What do you exactly need ? The picture is showing a glass handrail in a wooden stringer but to my opinion this glass is to thin to be self supported. What is the situation you ave to work on ? Do you have pictures of that too and some more information like sizes ?
The stringer needs to have enough thickness to secure the glass.
i have a stairway that i am quoting on that involves self supporting glass , looking for some ways to secure the glass at the bottom like the picture attached !