Abstract

We developed a calorimeter for determining absolute terahertz (THz) power. The calorimeter is based on a DC substitution method using an isothermal temperature-control technique. A neutral-density optical filter glass was used as a volume absorber, and its THz absorption was evaluated by a time-domain spectrometer. Highly sensitive measurement of the absolute THz power was experimentally achieved in the range from the submicrowatt to microwatt level at room temperature. Power measurement of a continuous-wave THz source using a photomixer was demonstrated. This calorimeter is expected to demonstrate the traceability of THz power at a submicrowatt level.

© 2014 Optical Society of America

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References

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  1. L. Werner, H.-W. Hübers, P. Meindl, R. Müller, H. Richter, and A. Steiger, Metrologia 46, S160 (2009).
    [CrossRef]
  2. B. Gutschwager, C. Monte, J. Hollandt, H. Delsim-Hashemi, and O. Grimm, Metrologia 46, S165 (2009).
    [CrossRef]
  3. A. Steiger, B. Gutschwager, M. Kehrt, C. Monte, R. Müller, and J. Hollandt, Opt. Express 18, 21804 (2010).
    [CrossRef]
  4. A. Steiger, M. Kehrt, C. Monte, and R. Müller, Opt. Express 21, 14466 (2013).
    [CrossRef]
  5. J. H. Lehman, B. Lee, and E. N. Grossman, Appl. Opt. 50, 4099 (2011).
    [CrossRef]
  6. K. Sakurai, Y. Mitsuhashi, and T. Honda, IEEE Trans. Instrum. Meas. 16, 212 (1967).
    [CrossRef]
  7. T. Inoue, K. Yamamura, and M. Endo, IEEE Trans. Instrum. Meas. 34, 431 (1985).
    [CrossRef]
  8. T. Inoue, I. Yokoshima, and A. Hiraide, IEEE Trans. Instrum. Meas. IM-36, 623 (1987).
    [CrossRef]
  9. Y. Suzuki, A. Murata, M. Araragi, and T. Inoue, IEEE Trans. Instrum. Meas. 40, 219 (1991).
    [CrossRef]
  10. K. Amemiya, T. Inoue, D. Fukuda, S. Mukai, and T. Numata, Proceedings of the 10th International Conference on New Developments and Applications in Optical Radiometry (NEWRAD, 2008), p. 71.
  11. NTT Electronics Corporation, Antenna Integrated Photomixer User’s Manual (NTT Electronics, 2012).
  12. NTT Electronics Corporation, Photomixer Test Report, (NTT Electronics, 2012).

2013 (1)

2011 (1)

2010 (1)

2009 (2)

L. Werner, H.-W. Hübers, P. Meindl, R. Müller, H. Richter, and A. Steiger, Metrologia 46, S160 (2009).
[CrossRef]

B. Gutschwager, C. Monte, J. Hollandt, H. Delsim-Hashemi, and O. Grimm, Metrologia 46, S165 (2009).
[CrossRef]

1991 (1)

Y. Suzuki, A. Murata, M. Araragi, and T. Inoue, IEEE Trans. Instrum. Meas. 40, 219 (1991).
[CrossRef]

1987 (1)

T. Inoue, I. Yokoshima, and A. Hiraide, IEEE Trans. Instrum. Meas. IM-36, 623 (1987).
[CrossRef]

1985 (1)

T. Inoue, K. Yamamura, and M. Endo, IEEE Trans. Instrum. Meas. 34, 431 (1985).
[CrossRef]

1967 (1)

K. Sakurai, Y. Mitsuhashi, and T. Honda, IEEE Trans. Instrum. Meas. 16, 212 (1967).
[CrossRef]

Amemiya, K.

K. Amemiya, T. Inoue, D. Fukuda, S. Mukai, and T. Numata, Proceedings of the 10th International Conference on New Developments and Applications in Optical Radiometry (NEWRAD, 2008), p. 71.

