We analyzed the spectroscopic performance of a difference-frequency source that utilizes a 5-W Yb-fiber amplifier for the "signal" radiation in order to increase the "idler" power generated around 4.3 μm. The amplifier is seeded by a monolithic-cavity Nd;YAG laser at 1064 nm. The intensity noise spectral density of the "idler" radiation was characterized. Cavity-enhanced saturated-absorption spectroscopy was also performed to test the frequency resolution. In particular, we observed the Lamb-dip spectrum of the ro-vibrational (0000-000) R(0) transition of 17O12C16O in natural abundance. To our knowledge, this is the first observation of that transition by the Lamb-dip technique.
Borri, S., Cancio, P., De Natale, P., Giusfredi, G., Mazzotti, D., Tamassia, F. (2003). Power-boosted difference-frequency source for high-resolution infrared spectroscopy. APPLIED PHYSICS. B, LASERS AND OPTICS, 76(4), 473-477 [10.1007/s00340-003-1133-7].
Power-boosted difference-frequency source for high-resolution infrared spectroscopy
Tamassia F.
2003
Abstract
We analyzed the spectroscopic performance of a difference-frequency source that utilizes a 5-W Yb-fiber amplifier for the "signal" radiation in order to increase the "idler" power generated around 4.3 μm. The amplifier is seeded by a monolithic-cavity Nd;YAG laser at 1064 nm. The intensity noise spectral density of the "idler" radiation was characterized. Cavity-enhanced saturated-absorption spectroscopy was also performed to test the frequency resolution. In particular, we observed the Lamb-dip spectrum of the ro-vibrational (0000-000) R(0) transition of 17O12C16O in natural abundance. To our knowledge, this is the first observation of that transition by the Lamb-dip technique.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
