  We have used laser guide star adaptive optics and a near-infrared
dual-channel imaging polarimeter to observe light scattered in the
circumstellar environment of Herbig Ae/Be stars on scales of 100-300 AU. We
discover a strongly polarized, biconical nebula 10 arcseconds in diameter (6000
AU) around the star LkHa 198, and also observe a polarized jet-like feature
associated with the deeply embedded source LkHa 198-IR. The star LkHa 233
presents a narrow, unpolarized dark lane consistent with an optically thick
circumstellar disk blocking our direct view of the star. These data show that
the lower-mass T Tauri and intermediate mass Herbig Ae/Be stars share a common
evolutionary sequence.
