Research and development for optically pumped far-infrared gas laser

Qu Yanchen; Chen Huiying; Geng Lijie; Zhao Weijiang

Volume 43 Issue 4

May 2014

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Article Navigation > Infrared and Laser Engineering > 2014 > 43(4): 1099-1105

Qu Yanchen, Chen Huiying, Geng Lijie, Zhao Weijiang. Research and development for optically pumped far-infrared gas laser[J]. Infrared and Laser Engineering, 2014, 43(4): 1099-1105.

Citation:

Qu Yanchen, Chen Huiying, Geng Lijie, Zhao Weijiang. Research and development for optically pumped far-infrared gas laser[J]. Infrared and Laser Engineering, 2014, 43(4): 1099-1105.

Research and development for optically pumped far-infrared gas laser

1.
National Key Laboratory of Tunable Laser Technology,Harbin Institute of Technology,Harbin 150080,China

Received Date: 2013-08-14
Rev Recd Date: 2013-09-15
Publish Date: 2014-04-25

Abstract

Far infrared laser sources have many properties of strong penetration, low photon energy, wide bandwidth, large transmission capacity of communication, have been widely applications in public security, environmental monitoring, biomedical diagnostics, astronomical observation, military and communicational application, etc. The technological advantages of the optically pumped far infrared gas laser were gave by comparing a variety of ways to produce far infrared laser based on introducing their development. Summarized far-infrared laser mediums and their new lines of the recent years. At last, the research trends of optically pumped far infrared which were summarized by reviewing the continuous and pulsed optically pumped far-infrared gas laser development, combining with some of the key research directions in this field were indicated.
- far infrared gas laser,
- optically pumped,
- efficiency,
- development

