Tone-burst modulated color-center-laser spectroscopy.
نویسندگان
چکیده
A new modulation technique useful for high-resolution spectroscopy with tunable infrared lasers is described. The high sensitivity of this method is demonstrated by measurements of NOupsilon = O? 2 overtone transitions and of transitions in the fundamental band of OH with a color-center laser operating near 2.7 microm.
منابع مشابه
Transient responses to tone bursts.
Investigating theoretical conditions under which linearly-operating tuned structures produce click-like transient responses to onsets and offsets of trapezoidal tone bursts, we come to the following conclusions: (1) each of the four corners of the trapezoidal tone burst is capable of eliciting such a response; (2) the amplitude of the response and its dependence on the frequency of the modulate...
متن کاملDetection of flaws on metal surfaces using tone burst laser ultrasound
Metal surface flaws on can be detected using the frequency transmission characteristics of surface acoustic waves (SAW). In addition, noncontact, remote detection can be made possible by using laser ultrasound. So far, broadband SAW generated by a single generation laser has been used for surface flaw detection[1]. Results have shown that the SAW transmitted across a slit of depth 0.5 mm showed...
متن کاملEffect of Conventional in-Office Bleaching and Laser Assisted Bleaching at Two Different Wavelengths on Color Stability of Glass-Ionomers
Background and Aim: Bleaching can improve the color of restorative materials and resolve problems related to discoloration or color mismatch. This study evaluated the effect of in-office bleaching method in conjunction with two different laser wavelengths on color change of two types of glass-ionomer restorative materials (light-cure and self-cure). Materials and Methods: In this experimenta...
متن کاملLaser spectroscopic studies of the pure rotational &,(O) and l&(O) transitions of solid parahydrogen
High resolution spectrum of multipole-induced transitions of solid parahydrogen was recorded using diode and difference frequency laser spectroscopy. The J = 4 + 0 pure rotational UO( 0) transition observed in the diode spectrum agrees well in frequency with the value reported by Balasubramanian et al. [ Phys. Rev. Lett. 47, 1277 ( 1981) ] but we observed a spectral width smaller by about a fac...
متن کاملRise time and center-frequency effects on auditory brainstem responses to high-frequency tone bursts.
The effects of rise time and center frequency on the auditory brainstem response (ABR) elicited by high-frequency tone bursts were examined in six normal-hearing adults. Tone bursts with rise times of 0.1, 0.25, 0.5, and 1.0 msec, duration of 2 msec, and center frequencies of 8, 10, and 12 kHz were used in this study. The absolute latencies of waves I, III, and V were obtained in all subjects, ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Optics letters
دوره 8 6 شماره
صفحات -
تاریخ انتشار 1983