Araragi, M.

Y. Suzuki, A. Murata, M. Araragi, and T. Inoue, IEEE Trans. Instrum. Meas. 40, 219 (1991).
[CrossRef]

Delsim-Hashemi, H.

B. Gutschwager, C. Monte, J. Hollandt, H. Delsim-Hashemi, and O. Grimm, Metrologia 46, S165 (2009).
[CrossRef]

Endo, M.

T. Inoue, K. Yamamura, and M. Endo, IEEE Trans. Instrum. Meas. 34, 431 (1985).
[CrossRef]

Fukuda, D.

K. Amemiya, T. Inoue, D. Fukuda, S. Mukai, and T. Numata, Proceedings of the 10th International Conference on New Developments and Applications in Optical Radiometry (NEWRAD, 2008), p. 71.

Grimm, O.

B. Gutschwager, C. Monte, J. Hollandt, H. Delsim-Hashemi, and O. Grimm, Metrologia 46, S165 (2009).
[CrossRef]

Grossman, E. N.

Gutschwager, B.

A. Steiger, B. Gutschwager, M. Kehrt, C. Monte, R. Müller, and J. Hollandt, Opt. Express 18, 21804 (2010).
[CrossRef]

B. Gutschwager, C. Monte, J. Hollandt, H. Delsim-Hashemi, and O. Grimm, Metrologia 46, S165 (2009).
[CrossRef]

Hiraide, A.

T. Inoue, I. Yokoshima, and A. Hiraide, IEEE Trans. Instrum. Meas. IM-36, 623 (1987).
[CrossRef]

Hollandt, J.

A. Steiger, B. Gutschwager, M. Kehrt, C. Monte, R. Müller, and J. Hollandt, Opt. Express 18, 21804 (2010).
[CrossRef]

B. Gutschwager, C. Monte, J. Hollandt, H. Delsim-Hashemi, and O. Grimm, Metrologia 46, S165 (2009).
[CrossRef]

Honda, T.

K. Sakurai, Y. Mitsuhashi, and T. Honda, IEEE Trans. Instrum. Meas. 16, 212 (1967).
[CrossRef]

Hübers, H.-W.

L. Werner, H.-W. Hübers, P. Meindl, R. Müller, H. Richter, and A. Steiger, Metrologia 46, S160 (2009).
[CrossRef]

Inoue, T.

Y. Suzuki, A. Murata, M. Araragi, and T. Inoue, IEEE Trans. Instrum. Meas. 40, 219 (1991).
[CrossRef]

T. Inoue, I. Yokoshima, and A. Hiraide, IEEE Trans. Instrum. Meas. IM-36, 623 (1987).
[CrossRef]

T. Inoue, K. Yamamura, and M. Endo, IEEE Trans. Instrum. Meas. 34, 431 (1985).
[CrossRef]

K. Amemiya, T. Inoue, D. Fukuda, S. Mukai, and T. Numata, Proceedings of the 10th International Conference on New Developments and Applications in Optical Radiometry (NEWRAD, 2008), p. 71.

Kehrt, M.

Lee, B.

Lehman, J. H.

Meindl, P.

L. Werner, H.-W. Hübers, P. Meindl, R. Müller, H. Richter, and A. Steiger, Metrologia 46, S160 (2009).
[CrossRef]

Mitsuhashi, Y.

K. Sakurai, Y. Mitsuhashi, and T. Honda, IEEE Trans. Instrum. Meas. 16, 212 (1967).
[CrossRef]

Monte, C.

Mukai, S.

K. Amemiya, T. Inoue, D. Fukuda, S. Mukai, and T. Numata, Proceedings of the 10th International Conference on New Developments and Applications in Optical Radiometry (NEWRAD, 2008), p. 71.

Müller, R.

Murata, A.

