E ﬁ A 2 1.15 300 1109
4
2
3
Mn 5+ Sr (PO ) Cl 1 E ﬁ A 2 ~1.2 300 1109
4 3
5
4
Nd 3+ Gd (Sc,Ga) O :Cr 4 F 3/2 ﬁ I 11/2 1.061 (b) 300 1110
3
5
12
4
Nd 3+ LiYF 4 5d ﬁ I 11/2 0.186 (c) 300 1111
4
Nd 3+ ZnS film 4 F 3/2 ﬁ I 11/2 ~1.080 (d) 77 1112
Rh 2+ RbCaF 3 2 T ﬁ 2 E 0.700–0.720 300 1113
1
Ti 4+ Li GeO 3 charge transfer 0.388–0.524 300 1114
2
Tl + CsI 6p ﬁ 6s 0.407 — 1115
Tl + KI 6p ﬁ 6s 0.420 — 1116
UO 2 2+ Ca(UO )(PO )•H O charge transfer 0.500–0.550 — 1117
4
2
2
4
V 2+ KMgF 3 4 T ﬁ A 2 1.064 — 1118
2
(a) Typical composition: Na 1.67 Mg 0.67 Al 10.33 O 19 .
(b) X-ray induced optical gain.
(c) Because of the presence of excited state absorption, a negative net-induced gain coefficient
was measured.
(d) Direct current electroluminescence (DCEL) and cathodoluminescence.
1.1.9 Self-Frequency-Doubled Lasers
Table 1.1.14
Self-Frequency-Doubled Transition Metal Ion Lasers
Host Lasing Primary Frequency-doubled Temp.
(a)
crystal ion transition wavelength ( m) (K) Ref.
4
Ca Ga SiO 7 Cr 3+ 4 T ﬁ A 2 0.5 300 1017
2
2
2
4
La Ga 5.5 Nb 0.5 O 14 Cr 3+ 4 T ﬁ A 2 0.53 300 1017
3
2
4
La Ga 5.5 Ta 0.5 O 14 Cr 3+ 4 T ﬁ A 2 0.54 300 1017
2
3
4
La Ga GeO 14 Cr 3+ 4 T ﬁ A 2 0.52 300 1017
5
3
2
4
La Ga SiO 14 Cr 3+ 4 T ﬁ A 2 0.48 300 1017
3
5
2
4
Sr Ga GeO 14 Cr 3+ 4 T ﬁ A 2 0.5 300 1017
2
2
3
(a) Center wavelength of tuning range.
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