Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Uncertainty in Measurement: Reading Instruments02:46

Uncertainty in Measurement: Reading Instruments

37.6K
Counting is the type of measurement that is free from uncertainty, provided the number of objects being counted does not change during the process. Such measurements result in exact numbers. By counting the eggs in a carton, for instance, one can determine exactly how many eggs are there in the carton. Similarly, the numbers of defined quantities are also exact. For example, 1 foot is exactly 12 inches, 1 inch is exactly 2.54 centimeters, and 1 gram is exactly 0.001 kilograms. Quantities...
37.6K
Glassware Calibration01:11

Glassware Calibration

2.0K
Accurate calibration of glassware, such as volumetric flasks, pipettes, and burettes, is essential to ensure accurate measurements in the analytical laboratory. Calibration helps maintain consistency across measurements and prevents errors arising from inaccurate volumes.
Volumetric flasks: Volumetric flasks are designed to prepare aqueous solutions of precise volumes accurately with a calibration line on the neck. To calibrate a volumetric flask, it is important to fill it with distilled...
2.0K
Distance Corrections01:15

Distance Corrections

430
To achieve precise distance measurements, especially in surveying and construction, certain corrections must be applied to account for potential sources of error like the standardization errors, temperature variations, and slope adjustments.Standardization error emerges when measurement equipment undergoes changes, such as wear, repairs, or weather impacts. To address this, surveyors compare the equipment’s readings to a standard. This process identifies any deviation that might lead to...
430
Electronic Distance Measuring Instruments01:30

Electronic Distance Measuring Instruments

771
Electronic Distance Measuring Instruments (EDMs) are essential tools in modern surveying, offering precise distance measurements by emitting electromagnetic signals and calculating the time required for these signals to travel to a target and return. Two primary types of signals are used in EDMs — light waves and microwaves — each suited to specific environmental and distance requirements. Light-wave-based EDMs utilize either infrared or laser light, providing high accuracy over...
771
Common Leveling Mistakes and Errors01:17

Common Leveling Mistakes and Errors

674
A survey team is tasked with determining the elevation difference between points Point A and Point B, separated by uneven terrain. They use a leveling instrument and a leveling rod.Common MistakesMisreading the Rod: During a backsight reading at Point A, the instrumentman observes the rod partially obscured by tall grass. Instead of reading 1.135 m, they mistakenly record 1.735 m due to the misalignment of the crosshair with the wrong graduation. This error adds 0.600 m to all subsequent...
674
Adjusting a Traverse01:12

Adjusting a Traverse

477
In the site survey of a four-sided traverse, internal angles are essential to ensure geometric accuracy. The survey revealed that the sum of the measured internal angles was 359 degrees and 48 minutes, which is 12 minutes less than the expected 360 degrees. This discrepancy signals an error likely arising from measurement inaccuracies during the fieldwork.To rectify this error, the adjustment process involved distributing the 12-minute shortfall equally across the four internal angles. By...
477

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Evolution of biphoton states in ghost imaging with multiple objects.

Optics express·2026
Same author

miRNA-Targeted Herbal Compounds Against Gastric Precancerous Evolution in Chronic Atrophic Gastritis.

Dose-response : a publication of International Hormesis Society·2026
Same author

[Clinical efficacy of closed reduction and percutaneous pinning in the treatment of Lauge-Hansen typeⅡankle fractures with posterior-external rotation].

Zhongguo gu shang = China journal of orthopaedics and traumatology·2026
Same author

Differences in food sensitization patterns between infants/toddlers and children: a cross-sectional study of patients aged 0-14 years in urban China.

Frontiers in allergy·2026
Same author

Short-term gaseous and particulate air pollution exposure and risk of acute kidney injury: a 12-year case-crossover study [2013-2024] in Guangzhou, China.

Journal of thoracic disease·2026
Same author

Metabolomics discover distinct metabolite profiles in children with different airway allergic diseases.

Frontiers in immunology·2026
Same journal

Real-Time Vibrational Spectroscopy Reveals an Inversion Transition State in the Photoisomerization of Phenylazoimidazole.

