Abstract
A terahertz (THz) pulse laser with a wavelength of 385 μm is optically pumped by a transverse excited atmospheric CO2 laser based on molecular gas. The used CO2 laser wavelength is 9.26 μm with an output peak power density of 3.0 MW/cm2. The 385 μm THz pulse signal was observed at different D2O vapor pressures. The energy of the THz pulse is performed as a function of the D2O vapor pressure, and a maximum THz pulse signal energy was obtained. And this can be used for researching for biological effects comfortably.
This is a preview of subscription content, log in via an institution.
Buying options
Tax calculation will be finalised at checkout
Purchases are for personal use only
Learn about institutional subscriptionsPreview
Unable to display preview. Download preview PDF.
References
Sirtori, C.: Applied Physics: Bridge for the Terahertz Gap. Nature 417, 132–133 (2002)
Köhler, R., Tredicucci, A., Beltram, F., Beere, H.E., Linfield, E.H., Davies, A.G., Ritchie, D.A., Iotti, R.C., Rossi, F.: Terahertz Semiconductor-Heterostructure Laser. Nature 417, 156–157 (2002)
Carr, G.L., Martin, M.C., McKinney, W.R., Jordan, K., Neil, G.R., Williams, G.P.: High-Power Terahertz Radiation from Relativistic Electrons. Nature 420, 153–156 (2002)
Borak, A.: Toward Bridging the Terahertz Gap with Silicon-Based Lasers. Science 308, 638–639 (2005)
Watanabe, S.: Infrared Investigation of Deuterated Si(111) Surface Formed in Hot Heaby Water. Appl. Phys. Lett. 67, 3620–3622 (1995)
Siegel, P.H.: Terahertz Technology. IEEE Trans. Microwave Theory Tech. 50, 910–928 (2002)
Lee, Y., Hurlbut, W.C., Vodopyanov, K.L., Fejer, M.M., Kozlov, V.G.: Generation of Multicycle Terahertz Pulses via Optical Rectification in Periodically Inverted GaAs Structures. Appl. Phys. Lett. 89, 181104–181106 (2006)
Rønne, C., Thrane, L., Åstrand, P., Wallqvist, A., Mikkelsen, K.V., Keiding, S.R.: Investigation of The Temperature Dependence of dielectric Relaxation in Liquid Water by THz Reflection Spectroscopy and Molecular Dynamics Simulation. J. Chem. Phys. 107, 5319–5331 (1997)
Yuan, D.C., Siegrist, M.R.: Single-mode Operation of a Hybrid Optically pumped D2O Pulsed Far-infrared Laser. J. Appl. Phys. 68, 1445–1449 (1990)
Ferguson, B., Zhang, X.C.: Materials for Terahertz Science and Technology. Nature Materials 1, 26–33 (2002)
Yu, B.L., Yang, Y., Zeng, F., Xin, X., Alfano, R.R.: Terahertz Absorption Spectrum of D2O Vapor. Opt. Commun. 258, 256–263 (2006)
Rønne, C., Åstrand, P., Kerding, S.R.: THz Spectroscopy of Liquid H2O and D2O. Phys. Rev. Lett. 82, 2888–2891 (1999)
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2014 Springer International Publishing Switzerland
About this paper
Cite this paper
Shi, H., Yang, B., Yu, W., Jin, L. (2014). A Comfortable THz Source for Biological Effect. In: Zhang, Y., Yao, G., He, J., Wang, L., Smalheiser, N.R., Yin, X. (eds) Health Information Science. HIS 2014. Lecture Notes in Computer Science, vol 8423. Springer, Cham. https://doi.org/10.1007/978-3-319-06269-3_29
Download citation
DOI: https://doi.org/10.1007/978-3-319-06269-3_29
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-06268-6
Online ISBN: 978-3-319-06269-3
eBook Packages: Computer ScienceComputer Science (R0)