Abstract

Recently lead salts quantum well lasers which exhibit strong quantum optical effects, have been used to fabricate infrared diode lasers with wide single-mode tunability, low waste heat generation and large spectral coverage up to about 10 μm. Based on the energy dependent effective mass method, a theoretical model was developed to study the effects of band non parabolicty and temperature on the tunability of IV-VI PbSe/Pb0.934 Sr0.066 Se laser system. This study will show the effects of temperature as a function of well width on the emitted wavelength. Moreover, it will be shown that the effects of non parabolicity on the energy levels can't be ignored in the nano range well width.

Keywords:

Breath analysis , infrared , lead salts , non-parabolicity, quantum well lasers,

References

1. Buszewski, B., M. Kesy, T. Ligor and A. Amann, 2007. Human exhaled air analytics: Biomarkers of diseases. Biomed. Chromatogr., 21: 553-566.
   CrossRef    PMid:17431933    
2. Butler, J.F., A.R. Calawa, R.J. Phelan Jr., T.C. Harman, A.J. Strauss and R.H. Rediker, 1964. PbTe diode laser. Appl. Phys. Lett., 5: 75-77.
   CrossRef    
3. Hiroshima, T. and R. Lang, 1986. Effects of conduction-band non-parabolicity onquantized energy levels of a quantum well. Appl. Phys. Lett., 49: 456-457.
   CrossRef    
4. Kim, C.S., C.L. Canedy, E.H. Aifer, M. Kim, W.W. Bewley et al., 2007. Molecular beam epitaxy growth of antimonide type-II “W” high-power interband cascade lasers and long-wavelength infrared photodiodes. J. Vac. Sci. Technol. B, 25: 991-994.
   CrossRef    
5. Lehtinen, J. and T. Kuusela, 2014. Broadly tunable quantum cascade laser in cantilever-enhanced photoacoustic infrared spectroscopy of solids. Appl. Phys. B, 115(3): 413-418.
   CrossRef    
6. Owen, E., V.E. Trapp, C.L. Skutches, M.A. Mozzoli, R.D. Hoeldtke, G. Boden and G.A. Reichard, 1982. Actetone metabolism during diabetic ketoacidosis. Diabetes, 31: 242-248.
   CrossRef    PMid:6818074    
7. Partin, L., 1988. Lead salt quantum effect structures. IEEE J. Quantum Elect., 24: 1716-1726.
   CrossRef    
8. Razeghi, M., N. Bandyopadhyay, Y. Bai, Q. Lu and S. Slivken, 2013. Recent advances in mid infrared (3-5µm) quantum cascade lasers. Opt. Mater. Express, 3: 1872-1884.
   CrossRef    
9. Roller, C.B., K. Namjou, J. Jeffers, M. Camp, P.J. McCann and J. Grego, 2002. Nitric oxide breath testing using tunable diode laser absorption spectroscopy: Application in respiratory inflammation monitoring. Appl. Optics, 41: 6018-6029.
   CrossRef    PMid:12371564    
10. Shen, W., H.F. Jiang, K. Wang, G. Yu, H.Z. Wu and P.J. McCann, 2002. Band gaps, effective masses and refractive indices of PbSrSe thin films: Key properties for mid-infrared optoelectronic devices applications. J. Appl. Phys., 91: 192-198.
    CrossRef    
11. Smith, D., T. Wang, J. Sule-Suso, P. Spanel and A.E. Haj, 2003. Quantification of acetaldehyde releases by lung cancer cells in vitro using selected ion flow tube mass spectrometry. Rapid Commun. Mass Sp., 17: 845-850.
    CrossRef    
12. Yang, R., C. Hill and B. Yang, 2005. High-temperature and low-threshold mid-infrared interband casade lasers. Appl. Phys. Lett., 87: 151109.
    CrossRef    
13. Yates, D.H., 2001. Role of nitric oxide in asthma. Immunol. Cell Biol., 79: 178-190.
    CrossRef    PMid:11264714    
14. Zolotov, Y.A., 2005. Breath analysis. J. Anal. Chem., 60: 497-497.
    CrossRef    

Competing interests

The authors have no competing interests.

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