Coherent terahertz radiation detection: Direct comparison between free-space electro-optic sampling and antenna detection

Y. Cai; I. Brener; J. Lopata; J. Wynn; L. Pfeiffer; J. B. Stark; Q. Wu; X. C. Zhang; J. F. Federici

doi:10.1063/1.121894

Coherent terahertz radiation detection: Direct comparison between free-space electro-optic sampling and antenna detection

Y. Cai, I. Brener, J. Lopata, J. Wynn, L. Pfeiffer, J. B. Stark, Q. Wu, X. C. Zhang, J. F. Federici

Physics

Research output: Contribution to journal › Review article › peer-review

155 Scopus citations

Abstract

We compare the use of free-space electro-optic sampling (FSEOS) with photoconducting antennas to detect terahertz (THz) radiation in the range of 0.1-3 THz. For the same average THz power and low-frequency modulation, signal-to-noise ratio and sensitivity are better with antenna detection at frequencies smaller than 3 THz. When the modulation frequency is increased to more than 1 MHz in FSEOS, both detection schemes have comparable performance. Using a singular-electric-field THz emitter, we demonstrate the feasibility of a THz imaging system using real-time delay scanning in FSEOS and only 20 mW of laser power.

Original language	English (US)
Pages (from-to)	444-446
Number of pages	3
Journal	Applied Physics Letters
Volume	73
Issue number	4
DOIs	https://doi.org/10.1063/1.121894
State	Published - 1998

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

Access to Document

10.1063/1.121894

Cite this

@article{d4be02aa5a30495ca0ba1f8fa67cb668,

title = "Coherent terahertz radiation detection: Direct comparison between free-space electro-optic sampling and antenna detection",

abstract = "We compare the use of free-space electro-optic sampling (FSEOS) with photoconducting antennas to detect terahertz (THz) radiation in the range of 0.1-3 THz. For the same average THz power and low-frequency modulation, signal-to-noise ratio and sensitivity are better with antenna detection at frequencies smaller than 3 THz. When the modulation frequency is increased to more than 1 MHz in FSEOS, both detection schemes have comparable performance. Using a singular-electric-field THz emitter, we demonstrate the feasibility of a THz imaging system using real-time delay scanning in FSEOS and only 20 mW of laser power.",

author = "Y. Cai and I. Brener and J. Lopata and J. Wynn and L. Pfeiffer and Stark, {J. B.} and Q. Wu and Zhang, {X. C.} and Federici, {J. F.}",

year = "1998",

doi = "10.1063/1.121894",

language = "English (US)",

volume = "73",

pages = "444--446",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

number = "4",

}

TY - JOUR

T1 - Coherent terahertz radiation detection

T2 - Direct comparison between free-space electro-optic sampling and antenna detection

AU - Cai, Y.

AU - Brener, I.

AU - Lopata, J.

AU - Wynn, J.

AU - Pfeiffer, L.

AU - Stark, J. B.

AU - Wu, Q.

AU - Zhang, X. C.

AU - Federici, J. F.

PY - 1998

Y1 - 1998

N2 - We compare the use of free-space electro-optic sampling (FSEOS) with photoconducting antennas to detect terahertz (THz) radiation in the range of 0.1-3 THz. For the same average THz power and low-frequency modulation, signal-to-noise ratio and sensitivity are better with antenna detection at frequencies smaller than 3 THz. When the modulation frequency is increased to more than 1 MHz in FSEOS, both detection schemes have comparable performance. Using a singular-electric-field THz emitter, we demonstrate the feasibility of a THz imaging system using real-time delay scanning in FSEOS and only 20 mW of laser power.

AB - We compare the use of free-space electro-optic sampling (FSEOS) with photoconducting antennas to detect terahertz (THz) radiation in the range of 0.1-3 THz. For the same average THz power and low-frequency modulation, signal-to-noise ratio and sensitivity are better with antenna detection at frequencies smaller than 3 THz. When the modulation frequency is increased to more than 1 MHz in FSEOS, both detection schemes have comparable performance. Using a singular-electric-field THz emitter, we demonstrate the feasibility of a THz imaging system using real-time delay scanning in FSEOS and only 20 mW of laser power.

UR - http://www.scopus.com/inward/record.url?scp=0000176866&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0000176866&partnerID=8YFLogxK

U2 - 10.1063/1.121894

DO - 10.1063/1.121894

M3 - Review article

AN - SCOPUS:0000176866

SN - 0003-6951

VL - 73

SP - 444

EP - 446

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 4

ER -

Coherent terahertz radiation detection: Direct comparison between free-space electro-optic sampling and antenna detection

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this