TY - JOUR AU - Simon Kaplan AU - Leonard Hanssen AU - Alan Migdall AU - G Lefever-Button C2 - Proc SPIE DA - 1998-01-01 LA - en M1 - 3425 PB - Proc SPIE PY - 1998 TI - Characterization of high-OD ultrathin infrared neutral density filters UR - https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=103916 ER -