Advanced THz HEB mixers for Astrophysics

About the role

The NASA Postdoctoral Program (NPP) offers unique research opportunities to highly-talented scientists to engage in ongoing NASA research projects at a NASA Center, NASA Headquarters, or at a NASA-affiliated research institute. These one- to three-year fellowships are competitive and are designed to advance NASA’s missions in space science, Earth science, aeronautics, space operations, exploration systems, and astrobiology.

Responsibilities

• Develop broadband THz Hot-Electron Bolometer (HEB) mixers with ultimate sensitivity for operation on orbital and suborbital platforms.
• Advance THz line spectroscopy of interstellar molecular clouds and THz interferometry in space using the developed mixers.
• Explore negative electro-thermal feedback mechanism for mixing in the new topic of device physics.
• Integrate HEB mixers with Quantum Cascade Laser (QCL) local oscillators (LO).
• Develop and construct prototype receivers (single-pixel and multi-pixel) based on mechanical cryocoolers.
• Laboratory investigations and optimization of mixer devices (conversion gain, IF bandwidth, noise temperature, LO power, THz coupling, etc.).

Requirements

• Previous experience with THz mixers, TES detectors, THz receivers & measurements, and corresponding laboratory techniques.
• Microwave experience is a big plus.
• Microfabrication experience is desirable.

Qualifications

• A Doctoral Degree.

Skills

• Experience with THz mixers and related technologies.
• Knowledge of microwave and quantum cascade laser technologies.
• Ability to work independently and as part of a team.
• Strong problem-solving skills.

Benefits

• One- to three-year fellowship.
• Opportunity to work at a NASA Center, NASA Headquarters, or at a NASA-affiliated research institute.
• Access to state-of-the-art facilities and equipment.
• Competitive salary and benefits package.

Pay

• Salary range: $70,000 - $90,000 per year.

Schedule

• Full-time position.

Benefits

• Health insurance.
• Retirement savings plan.
• Professional development opportunities.

Application Deadline

11/1/2026 6:00:59 PM Eastern Time Zone

Contact Information

Point of Contact: Mikeala

Eligibility

• U.S. Citizens;
• U.S. Lawful Permanent Residents (LPR);
• Foreign Nationals eligible for an Exchange Visitor J-1 visa status;
• Applicants for LPR, asylees, or refugees in the U.S. at the time of application with 1) a valid EAD card and 2) I-485 or I-589 forms in pending status.

Field of Science

Technology Development

Advisors

• Boris Karasik