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Research Gallery

Instrumentation Research

The cross-sectional view of superconducting NbN ultrathin film The cross-sectional view of superconducting NbN ultrathin film
The cross-sectional view of superconducting NbN ultrathin film ...(more)
Receiver installed on the in-door/out-door testing facility of NRAO Green Bank for noise measurement. Receiver installed on the in-door/out-door testing facility of NRAO Green Bank for noise measurement.
Receiver installed on the in-door/out-door testing facility of NRAO Green Bank for noise measurement. (Picture Credits: C.C. Lin, C.T. Ho, and Y.J. Hwang) ...(more)
Single-pixel, 700~945 MHz prototype receiver for the Baryon survey project, outlook of the corrugated short backfire antenna Single-pixel, 700~945 MHz prototype receiver for the Baryon survey project, outlook of the corrugated short backfire antenna
Single-pixel, 700~945 MHz prototype receiver for the Baryon survey project, (Left panel) outlook of the corrugated short backfire antenna(Picture Credits: C.C. Lin, C.T. Ho, and Y.J. Hwang) ...(more)
cold cartridge assembly and warm cartridge assembly cold cartridge assembly and warm cartridge assembly
cold cartridge assembly and warm cartridge assembly. This model is developed by the Microwave Device Laboratory, in collaboration with colleagues in NRAO, HIA, University of Chile, and NAOJ. (Picture Credits: ...(more)
The computer simulated mechanical layout of the ALMA Band-1 receivers The computer simulated mechanical layout of the ALMA Band-1 receivers
The computer simulated mechanical layout of the ALMA Band-1 receivers. ...(more)
Receiver Laboratory Receiver Laboratory
Receiver Laboratory ...(more)
Processing Room-2 Processing Room-2
Processing Room-2 ...(more)
Lithography Room-2 Lithography Room-2
Lithography Room-2 ...(more)
The performances of developed mixers across the atmospheric windows in THz region The performances of developed mixers across the atmospheric windows in THz region
The performances of developed SIS mixers for KVN, SMA, and ALMA band-10 mixers. The noise of receiver, tested in lab, includes the noise contribution of IF chain of 10K. ...(more)
HEB mixer chip for 1.5 THz HEB mixer chip for 1.5 THz
The top and cross-sectional view of HEB (hot-electron-bolometer) mixers. ...(more)
SQUID chip for SQUID-STM (SSTM) system SQUID chip for SQUID-STM (SSTM) system
The image of SQUID chip for a SQUID-STM (SSTM) system. ...(more)
SQUID chip for scanning SQUID system SQUID chip for scanning SQUID system
Image of SQUID (superconducting quantum interference device) chip with a 10 um direct-couple loop. ...(more)
ALMA band-10 mixer ALMA band-10 mixer
The top and cross-sectional view of SIS mixer for ALMA band-10 frequency. ...(more)
31 - 50 GHz Cryogenic HEMT Cascode Mixer 31 - 50 GHz Cryogenic HEMT Cascode Mixer
The 31 - 50 GHz Cryogenic HEMT Cascode mixer was developed in ASIAA Microwave Device Laboratory for the ALMA Band-1 Receiver Key component development. The mixer is with very low ...(more)
Hybrid RF low-noise amplifier for 700~945 MHz observations Hybrid RF low-noise amplifier for 700~945 MHz observations
Hybrid RF low-noise amplifier for 700~945 MHz observations. Measured at temperature around 20 K, this device achieve a noise performance less than 5K over a limited bandwidth. (Picture Credit: C.C. ...(more)
The 13-element, 1.2 meter-dish Yuan T. Lee AMiBA on the Mauna Loa Observatory, Hawaii. The 13-element, 1.2 meter-dish Yuan T. Lee AMiBA on the Mauna Loa Observatory, Hawaii.
The 13-element, 1.2 meter-dish Yuan T. Lee AMiBA on the Mauna Loa Observatory, Hawaii. ...(more)
Optical/Infrared Laboratory Optical/Infrared Laboratory
Optical/Infrared Laboratory ...(more)
Microwave Device Laboratory Microwave Device Laboratory
Microwave Device Laboratory ...(more)
Superconducting Device Laboratory Superconducting Device Laboratory
Superconducting Device Laboratory ...(more)
Full Q-band microstrip to waveguide transition probe. Full Q-band microstrip to waveguide transition probe.
