Which geo-processing tool you are using for DTM creation from LAS? The snap you attached is showing a no data raster, means the raster created with no value.
Following are the steps that I follow:
- Verify the LAS dataset has the ground class with proper classification.
- Make a LAS dataset layer to only select the ground points.
- Run the LAS Dataset to raster tool and specify a 'value field' as 'Elevation'. Also use the 'Sampling Type' as 'Cell size' and specify the 'Sampling value' as the DTM resolution need to be used.
This should make you DTM. Please let me know the outcome.
Thanks & Regards
Trina