Directional THz generation in hot Rb vapor excited to a Rydberg state

Mark Lam; Sambit B. Pal; Thibault Vogt; Thibault Vogt; Martin Kiffner; Martin Kiffner; Wenhui Li; Wenhui Li

doi:10.1364/OL.418618

Optics Letters
Vol. 46,
Issue 5,
pp. 1017-1020
(2021)
•https://doi.org/10.1364/OL.418618

Directional THz generation in hot Rb vapor excited to a Rydberg state

Mark Lam, Sambit B. Pal, Thibault Vogt, Martin Kiffner, and Wenhui Li

Not Accessible

Your library or personal account may give you access

Get PDF
Email
Share
Get Citation
Copy Citation Text
Mark Lam, Sambit B. Pal, Thibault Vogt, Martin Kiffner, and Wenhui Li, "Directional THz generation in hot Rb vapor excited to a Rydberg state," Opt. Lett. 46, 1017-1020 (2021)

Export Citation
- BibTex
- Endnote (RIS)
- HTML
- Plain Text
Citation alert
Save article

Check for updates

Abstract

We optically excite $^{85}{\rm Rb}$ atoms in a heated vapor cell to a low-lying Rydberg state $10{{\rm D}_{5/2}}$ and observe directional terahertz (THz) beams at 3.3 THz and 7.8 THz. These THz fields are generated by amplified spontaneous emission from the $10{{\rm D}_{5/2}}$ state to the $11{{\rm P}_{3/2}}$ and $8{{\rm F}_{7/2}}$ states, respectively. In addition, we observe ultraviolet (UV) light produced by four-wave mixing of optical pump lasers and the 3.3 THz field. We characterize the generated THz power over the detuning and power of pump lasers, and identify experimental conditions favoring THz and UV generation, respectively. Our scheme paves a new pathway towards generating high-power narrowband THz radiation.

Full Article | PDF Article

More Like This

Collimated UV light generation by two-photon excitation to a Rydberg state in Rb vapor

Mark Lam, Sambit B. Pal, Thibault Vogt, Christian Gross, Martin Kiffner, and Wenhui Li
Opt. Lett. 44(11) 2931-2934 (2019)

Telecom-wavelength spectra of a Rydberg state in a hot vapor

Wenfang Li, Jinjin Du, Mark Lam, and Wenhui Li
Opt. Lett. 47(17) 4399-4402 (2022)

Collimated blue and infrared beams generated by two-photon excitation in Rb vapor

J. F. Sell, M. A. Gearba, B. D. DePaola, and R. J. Knize
Opt. Lett. 39(3) 528-531 (2014)

Previous Article Next Article

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (2)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

$n$	$ν$	$λ$	$\| d_{D P} \|$	$n^{'}$	$ν$	$λ$	$\| d_{D F} \|$
	$10 D_{5 / 2} \to n P_{3 / 2}$				$10 D_{5 / 2} \to n^{'} F_{7 / 2}$
8	71.2	4.2	0.83	5	88.4	3.4	0.65
9	37.7	7.95	1.24	6	48.0	6.25	1.65
10	17.0	17.6	1.44	7	23.6	12.7	4.82
11	3.3	91.2	63.6	8	7.8	38.7	27.68

THz Optics	Efficiency at 3.3 (7.8) THz
Si window	0.4 (0.4)
TPX plate	0.55 (0.5)
BP filter (3.1–3.5 THz)	0.25 ( $\sim 0$ )
BP filter (6.7–8.1 THz)	$\sim 0$ (0.2)
Beam splitter [reflection]	0.9 (0.9)

$n$	$ν$	$λ$	$\| d_{D P} \|$	$n^{'}$	$ν$	$λ$	$\| d_{D F} \|$
	$10 D_{5 / 2} \to n P_{3 / 2}$				$10 D_{5 / 2} \to n^{'} F_{7 / 2}$
8	71.2	4.2	0.83	5	88.4	3.4	0.65
9	37.7	7.95	1.24	6	48.0	6.25	1.65
10	17.0	17.6	1.44	7	23.6	12.7	4.82
11	3.3	91.2	63.6	8	7.8	38.7	27.68

THz Optics	Efficiency at 3.3 (7.8) THz
Si window	0.4 (0.4)
TPX plate	0.55 (0.5)
BP filter (3.1–3.5 THz)	0.25 ( $\sim 0$ )
BP filter (6.7–8.1 THz)	$\sim 0$ (0.2)
Beam splitter [reflection]	0.9 (0.9)

Abstract

Cited By

Figures (4)

Tables (2)

Optics Letters