Y. Suzuki, A. Murata, M. Araragi, and T. Inoue, IEEE Trans. Instrum. Meas. 40, 219 (1991).
[CrossRef]

Numata, T.

K. Amemiya, T. Inoue, D. Fukuda, S. Mukai, and T. Numata, Proceedings of the 10th International Conference on New Developments and Applications in Optical Radiometry (NEWRAD, 2008), p. 71.

Richter, H.

L. Werner, H.-W. Hübers, P. Meindl, R. Müller, H. Richter, and A. Steiger, Metrologia 46, S160 (2009).
[CrossRef]

Sakurai, K.

K. Sakurai, Y. Mitsuhashi, and T. Honda, IEEE Trans. Instrum. Meas. 16, 212 (1967).
[CrossRef]

Steiger, A.

Suzuki, Y.

Y. Suzuki, A. Murata, M. Araragi, and T. Inoue, IEEE Trans. Instrum. Meas. 40, 219 (1991).
[CrossRef]

Werner, L.

L. Werner, H.-W. Hübers, P. Meindl, R. Müller, H. Richter, and A. Steiger, Metrologia 46, S160 (2009).
[CrossRef]

Yamamura, K.

T. Inoue, K. Yamamura, and M. Endo, IEEE Trans. Instrum. Meas. 34, 431 (1985).
[CrossRef]

Yokoshima, I.

T. Inoue, I. Yokoshima, and A. Hiraide, IEEE Trans. Instrum. Meas. IM-36, 623 (1987).
[CrossRef]

Appl. Opt. (1)

IEEE Trans. Instrum. Meas. (4)

K. Sakurai, Y. Mitsuhashi, and T. Honda, IEEE Trans. Instrum. Meas. 16, 212 (1967).
[CrossRef]

T. Inoue, K. Yamamura, and M. Endo, IEEE Trans. Instrum. Meas. 34, 431 (1985).
[CrossRef]

T. Inoue, I. Yokoshima, and A. Hiraide, IEEE Trans. Instrum. Meas. IM-36, 623 (1987).
[CrossRef]

Y. Suzuki, A. Murata, M. Araragi, and T. Inoue, IEEE Trans. Instrum. Meas. 40, 219 (1991).
[CrossRef]

Metrologia (2)

L. Werner, H.-W. Hübers, P. Meindl, R. Müller, H. Richter, and A. Steiger, Metrologia 46, S160 (2009).
[CrossRef]

B. Gutschwager, C. Monte, J. Hollandt, H. Delsim-Hashemi, and O. Grimm, Metrologia 46, S165 (2009).
[CrossRef]

Opt. Express (2)

Other (3)

K. Amemiya, T. Inoue, D. Fukuda, S. Mukai, and T. Numata, Proceedings of the 10th International Conference on New Developments and Applications in Optical Radiometry (NEWRAD, 2008), p. 71.

NTT Electronics Corporation, Antenna Integrated Photomixer User’s Manual (NTT Electronics, 2012).

NTT Electronics Corporation, Photomixer Test Report, (NTT Electronics, 2012).

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Figures (5)

Fig. 1.
Fig. 1.

Block diagram of the THz calorimeter using the isothermal temperature control technique.

Fig. 2.
Fig. 2.

Photo of the calorimeter head. The temperature reference block is made of copper (Cu) with dimensions of H50mm×W70mm×L40mm.

Fig. 3.
Fig. 3.

Measured optical properties of the 0.5 mm thick NG1 disk from the TDS. (a) Reflectance and (b) external transmittance.

Fig. 4.
Fig. 4.

Experimental setup for the absolute THz power measurement with the photomixer.

Fig. 5.
Fig. 5.

Time response of the DC heater power to the switching of the THz beam.

Equations (4)

Equations on this page are rendered with MathJax. Learn more.

Pi=Pa+Pr.
Pi=K(Ph1Ph2)+Pr,
Pr=RPi.
Pi=K(Ph1Ph2)1R.

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