Abstract

Ultrabroadband radiation from Yb2O3 at ambient and low air pressures was investigated under the excitation of a 980nm diode laser. The radiation was confirmed to be blackbody radiation, and it is sensitive to environmental air pressure in the way that the integrated radiation intensity decreases linearly with increasing air pressure. An ideal gas model may be employed to interpret the linear dependence. The pressure-sensitive radiation characteristic provides a potential method for noncontact measurement of air pressure with high accuracy.

© 2011 Optical Society of America

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References

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2010 (1)

J. W. Wang and P. A. Tanner, J. Am. Chem. Soc. 132, 947 (2010).
[CrossRef]

2007 (1)

A. Bhattacharya, R. S. Rao, and M. G. Krishna, Sens. Actuators A. Phys. 134, 348 (2007).
[CrossRef]

2005 (1)

2004 (1)

S. M. Redmond, S. C. Rand, and S. L. Oliveira, Appl. Phys. Lett. 85, 5517 (2004).
[CrossRef]

2000 (1)

1999 (1)

M.-F. Joubert, Opt. Mater. 11, 181 (1999).
[CrossRef]

1998 (1)

Bhattacharya, A.

A. Bhattacharya, R. S. Rao, and M. G. Krishna, Sens. Actuators A. Phys. 134, 348 (2007).
[CrossRef]

Bischel, W. K.

Biswas, A.

Friend, C. S.

Joo, T.

Joubert, M.-F.

M.-F. Joubert, Opt. Mater. 11, 181 (1999).
[CrossRef]

Kapoor, R.

Krishna, M. G.

A. Bhattacharya, R. S. Rao, and M. G. Krishna, Sens. Actuators A. Phys. 134, 348 (2007).
[CrossRef]

Krupke, W. F.

Oliveira, S. L.

S. M. Redmond, S. C. Rand, and S. L. Oliveira, Appl. Phys. Lett. 85, 5517 (2004).
[CrossRef]

Page, R. H.

Payne, S. A.

Prasad, P. N.

Rand, S. C.

S. M. Redmond, S. C. Rand, and S. L. Oliveira, Appl. Phys. Lett. 85, 5517 (2004).
[CrossRef]

Rao, R. S.

A. Bhattacharya, R. S. Rao, and M. G. Krishna, Sens. Actuators A. Phys. 134, 348 (2007).
[CrossRef]

Redmond, S. M.

S. M. Redmond, S. C. Rand, and S. L. Oliveira, Appl. Phys. Lett. 85, 5517 (2004).
[CrossRef]

Rhee, H.

Schaffers, K. I.

Tanner, P. A.

J. W. Wang and P. A. Tanner, J. Am. Chem. Soc. 132, 947 (2010).
[CrossRef]

Tassano, J. B.

Waide, P. A.

Wang, J. W.

J. W. Wang and P. A. Tanner, J. Am. Chem. Soc. 132, 947 (2010).
[CrossRef]

Appl. Phys. Lett. (1)

S. M. Redmond, S. C. Rand, and S. L. Oliveira, Appl. Phys. Lett. 85, 5517 (2004).
[CrossRef]

J. Am. Chem. Soc. (1)

J. W. Wang and P. A. Tanner, J. Am. Chem. Soc. 132, 947 (2010).
[CrossRef]

J. Opt. Soc. Am. B (1)

Opt. Lett. (2)

Opt. Mater. (1)

M.-F. Joubert, Opt. Mater. 11, 181 (1999).
[CrossRef]

Sens. Actuators A. Phys. (1)

A. Bhattacharya, R. S. Rao, and M. G. Krishna, Sens. Actuators A. Phys. 134, 348 (2007).
[CrossRef]

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Figures (4)

Fig. 1
Fig. 1

Measured radiation spectra of the Yb 2 O 3 radiator (red curve) and the tungsten filament lamp (black curve). The left scale is for the original measured spectra and the right scale is for corresponding calibrated spectra.

Fig. 2
Fig. 2

The discrete black circles are the calibrated emission spectrum of the Yb 2 O 3 radiator under atmospheric pressure. The red solid curve is a Planck distribution fit ( T = 1778 ± 10 K ).

Fig. 3
Fig. 3

Comparison of radiation under 200 Pa pressure (black curve) with that under atmospheric pressure (red curve). The left scale is for the original measured spectra and the right scale is for corresponding calibrated spectra.

Fig. 4
Fig. 4

The blackbody emission integrated intensity ratio versus gas pressure.

Tables (1)

Tables Icon

Table 1 Corresponding Color Temperatures Fitted by the Planck’s Law under Different Pressures

Equations (6)

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

ν ¯ = 8 k T π m ,
ν ¯ 2 = 3 k T m .
n 0 = 1 4 n ν ¯ .
Δ E = n 0 A ( 1 2 m ν ¯ 2 1 2 m ν ¯ 0 2 ) = 3 4 2 k m T 0 A ( T T 0 ) P ,
( 1 R ) I ex = κ ( T T 0 ) χ + σ A ( T 4 T 0 4 ) + 3 4 2 k m T 0 A ( T T 0 ) P .
I em σ A T 4 = ( 1 R ) I ex + σ A T 0 4 κ ( Δ T ) χ 3 4 2 k m T 0 A ( Δ T ) P .

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