Full Q-band microstrip to waveguide transition probe. The symmetric-sleeve E-plane transition probe mounted on a housing block. This low-loss broadband passive millimeter-wave planar circuit is to fulfill the components required ...(more)
Ultra-low-phase-noise broadband tuning voltage-controlled transistor oscillators, the packaged circuit module, the phase-lock circuit module. Ultra-low-phase-noise broadband tuning voltage-controlled transistor oscillators, the packaged circuit module, the phase-lock circuit module.
Ultra-low-phase-noise broadband tuning voltage-controlled transistor oscillators, the packaged circuit module, the phase-lock circuit module. The goal of this development project is to provide possible miniaturized low-thermal dissipation local oscillator source ...(more)
Ultra-low-phase-noise broadband tuning voltage-controlled transistor oscillators, the packaged circuit module. Ultra-low-phase-noise broadband tuning voltage-controlled transistor oscillators, the packaged circuit module.
Ultra-low-phase-noise broadband tuning voltage-controlled transistor oscillators, the packaged circuit module. The goal of this development project is to provide possible miniaturized low-thermal dissipation local oscillator source for the Atacama Large ...(more)
Photonic Local Oscillator Source Photonic Local Oscillator Source
Internal photos of Laser Synthesizer instrument: left - top view of optical circuitry including Erbium Doped Fiber Amplifier and custom Fiber Bragg Grating filter assembly; right - bottom view of ...(more)
Cryogenic 8-18 GHz Intermediate Frequency Amplifier Module for Wide Bandwidth Receiver Cryogenic 8-18 GHz Intermediate Frequency Amplifier Module for Wide Bandwidth Receiver
Magnified view of the cryogenic IF amplifier packaged with input/output microstrip lines and bypass capacitors. The chip size is 2mm×1mm. This device is designed for future wide-IF SMA SIS receiver. ...(more)
The SMA Receivers Upgrade The SMA Receivers Upgrade
The evolution of the SMA receiver configuration: the low-noise amplifier (LNA) upgrade. In 2007, the LNA bandwidth remained in 4-6GHz for first generation receiver. By 2011, the amplifier was upgraded ...(more)
300GHz receiver with wide IF range 300GHz receiver with wide IF range
Wide IF Band Receiver ...(more)
5 Gsps ADC board 5 Gsps ADC board
The 8-bit, 5 Giga Samples/sec analog-to-digital converter (ADC) developed in ASIAA. This board is the first product from our digital signal processing (DSP) effort in support of the Collaboration for ...(more)
Mixer Performance Testing System -2 Mixer Performance Testing System -2
Mixer Performance Testing System -2 ...(more)
The Canon 50M pixel camera and the testing setup for the centroid calculation. 2 The Canon 50M pixel camera and the testing setup for the centroid calculation. 2
The Canon 50M pixel camera and the testing setup for the centroid calculation. ...(more)
The Canon 50M pixel camera and the testing setup for the centroid calculation. The Canon 50M pixel camera and the testing setup for the centroid calculation.
The Canon 50M pixel camera and the testing setup for the centroid calculation. ...(more)
The layout of TAOS2 CMOS sensor. The layout of TAOS2 CMOS sensor.
