Structural and photoluminescence studies on europium-doped lithium tetraborate (Eu:Li
2
B
4
O
7
) single crystal grown by microtube Czochralski (μT-Cz) technique
Kumaresh A
1, 2
, Arun Kumar R
1, 2, †,
, Ravikumar N
1, 2
, Madhusoodanan U
3
, Panigrahi B S
3
, Marimuthu K
4
, Anuradha M
5
Photograph of as-grown crystal of Eu-doped LTB.