Apparatus and method for inverse photoemission

Details Apparatus and method for inverse photoemission Apparatus and method for inverse photoemission

1991-09-09

1992-06-09

Fields, Carolyn E.

Radiant energy

Invisible radiant energy responsive electric signalling

Ultraviolet light responsive means

2504581, 2504591, G01N 2322, G01N 2162

Patent

active

051209659

ABSTRACT:
Disclosed is an apparatus for inverse photoemission spectroscopy in which optical filters having at least two different cutoff energies are selectively provided in the optical path of a vacuum ultraviolet-ray detector. The bandpass characteristic of emitted light obtained by causing monochromatic energy to impinge upon a sample is obtained by different high cutoff energies of the two filters. The different high cutoff energies are set by selection of different types of ionic crystals and the temperature characteristic of the same or different types of ionic crystals.

REFERENCES:
patent: 4472634 (1984-09-01), Baptist et al.
patent: 4871915 (1989-10-01), Prince
Schafer et al., "Bandpass Photon Detector with High Efficiency for Inverse Photoemission", Rev. Sci. Instrum. 58 (4), Apr. 1987-American Institute of Physics, pp. 710-711.
Suga et al., "Inverse Photoemission Spectroscopy", Journal of the Specroscopical Society of Japan (Bunkyo Kenkyu), vol. 39, No. 1 (1990), pp. 2-18.

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