References

[1]
[2]	Fan W H, Burnett A, Upadhya P C, et al. Far-infrared spectroscopic characterization of explosives for security applications using broadband terahertz time-domain spectroscopy[J]. Appl Spectrosc, 2007, 61(6): 638-643.
[3]
[4]	Radoslaw Ryniec, Przemyslaw Zagrajek, Tomasz Trzcinski, et al. Explosives identification model in reflection mode for THz security system [C]//SPIE, 2011, 8119 (4): 811904-1-819904-6.
[5]
[6]	Endres C P, Muller H S P, Brunken S, et al. High resolution rotation-inversion spectroscopy on doubly deuterated ammonia, ND2H, up to 2.6 THz [J]. Journal of Molecular Structure, 2006, 795(1-3): 242-255.
[7]	Peter H, Siegel, Pikov V. THz in biology and medicine: towards quantifying and understanding the interaction of millimeter and submillimeter-waves with cells and cell processes [C]//SPIE, 2010, 7562: 75620H-1-75620H-13.
[8]
[9]
[10]	Pikov V, Siegel P H. Remote temperature monitoring of cells exposed to millimeter wave radiation using microscopic Raman spectroscopy [J]. Engineering in Medicine and Biology Magazine, 2010: 1-28.
[11]
[12]	Francisco S. Determination of death thresholds and identification of terahertz (THz)-specific gene expression signatures [C]//SPIE, 2010, 7562: 75620K.
[13]
[14]	Watanabe K, Murakami H. GaAs extrinsic photoconductors for the terahertz astronomy[C]//SPIE, 2007, 6840: 68401F.
[15]	Liang Y Q, Fan W H. Image enhancement techniques used for THz imaging [C]//SPIE, 2011, 8195: 819515-1-819515-6.
[16]
[17]	Rieh J S, Jeon S, Kim M. An overview of integrated THz electronicsfor communication applications [C]//MWSCAS, 2011 IEEE 54th International Midwest Symposium, 2011: 1-4.
[18]
[19]	Chang T Y, Brdge T J. Laser action at 452, 496 and 541m in optically pumped CH3F [J]. Opt Commun, 1970, 9: 423-426.
[20]
[21]	Yamanaka M, Homma Y, Tanaka A, et al. On the transverse mode in an optically pumped far-infrared NH3 laser[J]. Appl Phys, 1974, 13: 843-850.
[22]
[23]	Tucker J R. Theory of an FIR gas laser [C]//International Conference on Submillimeter Waves and their Applications, 1974: 17-18.
[24]
[25]	Henningsen J O, Jensen H G. The optically pumped far-infrared laser: rate equations and diagnostic experiments [J]. Quantum Electron, 1975, 11(6): 248-252.
[26]
[27]
[28]	DeTemple T A, Danielewicz E J. Continuous-wave CH3F waveguide laser at 496 m: theory andexperiment [J]. Quantum Electron, 1976, 12(1): 40-47.
[29]	Temkin R J, Cohn D R. Rate equations for an optically pumped far infrared laser [J]. Opt Commun, 1976, 16 (2): 213-217.
[30]
[31]	Tucker J R. Absorption saturation and gain in pulsed CH3F lasers[J]. Opt Commun, 1976, 16(2): 209-212.
[32]
[33]	Koepf G A, Smith K. The CW 496 m methylfluoride laser: review and theoretical predictions [J]. Quantum Electron, 1978, 14(5): 333-338.
[34]
[35]
[36]	Evans D E, Sharp L E, Peebles W A, et al. Far-infrared super-radiant laser action in heavy water [J]. Opt Commun, 1976, 18(4): 479-484.
[37]
[38]	Evans D E, Guinne R A, Huckridge D A, et al. Time-resolved pulses and wavelength measurements for the 114m and 66m emissions in the fir superradiant D2O laser [J]. Opt Commun, 1977, 22(2): 337-342.
[39]	Weber M J. Handbook of Laser Science and Technology, vol. II: Gas Lasers [M]. Boca Raton: CRC Press, 1982.
[40]
