I've looked around on http://resources.arcgis.com/en/help/arcobjects-net/ but have not found anything other than the brief descriptions of individual class names and parameters they take in. However, nothing in respect to working examples and how to tie everything together.
You might find useful those exercises that resulted from ArcGIS 10.1 Lidar Workshop.
The table of contents is the following:
Exercise 1: Create a LAS dataset and explore the lidar data using ArcGIS;