Photoelectron imaging on vibrational excitation and Rydberg intermediate states in multi-photon ionization process of NH<sub>3</sub> molecule

Ya-Nan Sun; Yan-Hui Wang; Le-Le Song; Hai-Bin Du; Xiao-Chun Wang; Lan-Lai He; Si-Zuo Luo; Qin Yang; Jing Leng; Fu-Chun Liu

doi:10.1088/1674-1056/ab9431

Chinese Physics B, Volume. 29, Issue 9, (2020)

Photoelectron imaging on vibrational excitation and Rydberg intermediate states in multi-photon ionization process of NH₃ molecule

Ya-Nan Sun^1,4, Yan-Hui Wang², Le-Le Song^1,3, Hai-Bin Du⁵, Xiao-Chun Wang^1,4, Lan-Lai He^1,4, Si-Zuo Luo^1,4, Qin Yang^1,4, Jing Leng^1,4, and Fu-Chun Liu^1,4、†

Author Affiliations

¹Institute of Atomic and Molecular Physics, Jilin University, Changchun 3002, China

²College of Electronic Science and Engineering, State Key Laboratory on Integrated Optoelectronics, Jilin University, Changchun 13001, China

³Jilin Institute of Chemical Technology, Jilin 12022, China

⁴Jilin Provincial Key Laboratory of Applied Atomic and Molecular Spectroscopy, Jilin University, Changchun 130012, China

⁵Department of Comprehensive, Harbin City Vocational College, Haerbin 10000, China

show less

Figures & Tables(10)

Fig. 1. Vibrational levels in different excited states of NH₃ and NH3+ without the existence of ponderomotive force potential. Single arrow represents the energy of a photon, and double arrow refers to the detected kinetic energy (KE) of electrons.

Download full size

View in Article

Fig. 2. Photoelectron images of NH₃ molecules. The laser wavelength is 400 nm, and the intensity range is 1.01 × 10¹³ W/cm²–1.01 × 10¹⁴ W/cm². (a)–(n) Corresponding photoelectron distribution images with the laser intensity of 1.01, 1.27, 1.52, 1.90, 2.53, 3.17, 3.80, 4.43, 5.07, 5.70, 6.30, 7.60, 8.87, 10.10 × (10¹³ W/cm²). Horizontal and vertical coordinates are x and y pixels of CCD, respectively, and the direction of laser polarization is represented by arrows.

Download full size

View in Article

Fig. 3. Kinetic energy distributions from slow electrons within the range of 0 eV–3.1 eV with laser intensities being 1.0, 1.27, 1.52, 1.90, 2.53, 3.17, 3.80, 4.43, 5.07, 5.70, 6.30, 7.60, 8.87, and 10.1 × (10¹³ W/cm²).

Download full size

View in Article

Fig. 4. Kinetic energy distributions of fast electrons within the range of 3.1 eV–10 eV with laser intensities being 1.01, 1.27, 1.52, 1.90, 2.53, 3.17, 3.80, 4.43, 5.07, 5.70, 6.30, 7.60, 8.87, and 10.1 × (10¹³ W/cm²).

Download full size

View in Article

Fig. 5. Angular distributions of peaks 1, 2, 3, and 4, corresponding to 1.01 × 10¹³ W/cm² laser intensity.

Download full size

View in Article

Fig. 6. Angular distributions of peak 4 at different laser intensities.

Download full size

View in Article

Fig. 7. Angular distribution of peak 5 at laser intensity 5.07 × 10¹³ W/cm².

Download full size

View in Article

Fig. 8. Angular distribution of peaks 4, 5, and 6 at the 5.07 × 10¹³-W/cm² laser intensity.

Download full size

View in Article

Fig. 9. Results and identification for multi-photon processes of ammonia in the 400-nm wavelength laser field. Colored arrows in this picture illustrate different multi-photon processes; all photons have the 400-nm wavelength.

Download full size

View in Article

Table 1. In non-ponderomotive force case, values of energy needed for ammonia molecule to transform from the X^∼ state to different vibration levels of (upper) A state and (lower) ammonia ion.

View table

View in Article

Table 1. In non-ponderomotive force case, values of energy needed for ammonia molecule to transform from the X^∼ state to different vibration levels of (upper) A state and (lower) ammonia ion.

NH₃ (A^∼) $v_{2}^{'}$
	$V_{2}^{'} = 0$	$V_{2}^{'} = 1$	$V_{2}^{'} = 2$	$V_{2}^{'} = 3$	$V_{2}^{'} = 4$	$V_{2}^{'} = 5$
Excitation energy/eV	5.73	5.83	5.95	6.06	6.17	6.29
(X∼)v2
Ionization energy/eV	V2 = 2	V2 = 3	V2 = 4	V2 = 5
V1 = 0	10.64	10.73	10.82	10.91
V1 = 1	11.04	11.14	11.24	11.32
V1 = 2	11.46	11.55	11.64	11.73
V1 = 3	11.86	11.95	12.04	–

Tools

Get Citation

Copy Citation Text

Ya-Nan Sun, Yan-Hui Wang, Le-Le Song, Hai-Bin Du, Xiao-Chun Wang, Lan-Lai He, Si-Zuo Luo, Qin Yang, Jing Leng, Fu-Chun Liu. Photoelectron imaging on vibrational excitation and Rydberg intermediate states in multi-photon ionization process of NH₃ molecule[J]. Chinese Physics B, 2020, 29(9):

Download Citation

EndNote(RIS)BibTex Plain Text

Set citation alerts for article

Save article for my favorites

Paper Information

Received: Mar. 31, 2020

Accepted: --

Published Online: Apr. 29, 2021

The Author Email: Liu Fu-Chun (lfc@jlu.edu.cn)

DOI:10.1088/1674-1056/ab9431

Topics

Nuclear physics

Particles and fields

Particle and nuclear astrophysics and cosmology

Table 1. In non-ponderomotive force case, values of energy needed for ammonia molecule to transform from the X∼ state to different vibration levels of (upper) A state and (lower) ammonia ion.

Table 1. In non-ponderomotive force case, values of energy needed for ammonia molecule to transform from the X∼ state to different vibration levels of (upper) A state and (lower) ammonia ion.

Table 1. In non-ponderomotive force case, values of energy needed for ammonia molecule to transform from the X^∼ state to different vibration levels of (upper) A state and (lower) ammonia ion.

Table 1. In non-ponderomotive force case, values of energy needed for ammonia molecule to transform from the X^∼ state to different vibration levels of (upper) A state and (lower) ammonia ion.