[41]	Tanaka A, Tanimoto A, Murata N, et al. CW efficient optically-pumped far-infrared waveguide NH3 lasers[J]. Opt Commun, 1977, 22: 17-21.
[42]
[43]	Schatz W. Generation of tunabie far-infrared radiation by opticai-pumping moiecuiar gas-iasers [J]. Infrared Physics Technology, 1995, 36(1): 387-393.
[44]
[45]
[46]	DeMichele A, Moretti A, Pereira D. Optically pumped 13CD3I: new Terahertz laser transitions [J]. Appl Phys B, 2011, 103: 659-662.
[47]	Vasconcellos E C C C, Jackson M, Hockel H, et al. Discovery and measurement of optically pumped far-infrared laser emissions in 13CD3OH[J]. Applied Physics B, 2003, 77 (6-7): 561-562.
[48]
[49]
[50]	Costa L F L, Moraes J C S, Cruz F C, et al. CH3OH optically pumped by a 13CO2 laser:new laser lines and assignments[J]. Applied Physics B, 2007, 86(4): 703-706.
[51]
[52]	Costa L F L, Moraes J C S, Cruz F C, et al. Infrared and far-infrared spectroscopy of 13CH3OH: TeraHertz laser lines and assignments [J]. Journal of Molecular Spectroscopy, 2007, 241(2): 151-154.
[53]
[54]	Jackson M, Petersen T, Zink L R. Frequencies and wavelengths from a new far-infrared lasing gas:13CHD2OH
[55]	Jackson M, Nichols A J, Artagnon D, et al. First laser action observed from optically pumped CH317OH[J].Quantum Electronics, 2012, 48(3): 303-306.
[J]. Quantum Electronics, 2009, 45(7): 830-832.
[57]
[58]	Keilmann F, Sheffield R L, Leite J R R, et al. Optical pumping and tunable laser spectroscopy of the v2 band of D2O[J]. Appl Phys Lett, 1975, 26: 19-22.
[59]
[60]	Evans D E, Sharp L E. Far-infrared super-radiant laser action in heavy water [J]. Optics Communications, 1976, 18 (4): 479-484.
[61]
[62]	De Michele A, Carelli G, Moretti A, et al. A new pulsed CO2 laser yielding new FIR laser lines from CH3OD pumped by the 10 P and 10 HP lines [J]. Phys B: At Mol Opt Phys, 2004, 37: 1979-1984.
[63]	Danielewicz E J, Plant T K, DeTemple T A. Hybrid output mirror for optically pumped far-infrared lasers [J]. Opt Commun, 1975, 13: 366-369.
[64]
[65]
[66]	Crenn J P, Veron D, Belland P. Theory of the transmission of metal strip gratings on a dielectric substrate: application to submillimeter laser coupling [J]. Infrared Milimeter Waves, 1986, 7: 1747-1767.
[67]
[68]	Veron D, Whitbourn L B. Strip gratings on dielectric substrates as output couplers for submillimeter lasers[J]. Appl Opt, 1986, 25: 619-628.
[69]	Bowden M D, James B W, Falconer I S, et al. Annular slot array output couplers for submillimetrelasers [J]. Opt Commun, 1992, 89: 419-422.
[70]
[71]	Densing R, Erstling A, Gogolewski M, et al. Effective far infrared laser operation with mesh couplers[J]. Infrared Phys, 1992, 33: 219-226.
[72]
[73]
[74]	Hodges D T, Foote F B, Reel R D. Effieient high-Power operation of the cw far-infrared waveguide laser [J]. Appl phys Lett, 1976, 29(10): 662-664.
[75]	Chang T Y, Lin C. Effects of buffer gases on an optically pumped CH3F FIR laser [J]. Opt Soc Am, 1976, 66: 362-369.
[76]
[77]
[78]	Hodges D T, Foote F B, Reel R D. High power operation and scaling behavior of CW optically pumped FIR waveguide lasers[J]. Quantum Electron, 1977, 13: 491-494.
[79]
[80]	Mansfield D K, Horlbeck E, Bennett C L, et al. High power operation of the 119m line of optically pumped CH3OH[J]. Infrared Millimeter Waves, 1985, 6: 867-876.
[81]	Plant T K, Newman L A, Danielewitz E J, et al. High power optically pumped far infrared lasers [J]. Microwave Theory Tech, 1974, 22: 988-990.
