Zygo Corporation is a global leader in the design and manufacture of advanced optical metrology systems and ultra-precise optical components and assemblies.

Our mission is to enable customer success by delivering innovative precision optical and metrology solutions that exceed expectations.

ZYGO is comprised of these groups:

  • 3D Optical Profilers
  • Laser Interferometers
  • Nano Position Sensors
  • Precision Optical Components & Systems

ZYGO's competencies and success stem from the core values embedded in the DNA of the company – a passion for precision, an obsession with quality, integrity in customer relationships, and pride in everything we do.

We have a large and highly knowledgeable team of experts in the fields of precision metrology and optics who deliver exceptional results for our customers by constantly pushing the boundaries of what is possible. Our passion for innovation is evidenced by approximately 750 patents awarded since the Company's founding. As a vertically integrated company, our teams work collaboratively under one roof.

Founded in 1970, and headquartered in Middlefield, Connecticut, ZYGO's global presence is supported by approximately 500 dedicated and highly skilled individuals.

In 2014, ZYGO became part of the Ultra Precision Technologies Division of AMETEK, Inc., a leading global manufacturer of electronic instruments and electro-mechanical devices. ZYGO enjoys mutually beneficial relationships with its AMETEK sister companies, collaborating on technologies and sharing resources in order to provide the best possible experience for our customers.


Zygo Corporation

Laurel Brook Road

Middlefield, CT 06455-0448


Phone: 1-800-ZYGO-NOW

Fax: 860-347-8372

Contact: Neil Curtis


  • Did Denis Gabor build the first all-optical computer for processing interference fringe patterns? Was Isaac Newton the first to create a synthetic off-axis hologram? Is my white-light 3D profiler actually a digital holography system? These are some of the questions addressed in this paper, which considers the many contributions of holography to the advancement of interferometry for surface topography measurement.

  • In this case study, Zygo Advanced Imaging Group's TINT Virtual Stepper Defect Analysis System's ability to predict CD printability of various known features on photomasks is tested. The validation of this tool will help keep both mask makers and wafer makers on schedule.

  • Ignoring materials, intended usage, manufacturability, or measurability often leads to an asphere lens that's too expensive to produce and too difficult to measure. The pieces need to fit together to ensure maximized performance and cost effectiveness.

  • Metronom Health, an early-stage medical device company developing an innovative, opto-enzymatic continuous blood glucose monitoring technology, found that ZYGO’s metrology tools were a key enabling technology that helped to drive their product innovation by providing valuable process and component information.

  • Understanding surface roughness as it relates to a machined part, polished item, or manufactured part is crucial in determining how a part will perform, wear, appear, or function. One tool that can be used with high confidence is a 3D non-contact optical profiler such as the ZYGO Nexview, NewView, or ZeGage.

  • High powered lasers, such as those in the ultra-violet (UV) wavelength range (100 to 400 nm) are now used in medical, micro-machining, semi-conductor chip manufacturing, automotive, and defense, and aerospace technologies. UV lasers have distinct advantages over visible light and infrared lasers. 

  • Products and components made for the aerospace sector are often mission-critical; both precision and reliability are vital to success. This places an onus on metrology tools to work well, feeding back measurement results that are right first time and right every time.

  • Fission splits uranium into smaller elements and releases large amounts of energy used to heat water in nuclear reactors and ultimately produce electricity. Fusion is the fusing or combining of two or more smaller atoms into a larger one. So what's the deal with each?

  • Today, additive manufacturing (AM) is dramatically changing the way that manufacturers produce end-use parts and components. Not surprisingly, analysis of the accuracy and repeatable tolerance range of AM has become a critical issue.

  • With asphere production, one part of the process is no more important than the others. Ignoring materials, intended usage, manufacturability, or measurability often leads to a lens too expensive to produce and too difficult to measure. Learn how VFA+ can help you make educated decisions.