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PCA - Photoconductive Antenna for Terahertz waves, λ ~ 800 nm

Photoconductive antennas with LT-GaAs absorber layer

PCA order information:
Part-No description: PCA-l-g-w-λ-x
• l - antenna length
• g - gap distance
• w - gap width
• λ - laser wavelength
• x - mounting condition
Parallel-line antenna
  • Large bandwidth
  • Low signal amplitude
  • Recommended as emitter

parallel line antenna

parallel line antenna

   PCA-40-05-10-800-x

• Antenna length l: 40 µm
• Gap distance g: 5 µm
• Gap width w: 10 µm
• Laser wavelength λ: ≤ 800 nm
Data sheet (pdf)
Mounting & price table
Quote

geometrical antenne parameters

   PCA-60-05-10-800-x

• Antenna length l: 60 µm
• Gap distance g: 5 µm
• Gap width w: 10 µm
• Laser wavelength λ: ≤ 800 nm
Data sheet (pdf)
Mounting & price table
Quote

geometrical antenne parameters

Bow-tie antenna
  • Moderate bandwith
  • High signal amplitude
  • Recommended as detector

bow-tie antenna

Picture three bow-tie antennas

   bPCA-100-05-10-800-x

• Antenna length l: 100 µm
• Gap distance g: 5 µm
• Gap width w: 10 µm
• Laser wavelength λ: ≤ 800 nm
Data sheet (pdf)
Mounting & price table
Quote

geometrical antenne parameters

   bPCA-180-05-10-800-x

• Antenna length l: 180 µm
• Gap distance g: 5 µm
• Gap width w: 10 µm
• Laser wavelength λ: ≤ 800 nm
Data sheet (pdf)
Mounting & price table
Quote

geometrical antenne parameters

   bPCA-870-05-10-800-x

• Antenna length l: 870 µm
• Gap distance g: 5 µm
• Gap width w: 10 µm
• Laser wavelength λ: ≤ 800 nm
Data sheet (pdf)
Mounting & price table
Quote

geometrical antenne parameters

   bPCA-3000-05-10-800-x

• Antenna length l: 3000 µm
• Gap distance g: 5 µm
• Gap width w: 10 µm
• Laser wavelength λ: ≤ 800 nm
Data sheet (pdf)
Mounting & price table
Quote

geometrical antenne parameters

Bow-tie antenna with finger gap
  • Moderate bandwidth
  • For low optical power
  • Recommended as emitter and detector

Finger gap antenna

Picture finger gap antenna

   PCA-90-01-10-800-x

• Antenna length l: 90 µm
• Finger distance g: 1 µm
• Gap width w: 10 µm
• Laser wavelength λ: ≤ 800 nm
Data sheet (pdf)
Mounting & price table
Quote

   PCA-180-01-10-800-x

• Antenna length l: 180 µm
• Finger distance g: 1 µm
• Gap width w: 10 µm
• Laser wavelength λ: ≤ 800 nm
Data sheet (pdf)
Mounting & price table
Quote

Logarithmic spiral antenna
  • Low bandwidth
  • Large signal amplitude
  • Rotating polarization direction
  • Recommended as emitter and detector

Finger gap antenna

Picture finger gap antenna

   SPCA-4Pi-05-3000-800-x

• Spiral angle: 4π
• Gap distance g: 5 µm
• Antenna diameter: 3000 µm
• Laser wavelength λ: ≤ 800 nm
Data sheet (pdf)
Mounting & price table
Quote

   SPCA-5Pi-05-3000-800-x

• Spiral angle: 5π
• Gap distance g: 5 µm
• Antenna diameter: 3000 µm
• Laser wavelength λ: ≤ 800 nm
Data sheet (pdf)
Mounting & price table
Quote

Butterfly antenna
  • Small bandwidth
  • Large signal amplitude
  • Recommended as detector

Bow-tie antenna

5 bow-tie antenna chips

   PCA-44-06-10-800-x

• Antenna length l: 44 µm
• Gap distance g: 6 µm
• Gap width w: 10 µm
• Laser wavelength λ: ≤ 800 nm
Data sheet (pdf)
Mounting & price table
Quote

geometrical antenne parameters

   PCA-44-16-16-800-x

• Antenna length l: 44 µm
• Gap distance g: 16 µm
• Gap width w: 16 µm
• Laser wavelength λ: ≤ 800 nm
Data sheet (pdf)
Mounting & price table
Quote

geometrical antenne parameters

   PCA-44-34-100-800-x

• Antenna length l: 44 µm
• Large gap distance g: 34 µm
• Gap width w: 100 µm
• Laser wavelength λ: ≤ 800 nm
Data sheet (pdf)
Mounting & price table
Quote

geometrical antenne parameters

   PCA-30-10-10-800-x

• Antenna length l: 30 µm
• Gap distance g: 10 µm
• Gap width w: 10 µm
• Laser wavelength λ: ≤ 800 nm
Data sheet (pdf)
Mounting & price table
Quote

geometrical antenne parameters

   PCA-30-14-14-800-x

• Antenna length l: 30 µm
• Gap distance g: 14 µm
• Gap width w: 14 µm
• Laser wavelength λ: ≤ 800 nm
Data sheet (pdf)
Mounting & price table
Quote

geometrical antenne parameters

Interdigital array antenna
  • Large bandwidth
  • High signal amplitude
  • Needs large optical power
  • Emitter and detector