[82]
[83]
[84]	Evans D E, Sharp L E, James B W, et al. Far-in-frared superradiant laser action in methyl fluoride [J]. Appl Phys Lett, 1975, 26: 630-632.
[85]
[86]	Semet A, Johnson L C, Mansfield D K. A high energy D2O submillimeter laser for plasma diagnostics [J]. Infrared Millimeter Waves, 1983, 4: 231-316.
[87]	Nishi Y, Murai A. FIR laser emissions from population inversion transition by TEA-CO2 laser pumping [J]. Infrared Millimetre Waves, 1990, 11(2): 309-322.
[88]
[89]
[90]	Fetterman H R, Schlossberg H R, Waldman J. Submillimeter lasers optically pumped off resonance [J]. Opt Commun, 1972, 6: 156-159.
[91]	Panock R L, Temkin R J. Interaction of two laser fields with a three-level molecular system [J]. Quantum Electron, 1977, 13: 425-434.
[92]
[93]
[94]	Petuchowski S J, Rosenberger A T, DeTemple T A. Stimulated Raman emission in infrared excited gases [J]. Quantum Electron, 1977, 13: 476-481.
[95]
[96]	Biron D G, Temkin R J, Lax B, et al. High-intensity CO2 laser pumping of a CH3F Raman FIR laser [J]. Opt Lett, 1979, 4: 381-383.
[97]
[98]	Mathieu P, Izatt J R. Continuously tunable CH3F Raman farinfrared laser[J]. Opt Lett, 1981, 6: 369-371.
[99]
[100]	Danly B G, Evangelides S G, Temkin R J, et al. A tunable far infrared laser[J]. Quantum Electron, 1984, 20: 834-837.
[101]	DeTemple T. Pulsed optically pumped far infrared lasers [J]. Infrared and Millimeter Waves, 1979(1): 129-184.
[102]
[103]	Lee S H, Petuchowski S J, Rosenberger A T, et al. Synchronous, mode-locked pumping of gas lasers [J]. Opt Lett, 1979, 4: 6-8.
[104]
[105]
[106]	Lemley W, Nurmikko A V. High-intensity subnanosecond transients from synchronously pumped submillimeter-waves lasers[J]. Appl Phys Lett, 1979, 35: 33-35.
[107]
[108]	Lemley W, Nurmikko A V. Generation of ultrashort pulses in synchronous pumping of near-millimeter wave lasers [J]. International Journal of Infrared and Millimeter Waves, 1980, 1(1): 85-94.
[109]	Rosenberger, Chung H K, DE Temple. Sub-T2 optical pulse generation:application to optically pumped far-infrared lasers
[110]
[111]	Lang P T, Schatz W, Renk K F. Generation of subnanosecond far-infrared laser pulses in a large spectral range with a Raman D2O laser optically pumped by a continuously tunable CO2 laser [J]. Opt Commun, 1991, 84: 29-36.
[112]
[113]
[114]	Lang P T. Generation of tunable high power far-infrared radiation by stimulated Raman scattering in gaseous methyl-halides[J]. Infrared Phys, 1992, 33: 237-262.
[115]	Lang P T, Heusinger M A, Kass T, et al. Efficient generation of FIR radiation by optical pumping of D2 18O[J]. Appl Phys B, 1992, 55: 347-354.
[J].Quantum Electron, 1984, 20(5): 523-532.
[117]
[118]	Everitt H O, Skatrud D D, DeLucia F C. Dynamics and tunability of a small optically pumped CW far-infrared laser
[119]	Luo Xizhang, Zheng Xingshi. A unified miniature optically pumped NH3 FIR cavity laser [J]. J Infrared Millim Waves, 1998, 17(4): 299-302. (in Chinese) 罗锡璋, 郑兴世. 一体化的小型腔式光泵NH3 分子远红外激光器[J]. 红外与毫米波学报, 1998, 17(4): 299-302.
[120]
[121]
[122]	Behn R, Marc-Andge Dopertuis, Ivar Khelaerg, et al. Buffer gases to increase the efficiency of an optically pumped far infraed D2O laser[J]. IEEE Journal of Quantum Electronics, 1985, 21(8): 1278-1285.
[123]
[124]
[J]. Appl Phys Lett, 1986, 49: 995-997.
[126]
[127]

