R. A. Hoffman

Moisture resistant optical films: their production and characterization.

R. Hopkins, R. A. Hoffman, W. Kramer, 1975, Applied optics.

Fabrication and evaluation of erosion‐resistant multispectral optical windows

Gerald B. Brandt, Richard H. Hopkins, T. Peterson, 1978 .

Apparatus for the measurement of optical absorptivity in laser mirrors.

R. A. Hoffman, 1974, Applied optics.

Development of Multispectral Sandwich-Type IR Windows.

R. Hopkins, G. Brandt, R. A. Hoffman, 1977 .