The journal of physical chemistry letters·2026
Same journal

Precursor-Directed Self-Assembly in Hydrothermal Carbon Nitride Nanostructures Revealed by Nano-FTIR.

The journal of physical chemistry letters·2026
Same journal

Correction to "Equation-of-Motion Block-Correlated Coupled Cluster Method for Excited Electronic States of Strongly Correlated Systems".

The journal of physical chemistry letters·2026
Same journal

Rationalizing Stacking-Dependent Charge Injection Dynamics in Radical-Based Organic Light-Emitting Diodes.

The journal of physical chemistry letters·2026
Same journal

Bottom-Up Formation of the Simplest Geminal Thiol─Methanedithiol (CH<sub>2</sub>(SH)<sub>2</sub>)─and the Methyl Hydrodisulfide (H<sub>3</sub>CSSH) Isomer in Interstellar Analogue Ices.

The journal of physical chemistry letters·2026
Same journal

Trion Mediated Sequential Charge Separation in Functionalized CsPbBr<sub>3</sub>/AgInS<sub>2</sub> Hybrid Nanocrystals.

The journal of physical chemistry letters·2026
See all related articles

Related Experiment Video

Updated: May 3, 2026

Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals
07:03

Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals

Published on: August 15, 2018

9.2K

Unraveling Tunable Optical Anisotropy in Colloidal Quantum Wells Using Mueller Matrix Ellipsometry.

Chenlin Wang1, Yueming Wang2, Xian Zhao2,3

  • 1School of Information Science and Engineering, Shandong University, Qingdao 266237, China.

The Journal of Physical Chemistry Letters
|September 19, 2025
PubMed
Summary
This summary is machine-generated.

Colloidal quantum wells (CQWs) exhibit giant optical anisotropy, exceeding natural crystals. This thickness-tunable property in CdSe CQWs opens new avenues for nanophotonics.

More Related Videos

Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures
08:01

Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures

Published on: November 21, 2019

7.6K
Hyperspectral Imaging as a Tool to Study Optical Anisotropy in Lanthanide-Based Molecular Single Crystals
07:24

Hyperspectral Imaging as a Tool to Study Optical Anisotropy in Lanthanide-Based Molecular Single Crystals

Published on: April 14, 2020

18.4K

Related Experiment Videos

Last Updated: May 3, 2026

Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals
07:03

Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals

Published on: August 15, 2018

9.2K
Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures
08:01

Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures

Published on: November 21, 2019

7.6K
Hyperspectral Imaging as a Tool to Study Optical Anisotropy in Lanthanide-Based Molecular Single Crystals
07:24

Hyperspectral Imaging as a Tool to Study Optical Anisotropy in Lanthanide-Based Molecular Single Crystals

Published on: April 14, 2020

18.4K

Area of Science:

  • Materials Science
  • Nanotechnology
  • Optics

Background:

  • Colloidal quantum wells (CQWs) offer atomic-level thickness control and strong excitonic effects, making them promising for nanophotonics.
  • However, their intrinsic optical anisotropy has not been precisely quantified.

Purpose of the Study:

  • To quantitatively resolve the intrinsic optical anisotropy of colloidal quantum wells (CQWs).
  • To explore the relationship between CQW thickness and optical anisotropy.

Main Methods:

  • Mueller matrix spectroscopic ellipsometry (350-650 nm).
  • Back focal plane imaging.

Main Results:

  • Record-high birefringence (Δnmax ≈ 1.95) and dichroism (Δκmax ≈ 1.53) were observed in CdSe CQW monolayers.
  • Anisotropy arises from in-plane heavy-hole exciton transitions and thickness-tunable quantum confinement.
  • Optical anisotropy increases with decreasing thickness (5.5 to 3.5 monolayers) due to enhanced heavy-hole/light-hole splitting and preferential in-plane dipole alignment (~97%).

Conclusions:

  • CdSe CQWs possess giant, thickness-tunable optical anisotropy, surpassing natural birefringent crystals.
  • These CQWs represent a solution-processable platform for advanced polarization-resolved photonic studies.