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The emission of a 41 THz quantum cascade laser (THz QCL) has been measured by a spectrally-matching terahertz quantum-well photodetector (THz QWP). The measured emission spectra have been analyzed with respect to the spectral shape and peak position. The relative light power of the laser under different drive currents have been estimated from the emission spectra and then the lasing domain and threshold current density of the laser has been determined. The temperature-dependent response of THz QWP to the laser has also been investigated. The analyzed results indicate that the THz QWPs could be a good detector for characterizing the emission properties of the THz QCLs and may be the receivers in the terahertz communications.
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Keywords:
- terahertz quantum-well photodetectors /
- terahertz quantum-cascade lasers /
- terahertz communication /
- Fourier transform inflared spectroscopy
[1] ［1］Ferguson B, Zhang X C 2002 Nature Mater. 1 26
[2] ［2］Tonouchi M 2007 Nat. Photon. 1 97
[3] ［3］Zhang X B, Shi W 2008 Acta Phys. Sin. 57 4984 (in Chinese) ［张显斌、施卫 2008 57 4984］
[4] ［4］Khler R, Tredicucci A, Beltram F, Beere H E, Linfield E H, Davies A G, Ritchie D A, Iotti R, Rossi F 2002 Nature 417 156
[5] ［5］Liu H C, Song C Y, Spring Thorpe A J, Cao J C 2004 Appl. Phys. Lett. 84 4068
[6] ［6］Graf M, Scalari G, Hofstetter D, Faist J, Beere H, Linfield E, Ritchie D, Davies G 2004 Appl. Phys. Lett. 84 475
[7] ［7］Scalari G, Ajili L, Faist J, Beere H, Linfield E, Ritchie D, Davies G 2003 Appl. Phys. Lett. 82 3165
[8] ［8］Williams B S, Kumar S, Hu Q, Reno J L 2005 Opt. Express 13 3331
[9] ［9］Luo H, Laframboise S R, Wasilewski Z R, Aers G C, Liu H C, Cao J C 2007 Appl. Phys. Lett. 90 041112
[10] ］Walther C, Fischer M, Scalari G, Terazzi R, Hoyler N, Faist J 2007 Appl. Phys. Lett. 91 131122
[11] ］Kumar S, Hu Q, Reno J L 2009 Appl. Phys. Lett. 94 131105
[12] ］Luo H, Liu H C, Song C Y, Wasilewski Z R 2005 Appl. Phys. Lett. 86 231103
[13] ］Liu H C, Luo H, Song C Y, Wasilewski Z R, Spring Thorpe A J, Cao J C 2007 Infrared Phys. Technol. 50 191
[14] ］Patrashin M, Hosako I 2008 Opt. Lett. 33 168
[15] ］Guo X G, Tan Z Y, Cao J C, Liu H C 2009 Appl. Phys. Lett. 94 201101
[16] ］Luo H, Liu H C, Song C Y, Wasilewski Z R, Spring Thorpe A J 2006 Proc. SPIE 6386 638611
[17] ］Zhang R, Li H, Cao J C, Feng S L 2009 Acta Phys. Sin. 58 4618 (in Chinese) ［张戎、黎华、曹俊诚、封松林 2009 58 4618］
[18] ］Grant P D, Dudek R, Buchanan M, Liu H C 2006 IEEE Photon. Technol. Lett. 18 2218
[19] ］Hosako I, Sekine N, Patrashin M, Yasuda H 2007 Proc. SPIE 6772 67720R
[20] ］Johnson T J, Zachmann G 2000 Introduction to Step-Scan FTIR (Chap. 2) (Germany, Ettlingen: Bruker Optik GmbH) p18
[21] ］Liu H C, Wchter M, Ban D, Wasilewski Z R, Buchanan M, Aers G C, Cao J C, Feng S L, Williams B S, Hu Q 2005 Appl. Phys. Lett. 87 141102
[22] ］Levine B F 1993 J. Appl. Phys. 74 R1
[23] ］Bastard G, Mendez E E, Chang L L, Esaki L 1983 Phys. Rev. B 28 3241
[24] ］Williams B S, Callebaut H, Kumar S, Hu Q, Reno J L 2003 Appl. Phys. Lett. 82 1015
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[1] ［1］Ferguson B, Zhang X C 2002 Nature Mater. 1 26
[2] ［2］Tonouchi M 2007 Nat. Photon. 1 97
[3] ［3］Zhang X B, Shi W 2008 Acta Phys. Sin. 57 4984 (in Chinese) ［张显斌、施卫 2008 57 4984］
[4] ［4］Khler R, Tredicucci A, Beltram F, Beere H E, Linfield E H, Davies A G, Ritchie D A, Iotti R, Rossi F 2002 Nature 417 156
[5] ［5］Liu H C, Song C Y, Spring Thorpe A J, Cao J C 2004 Appl. Phys. Lett. 84 4068
[6] ［6］Graf M, Scalari G, Hofstetter D, Faist J, Beere H, Linfield E, Ritchie D, Davies G 2004 Appl. Phys. Lett. 84 475
[7] ［7］Scalari G, Ajili L, Faist J, Beere H, Linfield E, Ritchie D, Davies G 2003 Appl. Phys. Lett. 82 3165
[8] ［8］Williams B S, Kumar S, Hu Q, Reno J L 2005 Opt. Express 13 3331
[9] ［9］Luo H, Laframboise S R, Wasilewski Z R, Aers G C, Liu H C, Cao J C 2007 Appl. Phys. Lett. 90 041112
[10] ］Walther C, Fischer M, Scalari G, Terazzi R, Hoyler N, Faist J 2007 Appl. Phys. Lett. 91 131122
[11] ］Kumar S, Hu Q, Reno J L 2009 Appl. Phys. Lett. 94 131105
[12] ］Luo H, Liu H C, Song C Y, Wasilewski Z R 2005 Appl. Phys. Lett. 86 231103
[13] ］Liu H C, Luo H, Song C Y, Wasilewski Z R, Spring Thorpe A J, Cao J C 2007 Infrared Phys. Technol. 50 191
[14] ］Patrashin M, Hosako I 2008 Opt. Lett. 33 168
[15] ］Guo X G, Tan Z Y, Cao J C, Liu H C 2009 Appl. Phys. Lett. 94 201101
[16] ］Luo H, Liu H C, Song C Y, Wasilewski Z R, Spring Thorpe A J 2006 Proc. SPIE 6386 638611
[17] ］Zhang R, Li H, Cao J C, Feng S L 2009 Acta Phys. Sin. 58 4618 (in Chinese) ［张戎、黎华、曹俊诚、封松林 2009 58 4618］
[18] ］Grant P D, Dudek R, Buchanan M, Liu H C 2006 IEEE Photon. Technol. Lett. 18 2218
[19] ］Hosako I, Sekine N, Patrashin M, Yasuda H 2007 Proc. SPIE 6772 67720R
[20] ］Johnson T J, Zachmann G 2000 Introduction to Step-Scan FTIR (Chap. 2) (Germany, Ettlingen: Bruker Optik GmbH) p18
[21] ］Liu H C, Wchter M, Ban D, Wasilewski Z R, Buchanan M, Aers G C, Cao J C, Feng S L, Williams B S, Hu Q 2005 Appl. Phys. Lett. 87 141102
[22] ］Levine B F 1993 J. Appl. Phys. 74 R1
[23] ］Bastard G, Mendez E E, Chang L L, Esaki L 1983 Phys. Rev. B 28 3241
[24] ］Williams B S, Callebaut H, Kumar S, Hu Q, Reno J L 2003 Appl. Phys. Lett. 82 1015
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