Design and performance of a 20 watt copper vapour laser

Mittal, J.K.; Bhadani, P. K.; Singh, Brij Mohan; Abhinandan, Lala; Bhatnagar, R.

doi:10.1088/0022-3735/21/4/010

Cited by 21 publications

(4 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Its energy can be increased further by operating CVL in MOPA configuration. Both the pump laser as well as tunable dye lasers used in the present study, are developed in-house [15]. The dye laser-1 unit used for Li 1st_step resonant excitation consists of an oscillator and amplifier with output power of 550 mW at ∼671 nm.…”

Section: Methodsmentioning

confidence: 99%

Laser isotope separation scheme of lithium by three-color photoionization

et al. 2020

View full text Add to dashboard Cite

Lithium isotopes (6,7Li) are of prime importance for nuclear industry. Especially, highly enriched 6Li is needed in fusion reactors to produce clean energy on large scale. In this paper, we report studies on Li isotope separation by isotope-selective three-color photoionization using ‘kHz’ repetition rate narrowband dye lasers in conjunction with time-of-flight mass spectrometer. The method established yields a high degree of selectivity by tuning the dye lasers to respective 6,7Li resonance levels and demonstrated the enhancement of low abundant (7.5%) 6Li up to 92.86% at signal level. The dependence of photo-ionization yield, isotope selectivity and abundance enhancement on laser powers are also investigated. The proposed photo-ionization scheme [2S1/2 → 2P1/2,3/2 → 2D3/2,5/2 1S0 (Li+)] enables the high photo-ionization yield and large enhancement (>12 fold) in 6Li abundance.

show abstract

Section: Methodsmentioning

confidence: 99%

Laser isotope separation scheme of lithium by three-color photoionization

et al. 2020

View full text Add to dashboard Cite

show abstract

“…The temperature of the dye solution was controlled to 23.3 ± 0.1 • C by PID controller. A homemade [14,15] CVL (510.6 nm wavelength, 4 W average power, 60 ns pulse duration, 5.6 kHz pulse repetition frequency, 47 mm beam diameter) was used as the pump source. The pump beam was transversely line focused onto the dye cell through a combination of a spherical lens (focal length, 40 cm) and a cylindrical lens (focal length, 6 cm).…”

Section: Methodsmentioning

confidence: 99%

Spectral fluctuations of a high repetition rate dye laser through a flowing gain medium

Singh¹,

Vora²

2013

Laser Phys.

View full text Add to dashboard Cite

In this paper, wavelength and bandwidth fluctuations of a Rhodamine 6G dye laser, transversely pumped by CVL, through a flowing gain medium are investigated. The gain medium mass flow rates were varied in the range 1–6 l min−1 (LPM). Analysis of the wavelength and bandwidth fluctuations of the dye laser was carried out using a high resolution Fabry–Perot etalon based setup and composite images generated from spectral profiles. The wavelength varied within 0.0290, 0.0240, 0.0200, 0.0120, 0.0110 and 0.0200 nm while the bandwidth was within 1.340, 0.912, 0.679, 0.301, 0.296 and 0.509 GHz at flow rates of 1.0, 2.0, 3.0, 4.0, 5.0 and 6.0 LPM, respectively. The minimum fluctuations, which depend on the experimental conditions, were observed at ∼5 LPM. Spectral fluctuations at particular flow rates depend mainly on the microscopic fluctuations in the temperature and flow velocity inside the boundary layers.

show abstract

“…Another important laser in the class is gold vapour laser operating at red (628 nm) and UV (312 nm) spectrum. In Indian context, a mature technology development programme of high beam quality, high-power CVL exists [4][5][6][7][8][9][10] at RRCAT, Indore, for generation of high repetition rate UV and tunable visible laser radiations and their applications. Since this depopulation process is slow, CVL operation is only pulsed albeit at high repetition rates.…”

Section: Metal Vapour Lasersmentioning

confidence: 99%

Gas Lasers

Dixit¹

2014

Springer Proceedings in Physics

View full text Add to dashboard Cite

The field of gas lasers, started with the invention of He-Ne laser in 1961, has witnessed tremendous growth in terms of technology development, research into gaseous gain medium, resonator physics and application in widely diverse arenas. This was possible due to high versatility of gas lasers in terms of operating wavelengths, power, beam quality and mode of operation. In recent years, there is a definite trend to replace the gas lasers, wherever possible, by more efficient and compact solid-state lasers. However, for many industrial, medical and military applications, the gas lasers still rule the roost due to their high-power capabilities with good beam quality at specific wavelengths. This chapter presents a short review covering the operating principle, important technical details and application potential of all the important gas lasers such as He-Ne, CO 2 , argon ion, copper vapour, excimer and chemical lasers. These neutral atoms, ions and molecule gas lasers are discussed as per applicable electrical, chemical and optical excitation schemes. The optically pumped gas lasers, recently experiencing resurgence, are discussed in the context of far infrared THz molecular lasers, diode-pumped alkali lasers and optically pumped gas-filled hollow-core fibre lasers.

show abstract

Design and performance of a 20 watt copper vapour laser

Cited by 21 publications

References 11 publications

Laser isotope separation scheme of lithium by three-color photoionization

Laser isotope separation scheme of lithium by three-color photoionization

Spectral fluctuations of a high repetition rate dye laser through a flowing gain medium

Gas Lasers

Contact Info

Product

Resources

About