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

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Research and development for optically pumped far-infrared gas laser

1. National Key Laboratory of Tunable Laser Technology,Harbin Institute of Technology,Harbin 150080,China

Received Date: 2013-08-14

Rev Recd Date: 2013-09-15

Publish Date: 2014-04-25

Key words:

Abstract: Far infrared laser sources have many properties of strong penetration, low photon energy, wide bandwidth, large transmission capacity of communication, have been widely applications in public security, environmental monitoring, biomedical diagnostics, astronomical observation, military and communicational application, etc. The technological advantages of the optically pumped far infrared gas laser were gave by comparing a variety of ways to produce far infrared laser based on introducing their development. Summarized far-infrared laser mediums and their new lines of the recent years. At last, the research trends of optically pumped far infrared which were summarized by reviewing the continuous and pulsed optically pumped far-infrared gas laser development, combining with some of the key research directions in this field were indicated.

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Reference (127)

[1]
[2]	Fan W H, Burnett A, Upadhya P C, et al. Far-infrared spectroscopic characterization of explosives for security applications using broadband terahertz time-domain spectroscopy[J]. Appl Spectrosc, 2007, 61(6): 638-643.
[3]
[4]	Radoslaw Ryniec, Przemyslaw Zagrajek, Tomasz Trzcinski, et al. Explosives identification model in reflection mode for THz security system [C]//SPIE, 2011, 8119 (4): 811904-1-819904-6.
[5]
[6]	Endres C P, Muller H S P, Brunken S, et al. High resolution rotation-inversion spectroscopy on doubly deuterated ammonia, ND2H, up to 2.6 THz [J]. Journal of Molecular Structure, 2006, 795(1-3): 242-255.
[7]	Peter H, Siegel, Pikov V. THz in biology and medicine: towards quantifying and understanding the interaction of millimeter and submillimeter-waves with cells and cell processes [C]//SPIE, 2010, 7562: 75620H-1-75620H-13.
[8]
[9]
[10]	Pikov V, Siegel P H. Remote temperature monitoring of cells exposed to millimeter wave radiation using microscopic Raman spectroscopy [J]. Engineering in Medicine and Biology Magazine, 2010: 1-28.
[11]
[12]	Francisco S. Determination of death thresholds and identification of terahertz (THz)-specific gene expression signatures [C]//SPIE, 2010, 7562: 75620K.
[13]
[14]	Watanabe K, Murakami H. GaAs extrinsic photoconductors for the terahertz astronomy[C]//SPIE, 2007, 6840: 68401F.
[15]	Liang Y Q, Fan W H. Image enhancement techniques used for THz imaging [C]//SPIE, 2011, 8195: 819515-1-819515-6.
[16]
[17]	Rieh J S, Jeon S, Kim M. An overview of integrated THz electronicsfor communication applications [C]//MWSCAS, 2011 IEEE 54th International Midwest Symposium, 2011: 1-4.
[18]
[19]	Chang T Y, Brdge T J. Laser action at 452, 496 and 541m in optically pumped CH3F [J]. Opt Commun, 1970, 9: 423-426.
[20]
[21]	Yamanaka M, Homma Y, Tanaka A, et al. On the transverse mode in an optically pumped far-infrared NH3 laser[J]. Appl Phys, 1974, 13: 843-850.
[22]
[23]	Tucker J R. Theory of an FIR gas laser [C]//International Conference on Submillimeter Waves and their Applications, 1974: 17-18.
[24]
[25]	Henningsen J O, Jensen H G. The optically pumped far-infrared laser: rate equations and diagnostic experiments [J]. Quantum Electron, 1975, 11(6): 248-252.
[26]
[27]
[28]	DeTemple T A, Danielewicz E J. Continuous-wave CH3F waveguide laser at 496 m: theory andexperiment [J]. Quantum Electron, 1976, 12(1): 40-47.
[29]	Temkin R J, Cohn D R. Rate equations for an optically pumped far infrared laser [J]. Opt Commun, 1976, 16 (2): 213-217.
[30]
