| A total (s-1) | t cal (ms) | t exp (ms) | e (%) | l em (nm) | Dl eff (nm) | s em (l e) (10-20 cm2) |
| 53.56         | 18.67      | 13.39      | 72    | 1537      | 37.8        | 0.44                   |

Caption: Some spectroscopic parameters of Er3+ 4I13/2 - 4I15/2 transition in the glass ceramic

You are provided with a table from a material science paper. Here are JSON templates for two types of numeric cells: "Other" and "Glass_Compound_Amount":
{"value": "xx", "type": "Other"}
{"value": "xx", "type": "Glass_Compound_Amount", "constituent": "xx", "unit": "xx", "material": "xx"}

Please describe all numeric cells in the above table following the JSON templates (proceeding by row in a left-right, top-down direction). For each cell, output one JSON description per line. For any unanswerable attributes in the templates, set their value to the placeholder "xx".

Cell Description:
{"value": "53.56", "type": "Other"}
{"value": "18.67", "type": "Other"}
{"value": "13.39", "type": "Other"}
{"value": "72", "type": "Other"}
{"value": "1537", "type": "Other"}
{"value": "37.8", "type": "Other"}
{"value": "0.44", "type": "Other"}