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| Author | Hocker, L. O.; Sokoloff, D. R.; Daneu, V.; Szoke, A.; Javan, A. | ||||
| Title | Frequency mixing in the infrared and far-infrared using a metal-to-metal point contact diode | Type | Journal Article | ||
| Year | 1968 | Publication | Applied Physics Letters | Abbreviated Journal | Appl Phys Lett |
| Volume | 12 | Issue | 12 | Pages  |
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| Keywords | optical antennas | ||||
| Abstract | Metalâ€toâ€metal point contact diodes were used to obtain the 54â€GHz beat notes between two adjacent 10.6â€μ CO2 laser transitions. The speed of the diodes in the farâ€infrared is at least 1000 GHz. This was tested with a 337â€μ HCN laser. | ||||
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| Notes | Approved | no | |||
| Call Number | RPLAB @ gujma @ | Serial | 742 | ||
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| Author | Baryshev A.; Hovenier J.N.; Adam A.J.L.; Kašalynas I.; Gao J.R.; Klaassen T.O.; Williams B.S.; Kumar S.; Hu Q.; Reno J.L. | ||||
| Title | Phase locking and spectral linewidth of a two-mode terahertz quantum cascade laser | Type | Journal Article | ||
| Year | 2006 | Publication | Physics Letters | Abbreviated Journal | |
| Volume | 89 | Issue | Pages |
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| Abstract | We have studied the phase locking and spectral linewidth of an ~ 2.7 THz quantum cascade laser by mixing its two lateral lasing modes. The beat signal at about 8 GHz is compared with a microwave eference by applying conventional phase lock loop circuitry with feedback to the laser bias current. Phase locking has been demonstrated, resulting in a narrow beat linewidth of less than 10 Hz. Under requency stabilization we find that the terahertz line profile is essentially Lorentzian with a minimum linewidth of ~ 6.3 kHz. Power dependent measurements suggest that this linewidth does not approach the Schawlow-Townes limit. | ||||
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| Notes | Approved | no | |||
| Call Number | RPLAB @ atomics90 @ | Serial | 967 | ||
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