[31]	Tucker J R. Absorption saturation and gain in pulsed CH3F lasers[J]. Opt Commun, 1976, 16(2): 209-212.
[32]
[33]	Koepf G A, Smith K. The CW 496 m methylfluoride laser: review and theoretical predictions [J]. Quantum Electron, 1978, 14(5): 333-338.
[34]
[35]
[36]	Evans D E, Sharp L E, Peebles W A, et al. Far-infrared super-radiant laser action in heavy water [J]. Opt Commun, 1976, 18(4): 479-484.
[37]
[38]	Evans D E, Guinne R A, Huckridge D A, et al. Time-resolved pulses and wavelength measurements for the 114m and 66m emissions in the fir superradiant D2O laser [J]. Opt Commun, 1977, 22(2): 337-342.
[39]	Weber M J. Handbook of Laser Science and Technology, vol. II: Gas Lasers [M]. Boca Raton: CRC Press, 1982.
[40]
[41]	Tanaka A, Tanimoto A, Murata N, et al. CW efficient optically-pumped far-infrared waveguide NH3 lasers[J]. Opt Commun, 1977, 22: 17-21.
[42]
[43]	Schatz W. Generation of tunabie far-infrared radiation by opticai-pumping moiecuiar gas-iasers [J]. Infrared Physics Technology, 1995, 36(1): 387-393.
[44]
[45]
[46]	DeMichele A, Moretti A, Pereira D. Optically pumped 13CD3I: new Terahertz laser transitions [J]. Appl Phys B, 2011, 103: 659-662.
[47]	Vasconcellos E C C C, Jackson M, Hockel H, et al. Discovery and measurement of optically pumped far-infrared laser emissions in 13CD3OH[J]. Applied Physics B, 2003, 77 (6-7): 561-562.
[48]
[49]
[50]	Costa L F L, Moraes J C S, Cruz F C, et al. CH3OH optically pumped by a 13CO2 laser:new laser lines and assignments[J]. Applied Physics B, 2007, 86(4): 703-706.
[51]
[52]	Costa L F L, Moraes J C S, Cruz F C, et al. Infrared and far-infrared spectroscopy of 13CH3OH: TeraHertz laser lines and assignments [J]. Journal of Molecular Spectroscopy, 2007, 241(2): 151-154.
[53]
[54]	Jackson M, Petersen T, Zink L R. Frequencies and wavelengths from a new far-infrared lasing gas:13CHD2OH
[55]	Jackson M, Nichols A J, Artagnon D, et al. First laser action observed from optically pumped CH317OH[J].Quantum Electronics, 2012, 48(3): 303-306.
[56]	[J]. Quantum Electronics, 2009, 45(7): 830-832.
[57]
[58]	Keilmann F, Sheffield R L, Leite J R R, et al. Optical pumping and tunable laser spectroscopy of the v2 band of D2O[J]. Appl Phys Lett, 1975, 26: 19-22.
[59]
[60]	Evans D E, Sharp L E. Far-infrared super-radiant laser action in heavy water [J]. Optics Communications, 1976, 18 (4): 479-484.
[61]
[62]	De Michele A, Carelli G, Moretti A, et al. A new pulsed CO2 laser yielding new FIR laser lines from CH3OD pumped by the 10 P and 10 HP lines [J]. Phys B: At Mol Opt Phys, 2004, 37: 1979-1984.
[63]	Danielewicz E J, Plant T K, DeTemple T A. Hybrid output mirror for optically pumped far-infrared lasers [J]. Opt Commun, 1975, 13: 366-369.
[64]
[65]
[66]	Crenn J P, Veron D, Belland P. Theory of the transmission of metal strip gratings on a dielectric substrate: application to submillimeter laser coupling [J]. Infrared Milimeter Waves, 1986, 7: 1747-1767.
[67]
[68]	Veron D, Whitbourn L B. Strip gratings on dielectric substrates as output couplers for submillimeter lasers[J]. Appl Opt, 1986, 25: 619-628.
[69]	Bowden M D, James B W, Falconer I S, et al. Annular slot array output couplers for submillimetrelasers [J]. Opt Commun, 1992, 89: 419-422.
[70]
[71]	Densing R, Erstling A, Gogolewski M, et al. Effective far infrared laser operation with mesh couplers[J]. Infrared Phys, 1992, 33: 219-226.
[72]
[73]
[74]	Hodges D T, Foote F B, Reel R D. Effieient high-Power operation of the cw far-infrared waveguide laser [J]. Appl phys Lett, 1976, 29(10): 662-664.
[75]	Chang T Y, Lin C. Effects of buffer gases on an optically pumped CH3F FIR laser [J]. Opt Soc Am, 1976, 66: 362-369.
[76]
[77]
[78]	Hodges D T, Foote F B, Reel R D. High power operation and scaling behavior of CW optically pumped FIR waveguide lasers[J]. Quantum Electron, 1977, 13: 491-494.
