An all gas-phase iodine laser based on amine chemistry

Masuda, Taizo; Nakamura, Tomonari; Endo, Masamori; Uchiyama, Taro

doi:10.1016/j.cplett.2009.05.065

Cited by 7 publications

(6 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A block diagram of the experimental setup is shown in figure 1. The system is identical to our original AGIL that used HI as the atomic iodine donor (HI-AGIL) [3,13], except that this setup has a different iodine source and injection point. The upstream section is a circular Pyrex tube with a diameter of 20 mm, and the downstream section is a rectangular duct with an optical cavity that has a width of 50 mm and a height of 10 mm.…”

Section: Methodsmentioning

confidence: 99%

“…In addition, the long-term storage of BHP is difficult since it undergoes a self-decomposition reaction, which limits the use of COILs in remote places. Since iodine is an ideal lasant species, scientists have sought alternative energy donors that are produced by gas-phase chemical reactions to avoid 3 Present address: Toyota Motor Corporation, Higashifuji Technical Center, 1200, Mishuku, Susono, Shizuoka 410-1193, Japan. wet chemistry.…”

Section: Introductionmentioning

confidence: 99%

“…Such lasers are called all gas-phase iodine lasers (AGILs). The continuous-wave AGILs that have been developed employ either an azide- [2] or an amine-based scheme [3]. In both these schemes, HI is used as the iodine atom source and iodine atoms are pumped by the energy transfer reaction from NCl(a 1 ), which is isovalent with O 2 (a 1 ) by the following reaction: NCl(a 1 ) + I( 2 P 3/2 ) → NCl( 3 ) + I( 2 P 1/2 ).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Characteristics of an all gas-phase iodine laser using molecular iodine as atomic iodine donor

Masuda¹,

Nakamura²,

Endo³

2010

J. Phys. D: Appl. Phys.

Self Cite

View full text Add to dashboard Cite

The laser action of an all gas-phase iodine laser (AGIL), which uses molecular iodine as a source of iodine atoms, has been demonstrated. The laser is based on the energy transfer reaction between metastable NCl(a 1Δ) and ground state I(2P3/2) atoms, which are produced by the electric discharge of a mixture of I2 and He. At fixed flow rates of the chemical species, the laser output powers are measured at three different positions in a flow reactor. The output power is characterized by a function of the optical axis position and is in reasonable agreement with the numerical simulation. A repetitive pulse of laser output at 50 Hz with a duty factor of 40% is observed. The highest output power is 40 mW at 210 mm downstream from the mixing point of I/H/He and NCl3. This is 80% of the output power generated from the conventional system using HI as an iodine donor. The measured results of the time-resolved laser output power suggest that the output power of the I2-AGIL is more sensitive to the electric discharge plasma intensity as compared with that of the HI-AGIL. An AGIL operated using I2 could potentially have the same output power as that of an AGIL operated using HI if a continuous-wave electric discharge generator is used.

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Characteristics of an all gas-phase iodine laser using molecular iodine as atomic iodine donor

Masuda¹,

Nakamura²,

Endo³

2010

J. Phys. D: Appl. Phys.

Self Cite

View full text Add to dashboard Cite

show abstract

“…The all gas-phase iodine laser (AGIL) − is a laser device that produces an inversion on the 1315 nm spin orbit transition of atomic iodine via near resonant energy transfer between electronically excited molecule, NCl(a), and ground-state iodine atom. NCl ( a ) + I → NCl ( X ) + I * …”

Section: Introductionmentioning

confidence: 99%

Combustion Parametric Optimization for All Gas-Phase Iodine Laser Driven by D₂/NF₃/DCl Combustion and Self-Pooling of NCl(a) Catalyzed by NF(a)/NF(b)

et al. 2009

View full text Add to dashboard Cite

Combustion parametric optimization for all gas-phase iodine laser driven by D(2)/NF(3)/DCl combustion was performed, and an energy transfer channel called self-pooling of NCl(a) catalyzed by NF(a)/NF(b) was presented. The results show that a flow rate ratio of NF(3) and D(2) of 0.8 to 1.5 and DCl and D(2) of >1.5 is necessary for high efficiency of Cl atoms generation. The results also show that NF(a) and NF(b) from the reaction of HN(3) and residual F atoms or from the D(2)/NF(3) combustion have a serious effect on the generation and transport of NCl(a) via the NF(a) direct quenching of NCl(a) or via the catalysis of NF(a)/NF(b) on NCl(a) self-pooling. The generation of NF can be avoided if sufficient DCl was used and the NF(3)/D(2) flow rate ratio was properly controlled.

show abstract

“…There are at least three ways to produce the energy carrier NCl(a): the thermal decomposition or photo-dissociation of ClN 3 [13][14][15][16][17][18][19], the reaction of HN 3 and Cl atoms [2][3][4][8][9][10][11][12] and the reaction of NCl 3 and H atoms [20][21][22][23][24]. The positive gain and demonstration of lasing at 1315nm have been obtained with the latter two methods to generate NCl(a).…”

mentioning

confidence: 98%

Experimental study on supersonic all gas-phase iodine laser driven by NF₃/D₂/DCl/CF₃I combustion

Tang

Duo

et al. 2013

XIX International Symposium on High-Power Laser Systems and Applications 2012

View full text Add to dashboard Cite

A supersonic all gas-phase iodine laser driven by NF 3 /D 2 /DCl/CF 3 I combustion has been experimentally studied. the gain signals of I( 2 P 3/2 ,F=4)← I( 2 P 1/2 ,F=3) at 1315.246nm and I( 2 P 3/2 ,F=3)← I( 2 P 1/2 ,F=3) at 1315.222nm were observed with an intensity of 3x10 -5 cm -1 and 1x10 -5 cm -1 respectively. The small signal gain of I( 2 P 3/2 ,F=4)← I( 2 P 1/2 ,F=3) at different location relative to HN 3 injector along the flow direction also was obtained. The experimental results indicate that the AGIL driven by NF 3 /D 2 /DCl/CF 3 I combustion is feasible.

show abstract

An all gas-phase iodine laser based on amine chemistry

Cited by 7 publications

References 9 publications

Characteristics of an all gas-phase iodine laser using molecular iodine as atomic iodine donor

Characteristics of an all gas-phase iodine laser using molecular iodine as atomic iodine donor

Combustion Parametric Optimization for All Gas-Phase Iodine Laser Driven by D₂/NF₃/DCl Combustion and Self-Pooling of NCl(a) Catalyzed by NF(a)/NF(b)

Experimental study on supersonic all gas-phase iodine laser driven by NF₃/D₂/DCl/CF₃I combustion

Contact Info

Product

Resources

About

An all gas-phase iodine laser based on amine chemistry

Cited by 7 publications

References 9 publications

Characteristics of an all gas-phase iodine laser using molecular iodine as atomic iodine donor

Characteristics of an all gas-phase iodine laser using molecular iodine as atomic iodine donor

Combustion Parametric Optimization for All Gas-Phase Iodine Laser Driven by D2/NF3/DCl Combustion and Self-Pooling of NCl(a) Catalyzed by NF(a)/NF(b)

Experimental study on supersonic all gas-phase iodine laser driven by NF3/D2/DCl/CF3I combustion

Contact Info

Product

Resources

About

Combustion Parametric Optimization for All Gas-Phase Iodine Laser Driven by D₂/NF₃/DCl Combustion and Self-Pooling of NCl(a) Catalyzed by NF(a)/NF(b)

Experimental study on supersonic all gas-phase iodine laser driven by NF₃/D₂/DCl/CF₃I combustion