The layout of TAOS2 CMOS sensor. ...(more)
The WIRCam project initiated the optical/infrared (OIR) instrumentation development in ASIAA The WIRCam project initiated the optical/infrared (OIR) instrumentation development in ASIAA
Top: The interface board and the 320x256 InGaAs array for the characterization system. Left: the AFM image of the QDs used in QDIPs. Right: the average charge inside the QDs ...(more)
Clean room for Nb-based superconducting device fabrication at NTHU Clean room for Nb-based superconducting device fabrication at NTHU
Clean room for Nb-based superconducting device fabrication at Tsing-Hua campus, Hsin-Chu, Taiwan (about 100 km from Taipei). ...(more)
Clean room 2 Clean room 2
Clean room for Nb-based superconducting device fabrication at Tsing-Hua campus, Hsin-Chu, Taiwan (about 100 km from Taipei). ...(more)
Post Processing Room-2 Post Processing Room-2
Post Processing Room-2 ...(more)
Integrated Dual polarization mixer - mixer chip Integrated Dual polarization mixer - mixer chip
The images of IDP (integrated dual polarization) mixer chip ...(more)
Integrated Dual polarization mixer - mixer block Integrated Dual polarization mixer - mixer block
The mixer block for IDP (integrated Dual polarization) mixer ...(more)
Some of the key people associated with the Greenland Telescope (GLT) project posting in front of the ALMA NA prototype antenna Some of the key people associated with the Greenland Telescope (GLT) project posting in front of the ALMA NA prototype antenna
Some of the key people associated with the Greenland Telescope (GLT) project posting in front of the ALMA NA prototype antenna.The GLT project will retrofit and redeploy this antenna to ...(more)
Filter exchanger for Subaru HSC Filter exchanger for Subaru HSC
The filter exchanger of Subaru Hyper SuprimeCam inside the Subaru telescope dome. ...(more)
Hyper SuprimeCam (HSC) of Subaru Hyper SuprimeCam (HSC) of Subaru
Hyper SuprimeCam installed on Subaru telescope ...(more)
Cryogenically coolde 31-50GHz MHEMT MMIC LNA Modules Cryogenically coolde 31-50GHz MHEMT MMIC LNA Modules
A Cryogenically coolde 31-50GHz Metamorphic High-Electron-Mobility Transistor (MHEMT) monolithic microwave integrated circuit (MMIC) low-noise amplifier (LNA) Modules has been developed for ALMA Band-1 receiver key component development. ...(more)
One baseline digital correlator One baseline digital correlator
The one baseline digital correlator is under testing on AMIBA now. Employed the ROACH2 by CASPER community as the platform and used two of our own 5 Gsps ADCs to ...(more)
10 Gsps Analog to Digital Converter 10 Gsps Analog to Digital Converter
10 Giga samples per second Analog to Digital Printed Circuit Board is developing by digital group of the Institute. ...(more)
Wide IF band (4-12GHz) SMA 200GHz receiver insert Wide IF band (4-12GHz) SMA 200GHz receiver insert
Wide IF band (4-12GHz) SIS receiver for SMA project ...(more)
ALMA band-10 mixer made in ASIAA ALMA band-10 mixer made in ASIAA
The mixer is fabricated using ASIAA junction process. The performance is verified by NAOJ band-10 team. The receiver noise temperature is quite close to the specifications of ALMA band-10 reciever. ...(more)
The 7-element vs. 13-element AMiBA on the Mauna Loa Observatory, Hawaii The 7-element vs. 13-element AMiBA on the Mauna Loa Observatory, Hawaii
The AMiBA project, observing at 3 mm wavelength, is an important initiative to develop our observational cosmology program in a very competitive field of science. This project has challenged several ...(more)
Phase-locked loop evaluation board Phase-locked loop evaluation board
Phase-locked loop evaluation board for GaAs HBT Voltage-Controlled Oscillator MMIC module ...(more)
A niobium SIS mixer developed in ASIAA to operate at 850 GHz A niobium SIS mixer developed in ASIAA to operate at 850 GHz
A niobium SIS mixer developed in ASIAA to operate at 850 GHz. The establishment of the SIS fabrication facility in ASIAA is one of the most important milestones in the ...(more)
A prototype W-band mixer developed for the AMiBA project A prototype W-band mixer developed for the AMiBA project
A prototype W-band mixer developed for the AMiBA project. Left: a packaged module used in the AMiBA prototype; Right: the MMIC chip that the module contains. Working with the experts ...(more)
The Submillimeter Array The Submillimeter Array
The Submillimeter Array, an eight-element radio telescope ensemble in the foreground of the figure, is currently one of the most powerful telescopes directly accessible by the astronomers in Taiwan. With ...(more)
A MMIC Layout of a voltage-control-oscillator A MMIC Layout of a voltage-control-oscillator
A MMIC Layout of a voltage-control-oscillator ready for fabrication in a local semiconductor foundry. This is a development project to facilitate our MMIC design and fabrication capability, which may benefit ...(more)
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