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Title: Absolute energy reference calorimeter with bismuth telluride thermocouples for laser energy standard

Abstract

A highly sensitive calorimeter has been developed for measuring the absolute energy of single laser pulses. The calorimeter, which consists of a solid volume absorber, a copper absorption cavity, and bismuth telluride thermocouples, is operated at room temperature with no vacuum window. The absorption of the laser energy in the calorimeter leads to a temperature increase of the cavity. The time-dependent temporal temperature change was measured as voltage signals with highly sensitive bismuth telluride semiconductor thermocouples. The calorimeter was calibrated by injecting a known Joule heat with a heater on the cavity. The experimental results showed a linear relationship in an energy range from 5 to 100 mJ. The standard deviation of the calibrated sensitivity was less than 0.1%. The systematic errors of the laser energy measurement are estimated to be as small as 0.32%.

Authors:
; ;  [1]
  1. National Institute of Advanced Industrial Science and Technology, Umezono 1-1-1, Tsukuba, Ibaraki 305-8563 (Japan)
Publication Date:
OSTI Identifier:
20723236
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 76; Journal Issue: 11; Other Information: DOI: 10.1063/1.2135286; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; ABSORPTION; BISMUTH; BISMUTH COMPOUNDS; CALIBRATION; CALORIMETERS; CAVITIES; COPPER; ERRORS; LASER CAVITIES; LASERS; PULSES; SEMICONDUCTOR MATERIALS; TELLURIDES; TEMPERATURE RANGE 0273-0400 K; THERMOCOUPLES

Citation Formats

Fukuda, Daiji, Kimura, Shinji, and Endo, Mitiyuki. Absolute energy reference calorimeter with bismuth telluride thermocouples for laser energy standard. United States: N. p., 2005. Web. doi:10.1063/1.2135286.
Fukuda, Daiji, Kimura, Shinji, & Endo, Mitiyuki. Absolute energy reference calorimeter with bismuth telluride thermocouples for laser energy standard. United States. doi:10.1063/1.2135286.
Fukuda, Daiji, Kimura, Shinji, and Endo, Mitiyuki. Tue . "Absolute energy reference calorimeter with bismuth telluride thermocouples for laser energy standard". United States. doi:10.1063/1.2135286.
@article{osti_20723236,
title = {Absolute energy reference calorimeter with bismuth telluride thermocouples for laser energy standard},
author = {Fukuda, Daiji and Kimura, Shinji and Endo, Mitiyuki},
abstractNote = {A highly sensitive calorimeter has been developed for measuring the absolute energy of single laser pulses. The calorimeter, which consists of a solid volume absorber, a copper absorption cavity, and bismuth telluride thermocouples, is operated at room temperature with no vacuum window. The absorption of the laser energy in the calorimeter leads to a temperature increase of the cavity. The time-dependent temporal temperature change was measured as voltage signals with highly sensitive bismuth telluride semiconductor thermocouples. The calorimeter was calibrated by injecting a known Joule heat with a heater on the cavity. The experimental results showed a linear relationship in an energy range from 5 to 100 mJ. The standard deviation of the calibrated sensitivity was less than 0.1%. The systematic errors of the laser energy measurement are estimated to be as small as 0.32%.},
doi = {10.1063/1.2135286},
journal = {Review of Scientific Instruments},
number = 11,
volume = 76,
place = {United States},
year = {Tue Nov 15 00:00:00 EST 2005},
month = {Tue Nov 15 00:00:00 EST 2005}
}