[79]
[80]	Mansfield D K, Horlbeck E, Bennett C L, et al. High power operation of the 119m line of optically pumped CH3OH[J]. Infrared Millimeter Waves, 1985, 6: 867-876.
[81]	Plant T K, Newman L A, Danielewitz E J, et al. High power optically pumped far infrared lasers [J]. Microwave Theory Tech, 1974, 22: 988-990.
[82]
[83]
[84]	Evans D E, Sharp L E, James B W, et al. Far-in-frared superradiant laser action in methyl fluoride [J]. Appl Phys Lett, 1975, 26: 630-632.
[85]
[86]	Semet A, Johnson L C, Mansfield D K. A high energy D2O submillimeter laser for plasma diagnostics [J]. Infrared Millimeter Waves, 1983, 4: 231-316.
[87]	Nishi Y, Murai A. FIR laser emissions from population inversion transition by TEA-CO2 laser pumping [J]. Infrared Millimetre Waves, 1990, 11(2): 309-322.
[88]
[89]
[90]	Fetterman H R, Schlossberg H R, Waldman J. Submillimeter lasers optically pumped off resonance [J]. Opt Commun, 1972, 6: 156-159.
[91]	Panock R L, Temkin R J. Interaction of two laser fields with a three-level molecular system [J]. Quantum Electron, 1977, 13: 425-434.
[92]
[93]
[94]	Petuchowski S J, Rosenberger A T, DeTemple T A. Stimulated Raman emission in infrared excited gases [J]. Quantum Electron, 1977, 13: 476-481.
[95]
[96]	Biron D G, Temkin R J, Lax B, et al. High-intensity CO2 laser pumping of a CH3F Raman FIR laser [J]. Opt Lett, 1979, 4: 381-383.
[97]
[98]	Mathieu P, Izatt J R. Continuously tunable CH3F Raman farinfrared laser[J]. Opt Lett, 1981, 6: 369-371.
[99]
[100]	Danly B G, Evangelides S G, Temkin R J, et al. A tunable far infrared laser[J]. Quantum Electron, 1984, 20: 834-837.
[101]	DeTemple T. Pulsed optically pumped far infrared lasers [J]. Infrared and Millimeter Waves, 1979(1): 129-184.
[102]
[103]	Lee S H, Petuchowski S J, Rosenberger A T, et al. Synchronous, mode-locked pumping of gas lasers [J]. Opt Lett, 1979, 4: 6-8.
[104]
[105]
[106]	Lemley W, Nurmikko A V. High-intensity subnanosecond transients from synchronously pumped submillimeter-waves lasers[J]. Appl Phys Lett, 1979, 35: 33-35.
[107]
[108]	Lemley W, Nurmikko A V. Generation of ultrashort pulses in synchronous pumping of near-millimeter wave lasers [J]. International Journal of Infrared and Millimeter Waves, 1980, 1(1): 85-94.
[109]	Rosenberger, Chung H K, DE Temple. Sub-T2 optical pulse generation:application to optically pumped far-infrared lasers
[110]
[111]	Lang P T, Schatz W, Renk K F. Generation of subnanosecond far-infrared laser pulses in a large spectral range with a Raman D2O laser optically pumped by a continuously tunable CO2 laser [J]. Opt Commun, 1991, 84: 29-36.
[112]
[113]
[114]	Lang P T. Generation of tunable high power far-infrared radiation by stimulated Raman scattering in gaseous methyl-halides[J]. Infrared Phys, 1992, 33: 237-262.
[115]	Lang P T, Heusinger M A, Kass T, et al. Efficient generation of FIR radiation by optical pumping of D2 18O[J]. Appl Phys B, 1992, 55: 347-354.
[116]	[J].Quantum Electron, 1984, 20(5): 523-532.
[117]
[118]	Everitt H O, Skatrud D D, DeLucia F C. Dynamics and tunability of a small optically pumped CW far-infrared laser
[119]	Luo Xizhang, Zheng Xingshi. A unified miniature optically pumped NH3 FIR cavity laser [J]. J Infrared Millim Waves, 1998, 17(4): 299-302. (in Chinese) 罗锡璋, 郑兴世. 一体化的小型腔式光泵NH3 分子远红外激光器[J]. 红外与毫米波学报, 1998, 17(4): 299-302.
[120]
[121]
[122]	Behn R, Marc-Andge Dopertuis, Ivar Khelaerg, et al. Buffer gases to increase the efficiency of an optically pumped far infraed D2O laser[J]. IEEE Journal of Quantum Electronics, 1985, 21(8): 1278-1285.
[123]
[124]
[125]	[J]. Appl Phys Lett, 1986, 49: 995-997.
[126]
[127]

Research and development for optically pumped far-infrared gas laser

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通讯作者: 陈斌, bchen63@163.com

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