H. Heffner

TWO‐PHOTON PHOTOELECTRIC EFFECT IN Cs3Sb1

W. Spicer, H. Sonnenberg, H. Heffner, 1964 .

Experimental Study of Optical Second-Harmonic Generation in Silver*

H. Sonnenberg, H. Heffner, 1968 .

Crossed-Field Microwave Devices

E. Okress, E. Okress, Herbert Heffner, 1962 .

Simultaneous Measurement of Noncommuting Observables

C. Y. She, C. She, H. Heffner, 1966 .

Transformation Having Applications in Quantum Mechanics

W. Louisell, H. Heffner, 1965 .

Analysis of Spherical Sector Resonators for the Production of a Focused Laser Beam

C. She, H. Heffner, 1964 .