A tunable picosecond dye laser for use in dioxin analysis.
نویسندگان
چکیده
A distributed-feedback dye laser with a quenching cavity was designed and constructed for generating a tunable picosecond pulse with a narrow spectral linewidth. This nearly transform-limited pulse was succeedingly amplified by a triple-pass off-axis amplifier. The pulse duration and the spectral linewidth were 60 ps and 9.4 pm, respectively. The amplified pulse was frequency-doubled by second-harmonic generation, producing a 0.5-mJ pulse with no background emission. The potential advantage of this laser in the analysis of dioxin based on supersonic jet/resonance-enhanced multiphoton ionization/mass spectrometry is discussed.
منابع مشابه
Development of a narrow-band tunable picosecond dye laser and its application to excited-state lifetime measurement of a chlorinated aromatic hydrocarbon.
The development of a distributed-feedback dye laser, with a pulse width and a line width of 25 ps and 8.78 pm, respectively, is described. Using this nearly Fourier-transform-limited pulse, we measured the first singlet-excited-state lifetime of 1,2,4-trichlorobenzene. The tunable picosecond dye laser developed herein has a potential for the lifetime measurement and the efficient multiphoton io...
متن کاملPicosecond UV laser induced morphological, biochemical and biological changes in Bombyx mori
Background: In the light of various applications of UV laser in biological system, we have investigated the effect of picosecond UV laser radiation on silkworm Bombyx mori. Materials and Methods: The eggs of NB4D2 of different stages were exposed to pico second pulse laser at 355 nm from Nd:YAG laser for different durations. Results: Due to irradiation alterations in crescent larval body...
متن کاملGeneration of synchronized trains of picosecond laser pulses at two wavelengths in a single-cavity synchronously mode-locked dye laser
Synchronized trains of picosecond laser pulses of two different wavelengths constitute a powerful tool to study fast processes in materials. In the last several years this scheme was used to study vibrational dephasing of molecular monolayers on surfaces,’ optical nonlinearities in the polydiacetylene PTS conjugated polymer,“‘3 and the solvent dependance of the rotational diffusion of Cresyl Vi...
متن کاملHigh intensity picosecond Fourier limited pulses : design of a synchronously pumped dye laser system
2014 We present a simple design for obtaining high-intensity, Fourier limited picosecond pulses. A Nd : Yag picosecond laser is used to synchronously pump a dye oscillator/amplifier system. The dye oscillator is of the Littman type. Up to 1.5 mJ of energy is obtained in a 20 ps pulse with a bandwidth of 30 GHz after amplification. Revue Phys. Appl. 20 (1985) 527-530 JUILLET 1985, 1
متن کاملProlonged-excitation coherent Raman spectroscopy with spectral resolution beyond the transition linewidth using two tunable picosecond dye lasers
Received June 11, 1984; accepted September 20, 1984 A time-resolved coherent anti-Stokes Raman technique is demonstrated that yields a spectral resolution beyond the linewidth obtained in spontaneous Raman spectroscopy. Two picosecond dye lasers, independently tunable with low timing jitter, are used. The coherent material excitation is generated by long pump pulses and monitored by short delay...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Analytical sciences : the international journal of the Japan Society for Analytical Chemistry
دوره 18 3 شماره
صفحات -
تاریخ انتشار 2002