Direct measurement of multiphoton molecular absorption of IR laser radiation by pyroelectric detector

Ambartzumian, R. V.; Dorozhkin, L. M.; Макаров, Г. Н.; Puretzky, Alexander A.; Chayanov, B. A.

doi:10.1007/bf00901066

Cited by 36 publications

(4 citation statements)

References 3 publications

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“…However, the low-temperature photolysis of lb did not produce any evidence for intramolecular hydrogen ab- straction or for a 1,4 biradical. This finding is quite analogous to the failure of 2-methyl-and of 3,3-dimethylvinylmethylene (5,6) to undergo intramolecular…”

Section: Comparison Of the D Values Of The O-carboranylcarbenesmentioning

confidence: 57%

“…with that of a carbene having a completely localized it electron, methylene (Z)Ch2 = 0.76 cm'1),9 indicates that the extent of it delocalization onto the carboranyl group is small. A it spin density, p = 0.9, is estimated for the divalent carbon from the ratio of to DCh2• In contrast, (6) Stanko, V. I.; Khrapov, V. V.; Klimova, A. I.; Shoolery, J. N. Zh.…”

Section: Comparison Of the D Values Of The O-carboranylcarbenesmentioning

confidence: 99%

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o-Carboranylcarbene. A largely localized divalent carbon intermediate

Hutton¹,

Roth²,

Chari³

1981

J. Phys. Chem.

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Section: Comparison Of the D Values Of The O-carboranylcarbenesmentioning

confidence: 57%

Section: Comparison Of the D Values Of The O-carboranylcarbenesmentioning

confidence: 99%

o-Carboranylcarbene. A largely localized divalent carbon intermediate

Hutton¹,

Roth²,

Chari³

1981

J. Phys. Chem.

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“…The expression for the rate of radiation-induced excitation in some incoherent case is of the form 16 WI,: 2 i,: g)l,: G(6)…”

Section: Simulation Of the Ir Absorptionmentioning

confidence: 99%

Nonlinear Absorption and Far‐Infrared Generation Under the Excitation of Ammonia Molecules by Strong IR Radiation

1987

Self Cite

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We have investigated the excitation of N14H3 molecules (the pressure is 10−2 − 1 Torr) under the effect of pulse radiation of the CO2-laser in a wide range of fluences (Φ = 10−3−10 J/cm2) and detunings of the laser frequency from the absorption lines of the vibrational-rotational transition of the ammonia band ν2. It is shown that the efficient excitation of ammonia under the influence of nonresonance IR radiation is due to the power broadening. In this case the calculation, which employs no fitting parameters, describes the experimental results within experimental errors. It is shown that the abnormally high absorption of ammonia in the case of resonance pumping is associated with an intense FIR generation which leads to elimination of the rotational bottle neck under the excitation of molecules.

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Studies on high-intensity pulsed molecular beams and flows interacting with a solid surface

Макаров¹

2003

Uspekhi Fizicheskikh Nauk

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A high-intensity, pulsed, gasdynamically cooled supersonic molecular beam interacting with a solid surface produces a pressure shock with non-equilibrium conditions T 2Y tr 5 T 2Y rot 5 T 2Y vib inverse to those in the incident beam, T 1Y tr 4 T 1Y rot 4 T 1Y vib , (T iY tr , T iY rot and T iY vib are the translational, rotational and vibrational molecular temperatures, respectively). This provides the possibility for studying the isotopically selective IR multiphoton molecular dissociation in the new non-equilibrium conditions and for considerably increasing the efficiency of the process. Due to pressure shock formation near the surface, duration-controlled molecular beam pulses, intense kinetic-energy-variable secondary molecular beams, and intense beams of accelerated cold radicals can be obtained. In the present paper, research aimed at producing duration-controlled molecular beams, high-intensity secondary pulsed molecular beams, highenergy secondary pulsed molecular beams with IR-laser-controlled kinetic energy, and low-energy molecular beams is reviewed.

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Direct measurement of multiphoton molecular absorption of IR laser radiation by pyroelectric detector

Cited by 36 publications

References 3 publications

o-Carboranylcarbene. A largely localized divalent carbon intermediate

o-Carboranylcarbene. A largely localized divalent carbon intermediate

Nonlinear Absorption and Far‐Infrared Generation Under the Excitation of Ammonia Molecules by Strong IR Radiation

Studies on high-intensity pulsed molecular beams and flows interacting with a solid surface

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