Abstract

We correct several errors in a recently published paper [J. Opt. Soc. Am. B 31, 1712 (2014) [CrossRef]  ].

© 2015 Optical Society of America

We have found several errors in our recently published paper [1]. The appearance of Pv in Eq. (15) is redundant, as the corresponding heat loads have been included in Pabs. Equation (15) in paper [1] should be replaced by

Pcool=PfPabs.

There is a clerical error in Eq. (18): a minus sign should be added at the right-hand side of the equation.

The simulation results alter with the change of Eq. (15). Figures 4 and 5 in paper [1] should be replaced by the following Figs. 1 and 2, respectively. Figure 1 shows that the copumping scheme for cooling enhancement only works when sample temperature is above 210 K. Figure 2 shows that a maximum cooling power density (MCPD) of 7.5×107W·m3 could be achieved in the 1.2% Ho3+:YLiF4 crystal. The corresponding cooling efficiency is about 4.2%.

 

Fig. 1. Temperature-dependent critical background absorption coefficient of the 1% Ho3+:YLiF4 crystal (I1=106W·m2). The dashed line indicates the background absorption αb=4.0×104cm1. The solid point indicates the critical condition of whether cooling enhancement occurs.

Download Full Size | PPT Slide | PDF

 

Fig. 2. At temperature of 300 K. (a) The MCPD as a function of dopant concentration. (b) The corresponding optimum pumping intensities (OPI). The solid curve is for ground state absorption, and the dashed curve is for excited state absorption. (c) The corresponding cooling efficiency.

Download Full Size | PPT Slide | PDF

These changes do not affect the qualitative conclusions of paper [1].

REFERENCE

1. G. Z. Dong and X. L. Zhang, “Efficient and enhanced optical refrigeration beyond 2 μm in Ho3+-doped solids via copumping scheme,” J. Opt. Soc. Am. B 31, 1712–1718 (2014). [CrossRef]  

References

  • View by:
  • |
  • |
  • |

  1. G. Z. Dong and X. L. Zhang, “Efficient and enhanced optical refrigeration beyond 2  μm in Ho3+-doped solids via copumping scheme,” J. Opt. Soc. Am. B 31, 1712–1718 (2014).
    [Crossref]

2014 (1)

Cited By

OSA participates in Crossref's Cited-By Linking service. Citing articles from OSA journals and other participating publishers are listed here.

Alert me when this article is cited.


Figures (2)

Fig. 1.
Fig. 1. Temperature-dependent critical background absorption coefficient of the 1% Ho 3 + : YLiF 4 crystal ( I 1 = 10 6 W · m 2 ). The dashed line indicates the background absorption α b = 4.0 × 10 4 cm 1 . The solid point indicates the critical condition of whether cooling enhancement occurs.
Fig. 2.
Fig. 2. At temperature of 300 K. (a) The MCPD as a function of dopant concentration. (b) The corresponding optimum pumping intensities (OPI). The solid curve is for ground state absorption, and the dashed curve is for excited state absorption. (c) The corresponding cooling efficiency.

Equations (1)

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

P cool = P f P abs .

Metrics