U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Publications by: Zachary H. Levine (Fed)

Search Title, Abstract, Conference, Citation, Keyword or Author
Displaying 101 - 125 of 155

The Trouble with Calcium Floride

March 1, 2002
Author(s)
John H. Burnett, Zachary H. Levine, Eric L. Shirley
We discuss the intrinsic birefringence of calcium fluoride and othercrystalline materials that may be used in the optics for 193nm and 157nmlithography, including the characterization of the effect and itsimplications for performance of lens systems at

Mass Absorption Coefficient of Tungsten for 1600-2100 eV

February 1, 2002
Author(s)
Zachary H. Levine, S Grantham, I McNulty
The transmission of soft x-rays with photon energies from 1606 eV to 2106 eV was measured for tungsten using thin film samples and a synchrotron source. This region includes the M IV and M V edges. The two tungsten films had thicknesses of 107.7 10 nm and

Mass Absorption Coefficient of Tungsten, 1600 eV to 2100 eV

January 24, 2002
Author(s)
Zachary H. Levine, S Grantham, I McNulty
The transmission of soft x-rays with photon energies from 1606 eV to 2106 eV was measured for tungsten using thin film samples and a synchrotron source. This region includes the M IV and M V edges. The two tungsten films had thicknesses of 107.7 10 nm and

Excitonic Effects on Optical Second-Harmonic Polarizabilities of Semiconductors

January 1, 2002
Author(s)
E K. Chang, Zachary H. Levine, Eric L. Shirley
We present an ab initio many-body formalism for computing the frequency-dependent second-harmonic polarizability of semiconductor materials that includes both local-field and excitonic effects. We calculate the second-harmonic polarizability for AIP, AIAs

Mass Absorption Coefficient of Tungsten, 1606-2100 eV

January 1, 2002
Author(s)
Zachary H. Levine, S Grantham, I McNulty
The transmission of soft x-rays with photon energies from 1606 eV to 2106 eV was measured for tungsten using thin film samples and a synchrotron source. This region includes the M IV and M V edges. The two tungsten films had thicknesses of 107.7 10 nm and

Hidden in Plain Sight: Calcium Fluoride's Intrinsic Birefringence

December 1, 2001
Author(s)
John H. Burnett, Zachary H. Levine, Eric L. Shirley
We discuss the phenomena of intrinsic birefringence in cubic crystals that we first characterized experimentally and theoretically in ultraviolet optical materials. We analyze the wavelength dependence, the angular dependence, and symmetry of the effect

Intrinsic Birefringence in Calcium Fluoride and Barium Floride

December 1, 2001
Author(s)
John H. Burnett, Zachary H. Levine, Eric L. Shirley
We have measured an intrinsic birefringence in calcium fluoride in the ultraviolet for wavelengths from 365 nm down to 156 nm, and compared these results with theory and calculations. The measured effect is largest for propagation in the [110] direction
Was this page helpful?