Interdigital array antenna

Photo interdigital array antenna

   iPCA-21-05-300-800-x

• Dipol length l: 21 µm
• Gap distance g: 5 µm
• Gap width w: 300 µm
• Array area: 300 µm x 300 µm
• Laser wavelength λ: ≤ 800 nm
Data sheet (pdf)
• x = h: mounted on hyperhemispherical Si lens
Price: 1 700.- €/pc
• x = c: mounted on elliptic collimating Si lens with 20 mm diameter
Price: 1 850.- €/pc
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geometrical antenne parameters

   iPCA-21-05-1000-800-x

• Dipol length l: 21 µm
• Gap distance g: 5 µm
• Gap width w: 1000 µm
• Array area: 1 mm x 1 mm
• Laser wavelength λ: ≤ 800 nm
Data sheet (pdf)
• x = h: mounted on hyperhemispherical Si lens
Price: 1 800.- €/pc
• x = c: mounted on elliptic collimating Si lens with 20 mm diameter
Price: 1 950.- €/pc
Quote

geometrical antenne parameters

Mounting condition x & price

• x = 0: unmounted PCA chip


• Unmounted antenna chip
• Chip area 4.0 mm x 4.0 mm
• Chip thickness 625 µm
• Price: 550.- €/pc
<• Quote

Unmounted PCA chip

• x = h: on hyperhemisherical Si-lens


  • Mounted antenna on 25.4 mm diameter aluminum heat sink
  • hyperhemispherical silicon lens with 12 mm diameter
  • THz beam divergence angle 17°
  • 1 m long coaxial cable with BNC or SMA connector
  • Data sheet (pdf)
  • Price: 1 300.- €/pc
  • Quote

PCA with hyperhemispherical Si lena

PCA with hyperhemispherical Si lena

• x = c: on collimating Si-lens


  • Mounted antenna on 25.4 mm diameter aluminum heat sink
  • Collimating elliptic silicon lens with 20 mm diameter
  • 1 m long coaxial cable with BNC or SMA connector
  • Data sheet (pdf)
  • Price: 1 500.- €/pc
  • Quote

Photo PCA with collimating Si lens

PCA with collimating Si lens

• x = a: on aspheric focusing Si-lens


  • Mounted antenna on 25.4 mm diameter aluminum heat sink
  • Aspheric focusing silicon lens with 50 mm focal length
  • Silicon lens diameter 20 mm
  • 1 m long coaxial cable with BNC or SMA connector
  • Data sheet (pdf)
  • Price: 1 500.- €/pc
  • Quote

Photo PCA with focusing Si lens

PCA with focusing Si lens

• x = c-f: fiber coupled


  • Fiber coupled antenna
  • 1.5 m long Panda fiber (PM780-HP) with FC/APC or FC/PC connector
  • Other optical fiber lengths or types are available.
  • PCA on collimating elliptic silicon lens with 20 mm diameter
  • 1.5 m long coaxial cable with BNC or SMA connector
  • The fiber coupled antenna comes with test report.
  • Data sheet (pdf)
  • Price: 2 800.- €/pc
  • Quote

Fiber coupled PCA

Additional options

• -CTL-D25mm, collimating TPX lens


Collimating TPX lens

• -FTL-f32.5mm, focusing TPX lens


Focusing TPX lens

• -p, preamplifier for detector antenna


  • Integrated preamplifier with power supply.
  • For use in an environment with strong electromagnetic interferences.
  • Not possible for fiber coupled antennas.
  • Data sheet (pdf)
  • Price: 400.- €/pc
  • Quote

Receiver PCA with preamplifier

• -l, mounted focusing optical lens


  • Focusing aspheric optical lens for free space laser excitation.
  • The lens comes mounted and adjusted on the PCA.
  • Data sheet (pdf)
  • Price: 400.- €/pc
  • Quote

Optical focusing lens

• xyz translation stage


  • xyz 25 mm translation stage with differential adjuster and kinematic mirror mount.
  • Three adjuster screws for alignment of the antenna with respect to the laser beam and the THz optics.
  • Data sheet (pdf)
  • Price: 1200.- €/pc
  • Quote

xyz translation stage